Anritsu VectorStar ME7848A-0272 Maintenance Manual
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Anritsu VectorStar ME7848A-0272 Maintenance Manual

Opto-electronic network analyzer
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Maintenance Manual
TM
VectorStar
ME7848A Series
Opto-electronic Network Analyzer
ME7848A-0240 40 GHz, 850 nm system
ME7848A-0270 70 GHz, 1550 nm system
ME7848A-0271 70 GHz, 1310 nm system
ME7848A-0272 70 GHz, 1310/1550 nm system
ME7848A-0140 40 GHz, 850 nm system (VNA and O/E module only)
ME7848A-0170 70 GHz, 1550 nm system (VNA and O/E module only)
ME7848A-0171 70 GHz, 1310 nm system (VNA and O/E module only)
ME7848A-0172 70 GHz, 1310/1550 nm system (VNA and O/E module only)
Anritsu Company
P/N: 10410-00778
490 Jarvis Drive
Revision B
Morgan Hill, CA 95037-2809
Published: January 2022
USA
Copyright 2022 Anritsu Company. All Rights Reserved.
http://www.anritsu.com

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Summary of Contents for Anritsu VectorStar ME7848A-0272

  • Page 1 ME7848A-0171 70 GHz, 1310 nm system (VNA and O/E module only) ME7848A-0172 70 GHz, 1310/1550 nm system (VNA and O/E module only) Anritsu Company P/N: 10410-00778 490 Jarvis Drive Revision B Morgan Hill, CA 95037-2809 Published: January 2022 Copyright 2022 Anritsu Company. All Rights Reserved. http://www.anritsu.com...
  • Page 2 NOTICE Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers as a guide for the proper installation, operation and maintenance of Anritsu Company equipment and computer programs. The drawings, specifications, and information contained herein are the property of Anritsu Company, and any unauthorized use or disclosure of these drawings, specifications, and information is prohibited;...

  • Page 3: Table Of Contents

    Contacting Anritsu ........
  • Page 4 Table of Contents (Continued) ME7848A-0270 System Verification – 1550 nm Configuration......3-18 ME7848A-0270 1550 nm System Setup ........3-19 Optical Power Meter (OPM) Measurement Setup –...

  • Page 5: Chapter 1 - General Information

    From here, you can select the latest sales, service and support contact information in your country or region, provide online feedback, complete a “Talk to Anritsu” form to get your questions answered, or obtain other services offered by Anritsu.

  • Page 6: Related Documentation

    1-4 Related Documentation General Information Related Documentation All documents listed below are available as free downloads at www.anritsu.com. Product Information, Compliance, and Safety • VectorStar Product Information, Compliance, and Safety (PICS) – 10100-00063 VectorStar™ MS464xB Series Vector Network Analyzers • MS464xB Series VNA Technical Data Sheet – 11410-00611 •...

  • Page 7: Updates To Manuals

    General Information 1-5 Electrostatic Discharge (ESD) Prevention Updates to Manuals For updates to any of the VectorStar Series VNA documentation, visit Anritsu’s Web site at: http://www.anritsu.com/en-us/test-measurement/products/ms4640b-series Electrostatic Discharge (ESD) Prevention All electronic devices, components, and instruments can be damaged by electrostatic discharge. It is important to take preventative measures to protect the instrument and its internal subassemblies from electrostatic discharge.
  • Page 8 1-6 ME7848A Series ONA System Overview General Information Table 1-1. ME7848A-02xx Standard ONA System Components (2 of 3) Part Number Name Specifications 2000-1957-R 850 nm Accessory Kit for 40 GHz ME7848A ONA system Standard ME7848A-0270 Configuration MS4647B VectorStar MS4647B Vector Network Analyzer 10 MHz to 70 GHz V(m) Test Ports (VNA) MN4765B with...
  • Page 9 General Information 1-6 ME7848A Series ONA System Overview Table 1-1. ME7848A-02xx Standard ONA System Components (3 of 3) Part Number Name Specifications 2000-1958-R 1310 and 1550 nm Accessory Kit for 70 GHz ME7848A ONA system Standard ME7848A-0272 Configuration MS4647B VectorStar MS4647B Vector Network Analyzer 10 MHz to 70 GHz V(m) Test Ports (VNA) MN4765B with...

  • Page 10: Me7848A-01Xx Standard Broadband Vna System Components

    1-6 ME7848A Series ONA System Overview General Information ME7848A-01xx Standard Broadband VNA System Components (VNA and O/E module only) Table 1-2. ME7848A-01xx Standard ONA System Components (1 of 2) Part Number Name Specifications Standard ME7848A-0140 Configuration MS4644B VectorStar MS4644B Vector Network Analyzer 10 MHz to 40 GHz K (m) Test Ports (VNA) MN4765B with...
  • Page 11 General Information 1-6 ME7848A Series ONA System Overview Table 1-2. ME7848A-01xx Standard ONA System Components (2 of 2) Part Number Name Specifications Standard ME7848A-0171 Configuration MS4647B VectorStar MS4647B Vector Network Analyzer 10 MHz to 70 GHz V(m) Test Ports (ONA) MN4765B with O/E Calibration Module option 0071...

  • Page 12: Recommended Test Equipment

    1-7 Recommended Test Equipment General Information Recommended Test Equipment The tables below list the recommended test equipment to be used for all maintenance activities for the ME7848A Opto-electronic Network Analyzer (ONA) systems. • Table 1-3, “Recommended Test Equipment for ME7848A ONA System Test Equipment –...

  • Page 13: Chapter 2 - Replaceable Parts

    There are no serviceable components or subassemblies inside the MN4775A-0040, MN4775A-0070, MN4775A-0071 E/O, and MN4775A-0072 converters or the MN4765B-0040, Note MN4765B-0070, MN4765B-0071, and MN4775A-0072 O/E modules. The modules must be returned to Anritsu Company for repair. Table 2-1. ME7848A Series System Level Replaceable Parts List Part Number...
  • Page 14 2-2 ME7848A Series System Replaceable Parts Replaceable Parts PN: 10410-00778 Rev. B VectorStar ME7848A Series MM...

  • Page 15: Chapter 3 - Performance Verification

    Chapter 3 — Performance Verification Introduction This chapter provides the following procedures to be used to verify the performance of the ME7848A Opto-electronic Network Analyzer systems.: • “ME7848A-0240 System Verification – 850 nm Configuration” on page 3-4 • “ME7848A-0270 System Verification – 1550 nm Configuration” on page 3-18 •...

  • Page 16: Laser Safety

    If equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Only with written consent from Anritsu may changes to single components be carried out or components not supplied by Anritsu be used.
  • Page 17 Performance Verification 3-3 Calibration and Measurement Conditions Standard Conditions The standard conditions specified below must be observed when performing any of the operations in this chapter − both during calibration and during measurement. • Warm-up Time: • 90 minutes • Environmental Conditions •...

  • Page 18: Me7848A-0240 System Verification - 850 Nm Configuration

    ME7848A-0240 850 nm System Setup 1. Configure components (VNA, O/E, E/O, RF, and Optical cables) as shown in Figure 3-1. The Anritsu MN4775A-0040 does not have Laser Out and Laser In connectors like the Note MN4775A-0070, MN4775A-0071, and MN4775A-0072. Anritsu MN4775A-0040 Ignition Key “OFF”...
  • Page 19 Performance Verification 3-4 ME7848A-0240 System Verification – 850 nm Configuration 5. MN4775A-0040 E/O Converter: a. Keep Ignition-Key in OFF Position, as shown in Figure 3-1. 6. Make initial VNA RF Connections shown in Figure 3-1. a. Place KF-KF Adapter on VNA Port 2. b.
  • Page 20 3-4 ME7848A-0240 System Verification – 850 nm Configuration Performance Verification 11. Select VOA Mode: a. Touch center section of VOA OUTPUT POWER region to bring up secondary screen as shown in Figure 3-2 (left side). b. At secondary screen, touch Mode and then touch Out to change mode to CONSTANT OUTPUT. c.

  • Page 21: Optical Power Meter (Opm) Measurement Setup - 850 Nm Configuration

    Performance Verification 3-4 ME7848A-0240 System Verification – 850 nm Configuration Optical Power Meter (OPM) Measurement Setup – 850 nm Configuration 1. Verify Optical Sensor Model: S155C 800 – 1700nm, fitted to PM100D Meter. 2. Apply Power via black button adjacent to sensor (side panel). 3.

  • Page 22: Optical Power Meter Measurement - 850 Nm Configuration

    3-4 ME7848A-0240 System Verification – 850 nm Configuration Performance Verification Optical Power Meter Measurement – 850 nm Configuration Anritsu MN4775A-0040 Ignition Key “ON” Laser Aperture No optical loop in this Configuration ThorLabs PM100D + S155C 800-1700 nm Sensor -65.67 dBm λ...

  • Page 23: Frequency Response Repeatability S21 Setup - 850 Nm Configuration

    4. Connect Green-colored end of Optical cable to MN4765B-0040 as shown in Figure 3-5. 5. Connect the VNA Port 1 to Anritsu MN4775A-0040 E/O Converter RF Input as shown in Figure 3-5. • Use torque wrench to tighten the connectors to ensure that the connections do not work themselves loose during the test.
  • Page 24 3-4 ME7848A-0240 System Verification – 850 nm Configuration Performance Verification 10. Select VOA Mode a. Touch center section of VOA OUTPUT POWER region to bring up secondary screen. b. At secondary screen, touch Mode and then touch Out to change mode to CONSTANT OUTPUT. c.

  • Page 25: Frequency Response Repeatability S21-Mag Measurement - 850 Nm Configuration

    Performance Verification 3-4 ME7848A-0240 System Verification – 850 nm Configuration Frequency Response Repeatability S21-Mag Measurement – 850 nm Configuration 1. On the VectorStar VNA: a. Touch Trace and set the # of Traces to 1. b. Double click on TR1 to make the trace full screen. c.
  • Page 26 3-4 ME7848A-0240 System Verification – 850 nm Configuration Performance Verification 9. There are many ways one can set up Microsoft Excel for calculating the RMS values. Below is an example: a. Assume the data are in an Excel worksheet as follows: i.

  • Page 27: Optical Noise Floor S21 Setup - 850 Nm Configuration

    4. Connect Green-colored end of optical cable to MN4765B-0040 as shown in Figure 3-7. 5. Connect the VNA Port 1 to Anritsu MN4775A-0040 E/O Converter RF Input as shown in Figure 3-7. • Use torque wrench to tighten the connectors to ensure that the connections do not work themselves loose during the test.
  • Page 28 3-4 ME7848A-0240 System Verification – 850 nm Configuration Performance Verification 10. Select VOA Mode: a. Touch center section of VOA OUTPUT POWER region to bring up secondary screen. b. At secondary screen, touch Mode and then touch Out to change mode to CONSTANT OUTPUT. c.

  • Page 29: Optical Nose Floor S21 Measurement - 850 Nm Configuration

    Performance Verification 3-4 ME7848A-0240 System Verification – 850 nm Configuration Optical Nose Floor S21 Measurement – 850 nm Configuration 1. On VectorStar VNA, select Calibration. 2. Select Calibrate. 3. Select Manual Cal. 4. Select Transmission Freq. Response. 5. Select Modify Cal Setup. 6.
  • Page 30 3-4 ME7848A-0240 System Verification – 850 nm Configuration Performance Verification 7. Click on Thru1-2 Info and the THRU INFO dialog appears (see Figure 3-10) and verify that Length (mm), Line loss (dB/mm), and @Frequency (GHz) are set to 0.000. Figure 3-10. THRU INFO Dialog 8.
  • Page 31 Performance Verification 3-4 ME7848A-0240 System Verification – 850 nm Configuration 11. Set E/O Converter Ignition key to OFF (see figure Figure 3-11). Anritsu MN4775A-0040 Ignition Key “OFF” Laser Aperture VectorStar Port 1 Port 2 Anritsu MN4765B-0040 Figure 3-11. Turning Off Laser 12.

  • Page 32: Me7848A-0270 System Verification - 1550 Nm Configuration

    3-5 ME7848A-0270 System Verification – 1550 nm Configuration Performance Verification 18. There are many ways one can set up Microsoft Excel for calculating the RMS values. Here is an example: a. Assume the data are in an Excel worksheet as follows: i.

  • Page 33: Me7848A-0270 1550 Nm System Setup

    Anritsu MN4765B-0070 Figure 3-12. Initial ME7848A-0270 1550 nm Initial System Setup Refer to the MN4775A Operation Manual – 10410-00774 regarding proper operation of the Anritsu Note E/O Converter. 2. Apply power to MN4775A-0070 E/O Converter by pushing the Standby button until it turns green.
  • Page 34 3-5 ME7848A-0270 System Verification – 1550 nm Configuration Performance Verification 5. MN4775A-0070 E/O Converter: a. Verify Optical Loop is in place on MN4775A-0070 E/O Converter. There is a key on the optical fiber cable that needs to be oriented correctly before the screw will Note tighten correctly.
  • Page 35 Performance Verification 3-5 ME7848A-0270 System Verification – 1550 nm Configuration 10. Select ITU Channel: a. Touch center section of LASER WAVELENGTH region to bring up secondary screen (not shown in figure 3-2). b. At secondary screen select ITU Channel 34 = 1550.12 nm WAVE LENGTH. Touch green checkmark. c.

  • Page 36: Optical Power Meter (Opm) Measurement Setup - 1550 Nm Configuration

    3-5 ME7848A-0270 System Verification – 1550 nm Configuration Performance Verification Optical Power Meter (OPM) Measurement Setup – 1550 nm Configuration 1. Apply Power via black button adjacent to sensor (side panel). 2. Allow 1 minute warm up ThorLabs PM100D + S155C 800-1700 nm Sensor -65.67 dBm λ...

  • Page 37: Optical Power Meter Measurement - 1550 Nm Configuration

    Performance Verification 3-5 ME7848A-0270 System Verification – 1550 nm Configuration Optical Power Meter Measurement – 1550 nm Configuration Anritsu MN4775A-0070 Ignition Key “ON” Laser Out/In Optical Loop Connected ThorLabs PM100D + S155C 800-1700 nm Sensor -65.67 dBm λ Lambda Key...

  • Page 38: Frequency Response Repeatability S21 Setup - 1550 Nm Configuration

    4. Connect Green-colored end of Optical cable to MN4765B-0070 as shown in Figure 3-16. 5. Connect the VNA Port 1 to Anritsu MN4775A-0070 E/O Converter RF Input as shown in Figure 3-16. • Use torque wrench to tighten the connectors to ensure that the connections do not work themselves loose during the test.
  • Page 39 Performance Verification 3-5 ME7848A-0270 System Verification – 1550 nm Configuration 11. Select VOA Mode: a. Touch center section of VOA OUTPUT POWER region to bring Up Secondary Screen. b. At secondary screen, touch Mode and then touch Out to change mode to CONSTANT OUTPUT. c.

  • Page 40: Frequency Response Repeatability S21-Mag Measurement - 1550 Nm Configuration

    3-5 ME7848A-0270 System Verification – 1550 nm Configuration Performance Verification Frequency Response Repeatability S21-Mag Measurement – 1550 nm Configuration 1. On VectorStar VNA: a. Touch Trace and set the # of Traces to 1. b. Double click on TR1 to make the trace full screen. c.
  • Page 41 Performance Verification 3-5 ME7848A-0270 System Verification – 1550 nm Configuration 9. There are many ways one can set up Microsoft Excel for calculating the RMS values. Here is an example: a. Assume the data are in an Excel worksheet as follows: i.

  • Page 42: Optical Noise Floor S21 Setup - 1550 Nm Configuration

    4. Connect Green-colored end of Optical cable to MN4765B-0070 as shown in Figure 3-18. 5. Connect the VNA Port 1 to Anritsu MN4775A-0070 E/O Converter RF Inputas shown in Figure 3-18. • Use torque wrench to tighten the connectors to ensure that the connections do not work themselves loose during the test.
  • Page 43 Performance Verification 3-5 ME7848A-0270 System Verification – 1550 nm Configuration 10. Select ITU-Channel a. Touch center section of LASER WAVELENGTH region to bring up secondary screen. b. At secondary screen select ITU Channel 31 = 1550.041 nm WAVE LENGTH. c. Touch Home to return to the main screen. 11.
  • Page 44 3-5 ME7848A-0270 System Verification – 1550 nm Configuration Performance Verification e. Set Sweep type to Segmented Sweep (Freq Based). Figure 3-19. MS4647B Frequency-Based Segmented Sweep Settings 3-30 PN: 10410-00778 Rev. B VectorStar ME7848A Series MM...

  • Page 45: Optical Nose Floor S21 Measurement - 1550 Nm Configuration

    Performance Verification 3-5 ME7848A-0270 System Verification – 1550 nm Configuration Optical Nose Floor S21 Measurement – 1550 nm Configuration 1. VectorStar VNA, select Calibration. 2. Select Calibrate. 3. Select Manual Cal. 4. Select Transmission Freq. Response. 5. Select Modify Cal Setup. 6.
  • Page 46 3-5 ME7848A-0270 System Verification – 1550 nm Configuration Performance Verification 7. Click on Thru1-2 Info and the screen appears (see Figure 3-21) and verify Length (mm), Line loss (dB/mm), and @Frequency (GHz) are set to 0.000. Figure 3-21. THRU INFO Dialog 8.
  • Page 47 Performance Verification 3-5 ME7848A-0270 System Verification – 1550 nm Configuration 11. Set E/O Converter Ignition key to OFF, see figure Figure 3-22. Anritsu MN4775A-0070 Ignition Key “OFF” Laser Out/In Optical Loop Connected VectorStar Port 1 Port 2 Anritsu MN4765B-0070 Figure 3-22. Turning Off Laser VectorStar ME7848A Series MM PN: 10410-00778 Rev.
  • Page 48 3-5 ME7848A-0270 System Verification – 1550 nm Configuration Performance Verification 12. Select Scale a. Click on Reference Value and set it to -50 dB. The screen should look like Figure 3-23. Figure 3-23. Typical Noise Floor Display—Reference Only 13. Select Sweep and then Hold Functions. Select Single Sweep & Hold. 14.
  • Page 49 Performance Verification 3-5 ME7848A-0270 System Verification – 1550 nm Configuration 18. There are many ways one can set up Microsoft Excel for calculating the RMS values. Here is an example: a. Assume the data are in an Excel worksheet as follows: i.

  • Page 50: Me7848A-0271 System Verification - 1310 Nm Configuration

    Anritsu MN4765B-0071 Figure 3-24. Initial ME7848A-0271 1310 nm Initial System Setup Refer to the MN4775A Operation Manual – 10410-00774 regarding proper operation of the Anritsu Note E/O Converter. 2. Apply power to MN4775A-0071 E/O Converter by pushing the Standby button until it turns green.
  • Page 51 Performance Verification 3-6 ME7848A-0271 System Verification – 1310 nm Configuration 5. MN4775A-0071 E/O Converter: a. Verify Optical Loop is in place on MN4775A-0071 E/O Converter. There is a key on the optical fiber cable that needs to be oriented correctly before the screw will Note tighten correctly.
  • Page 52 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Performance Verification 11. Select VOA Mode. a. Touch center section of VOA OUTPUT POWER region to bring up secondary screen as shown in Figure 3-25 (left side). b. At secondary screen, touch Mode and then touch Out to change mode to CONSTANT OUTPUT. c.

  • Page 53: Optical Power Meter (Opm) Measurement Setup - 1310 Nm Configuration

    Performance Verification 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Optical Power Meter (OPM) Measurement Setup – 1310 nm Configuration 1. Verify Optical Sensor Model: S155C 800 – 1700nm, fitted to PM100D Meter 2. Apply Power via black button adjacent to sensor (on side panel). 3.

  • Page 54: Optical Power Meter Measurement - 1310 Nm Configuration

    3-6 ME7848A-0271 System Verification – 1310 nm Configuration Performance Verification Optical Power Meter Measurement – 1310 nm Configuration Anritsu MN4775A-0071 Ignition Key “ON” Laser Out/In Optical Loop Connected ThorLabs PM100D + S155C 800-1700 nm Sensor -65.67 dBm λ Lambda Key...

  • Page 55: Frequency Response Repeatability S21 Setup - 1310 Nm Configuration

    4. Connect Green-colored end of Optical cable to MN4765B-0071 as shown in Figure 3-28. 5. Connect the VNA Port 1 to Anritsu MN4775A-0071 E/O Converter RF Input as shown in Figure 3-28. • Use torque wrench to tighten the connectors to ensure that the connections do not work themselves loose during the test.
  • Page 56 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Performance Verification 11. Select VOA Mode a. Touch center section of VOA OUTPUT POWER region to bring up secondary screen. b. At secondary screen, touch Mode and then touch Out to change mode to CONSTANT OUTPUT. c.

  • Page 57: Frequency Response Repeatability S21-Mag Measurement - 1310 Nm Configuration

    Performance Verification 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Frequency Response Repeatability S21-Mag Measurement – 1310 nm Configuration 1. On VectorStar VNA: a. Touch Trace and set the # of Traces to 1. b. Double click on TR1 to make the trace full screen. c.
  • Page 58 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Performance Verification 9. There are many ways one can set up Microsoft Excel for calculating the RMS values. Below is an example: a. Assume the data are in an Excel worksheet as follows: i.

  • Page 59: Optical Noise Floor S21 Setup - 1310 Nm Configuration

    4. Connect Green-colored end of Optical cable to MN4765B-0071 as shown in Figure 3-30. 5. Connect the VNA Port 1 to Anritsu MN4775A-0071 E/O Converter RF Input as shown in Figure 3-30. • Use torque wrench to tighten the connectors to ensure that the connections do not work themselves loose during the test.
  • Page 60 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Performance Verification 11. Select VOA Mode: a. Touch center section of VOA OUTPUT POWER region to bring up secondary screen. b. At secondary screen, touch Mode and then touch Out to change mode to CONSTANT OUTPUT. c.

  • Page 61: Optical Nose Floor S21 Measurement - 1310 Nm Configuration

    Performance Verification 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Optical Nose Floor S21 Measurement – 1310 nm Configuration 1. On VectorStar VNA, select Calibration. 2. Select Calibrate. 3. Select Manual Cal. 4. Select Transmission Freq. Response. 5. Select Modify Cal Setup. 6.
  • Page 62 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Performance Verification 7. Click on Thru1-2 Info and the THRU INFO dialog appears (see Figure 3-33) and verify that Length (mm), Line loss (dB/mm), and @Frequency (GHz) are set to 0.000. Figure 3-33. THRU INFO Dialog 8.
  • Page 63 Performance Verification 3-6 ME7848A-0271 System Verification – 1310 nm Configuration 11. Set E/O Converter Ignition key to OFF (see figure Figure 3-34). Anritsu MN4775A-0071 Ignition Key “OFF” Laser Out/In Optical Loop Connected VectorStar Port 1 Port 2 Anritsu MN4765B-0071 Figure 3-34. Turning Off Laser VectorStar ME7848A Series MM PN: 10410-00778 Rev.
  • Page 64 3-6 ME7848A-0271 System Verification – 1310 nm Configuration Performance Verification 12. Select Scale a. Click on Reference Value and set it to -50 dB. The screen should look like Figure 3-35. Figure 3-35. Typical Noise Floor Display—Reference Only 13. Select Sweep and then Hold Functions. Select Single Sweep & Hold. 14.

  • Page 65: Me7848A-0272 System Verification - 1310/1550 Nm Configuration

    Performance Verification 3-7 ME7848A-0272 System Verification – 1310/1550 nm Configuration 18. There are many ways one can set up Microsoft Excel for calculating the RMS values. Here is an example: a. Assume the data are in an Excel worksheet as follows: i.
  • Page 66 3-7 ME7848A-0272 System Verification – 1310/1550 nm Configuration Performance Verification 3-52 PN: 10410-00778 Rev. B VectorStar ME7848A Series MM...

  • Page 67: Chapter 4 - Theory Of Operation

    Chapter 4 — Theory of Operation Introduction This chapter provides a brief functional description of the ME7848A Series ONA system. It also briefly describes the operation of each major instrument or assembly. System Description The ME7848A opto-electronic network analyzer (ONA) system comprises a VNA, a calibration O/E module, and a laser/modulator converter assembly.
  • Page 68 4-3 System Components Theory of Operation Figure 4-1. ME7848A Series ONA System Interconnections PN: 10410-00778 Rev. B VectorStar ME7848A Series MM...

  • Page 69: Functional Description Of System Components

    Theory of Operation 4-4 Functional Description of System Components Functional Description of System Components This section contains brief descriptions of each system components. VectorStar MS464xB Vector Network Analyzer The VectorStar MS464xB VNA performs the following tasks: • Controlling the operation of the entire ME7848A Series ONA system •...

  • Page 70: Mn4775A E/O Converter

    The MN4765B is a characterized, unamplified photodiode module. It is used as an optical receiver with the Anritsu MS464xB and MS4652xB Series VNAs to perform highly accurate and stable optoelectronic measurements of both modulators (E/O) and photoreceivers (O/E). Bandwidth and wavelength coverage depends on the option selected when the module is ordered.

  • Page 71: Me7848A Ona System Operation

    Theory of Operation 4-5 ME7848A ONA System Operation ME7848A ONA System Operation This section describes the system operation of the ME7848A ONA System. Stimulus Signal Generation The MS464xB VNA outputs a stimulus signal from its test port and feeds directly to the MN4775A via coaxial cable.
  • Page 72 4-5 ME7848A ONA System Operation Theory of Operation PN: 10410-00778 Rev. B VectorStar ME7848A Series MM...

  • Page 73: Chapter 5 - Troubleshooting

    If equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Only with written consent from Anritsu may changes to single components be carried out or components not supplied by Anritsu be used.
  • Page 74 5-2 General Safety Warnings Troubleshooting Laser Radiation The -007x options of the MN4775A are class 1M devices, while the MN4775A-0040 is a class 3B device (due to the shorter wavelength). • MN4775A-007x: Class 1M Laser Warning • MN4775A-0040: Class 3B Laser Avoid Exposure –...
  • Page 75 Troubleshooting 5-2 General Safety Warnings Follow Intended Usage Guidelines Caution This product is not suitable for household room illumination. Inputs and outputs must only be connected with shielded connection cables. Do not obstruct the air ventilation slots in housing. Mobile telephones, cellular phones, or other radio transmitters are not to be used within the range of three meters of this unit since the electromagnetic field intensity may then exceed the maximum allowed disturbance values according to IEC 61326-1.

  • Page 76: Troubleshooting Strategy

    5-3 Troubleshooting Strategy Troubleshooting Troubleshooting Strategy The ME7848A Series ONA System consists of the following major components: • MS464X Series VectorStar VNA • MN4775A-00xx E/O Converter • MN4765B-0xxx O/E Calibration Module A good understanding of the respective ME7848A Series ONA System operation is an important aid to troubleshoot system failures.

  • Page 77: Appendix A - Me7848A Ona Test Records

    Appendix A — ME7848A ONA Test Records Introduction This appendix provides test records that can be used to record the performance of the ME7848A Millimeter-Wave configuration VNA system. Make a copy of the following Test Record pages and document the measured values each time performance verification is performed.

  • Page 78: Me7848A-0240 850 Nm Test Records

    A-2 ME7848A-0240 850 nm Test Records ME7848A ONA Test Records ME7848A-0240 850 nm Test Records Instrument Information ME7848A Operator: Date: VectorStar VNA Model: VectorStar VNA Options: RF Test Band and Wave Length Table A-1. Optical Power Measurement – 850 nm Band ME7848A-0240 Optical Power Measurement S21-Mag Upper Lower...
  • Page 79 ME7848A ONA Test Records A-2 ME7848A-0240 850 nm Test Records Table A-3. Optical Noise Floor S21 (Option 51) – 850 nm Band ME7848A-0240 Optical Nose Floor S21 (Option 51) Measured Upper Lower Measurement RF Test Band Value Specification Specification Uncertainty (MHz) E/O Module (dBm rms)

  • Page 80: Me7848A-0270 1550 Nm Test Records

    A-3 ME7848A-0270 1550 nm Test Records ME7848A ONA Test Records ME7848A-0270 1550 nm Test Records Instrument Information ME7848A Operator: Date: VectorStar VNA Model: S/N: VectorStar VNA Options: RF Test Band and Wave Length Table A-5. Optical Power Measurement – 1550 nm Band ME7848A-0270 Optical Power Measurement Upper Lower...
  • Page 81 ME7848A ONA Test Records A-3 ME7848A-0270 1550 nm Test Records Table A-7. Optical Noise Floor S21 (Option 51) – 1550 nm Band ME7848A-0270 Optical Nose Floor S21 (Option 51) Measured Upper Lower Measurement RF Test Band Value Specification Specification Uncertainty (MHz) E/O Module (dBm rms)

  • Page 82: Me7848A-0271 1310 Nm Test Records

    A-4 ME7848A-0271 1310 nm Test Records ME7848A ONA Test Records ME7848A-0271 1310 nm Test Records Instrument Information ME7848A Operator: Date: VectorStar VNA Model: VectorStar VNA Options: RF Test Band and Wave Length Table A-9. Optical Power Measurement – 1310 nm Band ME7848A-0271 Optical Power Measurement Upper Lower...
  • Page 83 ME7848A ONA Test Records A-4 ME7848A-0271 1310 nm Test Records Table A-11. Optical Noise Floor S21 (Option 51) – 1310 nm Band ME7848A-0271 Optical Nose Floor S21 (Option 51) Measured Upper Lower Measurement RF Test Band Value Specification Specification Uncertainty (MHz) E/O Module (dBm rms)

  • Page 84: Me7848A-0272 1310/1550 Nm Test Records

    A-5 ME7848A-0272 1310/1550 nm Test Records ME7848A ONA Test Records ME7848A-0272 1310/1550 nm Test Records Instrument Information ME7848A-0272 Operator: Date: VectorStar VNA Model: S/N: VectorStar VNA Options: RF Test Band and Wave Length Table A-13. Optical Power Measurement – 1310 nm Band ME7848A-0272 Optical Power Measurement –...
  • Page 85 ME7848A ONA Test Records A-5 ME7848A-0272 1310/1550 nm Test Records Table A-15. Frequency Response Repeatability – 1310 nm Band ME7848A-0272 Frequency Response Repeatability S21-Mag – 1330 nm RF Test Band Measured Value Measurement Uncertainty (MHz) E/O Module (dB rms) (dB) Band (0.070-0.300) MN4775A-0072 0.014...
  • Page 86 A-5 ME7848A-0272 1310/1550 nm Test Records ME7848A ONA Test Records Table A-17. Optical Noise Floor S21 (Option 51) – 1310 nm Band ME7848A-0271 Optical Nose Floor S21 (Option 51) – 1310 nm Measured Upper Lower Measurement RF Test Band Value Specification Specification Uncertainty...
  • Page 87 ME7848A ONA Test Records A-5 ME7848A-0272 1310/1550 nm Test Records Table A-19. Optical Noise Floor S21 (Option 61 or 62) – 1310 nm Band ME7848A-0272 Optical Nose Floor S21 (Option 61 or 62) – 1310 nm Measured Upper Lower Measurement RF Test Band Value Specification...
  • Page 88 A-5 ME7848A-0272 1310/1550 nm Test Records ME7848A ONA Test Records A-12 PN: 10410-00778 Rev. B VectorStar ME7848A Series MM...
  • Page 90 Anritsu Company 490 Jarvis Drive Anritsu utilizes recycled paper and environmentally conscious inks and toner. Morgan Hill, CA 95037-2809 http://www.anritsu.com...

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