OWL WT-1 Operation Manual
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OWL WT-1 Operation Manual

Wavetester optical power meter
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Optical Wavelength Laboratories
OPERATIONS GUIDE
WAVETESTER OPTICAL POWER METER
Model Numbers:
WT-1
WT-1V
Revision 2.0
April 18, 2019
Optical Wavelength Laboratories (OWL)
N9623 West US Hwy 12
OWL-INC.COM
Whitewater, WI 53190
Phone: 262-473-0643
Internet: OWL-INC.COM

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  • Page 1 Optical Wavelength Laboratories OPERATIONS GUIDE WAVETESTER OPTICAL POWER METER Model Numbers: WT-1 WT-1V Revision 2.0 April 18, 2019 Optical Wavelength Laboratories (OWL) N9623 West US Hwy 12 OWL-INC.COM Whitewater, WI 53190 Phone: 262-473-0643 Internet: OWL-INC.COM...

  • Page 2: Table Of Contents

    Active Equipment Power Measurement Fiber Continuity Patch Cable Testing Check MM Reference Cables - Dual OWL MM Sources Check MM Reference Cables - WaveSource MM Sources Check SM Reference Cables - Laser OWL SM Sources Check SM Reference Cables - WaveSource SM Sources...

  • Page 3: Introduction

    INTRODUCTION BEFORE YOU BEGIN All personnel testing optical fibers should be adequately trained in the field of fiber optics before using any fiber optic test equipment. If the user is not completely familiar with testing fiber optics, they should seek competent training. Such training can be acquired from a variety of sources, such as local hands-on training classes.

  • Page 4: Applications

    A comparison of the actual power measurement and the reference value determines if the installation will pass or fail. Up to 200 fiber measurements may be stored for later download into OWL Reporter software. DESCRIPTION This manual describes the operation of the WaveTester optical power meter.

  • Page 5: Precautions

    Red Laser: 650 nm ~ 0 dBm IEC 60825-1 IEC 60825-1 Optical Wavelength Laboratories Optical Wavelength Laboratories Whitewater, WI 53190 (262) 473-0643 Whitewater, WI 53190 (262) 473-0643 MODEL# WT-1 MODEL# WT-1V SERIAL# WT11019 SERIAL# WT81019 MADE IN USA MADE IN USA POWER: 5V DC...

  • Page 6: General Features

    PRESS: VFL OFF HOLD: power off - PRESS: changes the measurement wavelength; HOLD: enable AUTO AUTO mode (for auto-wavelength switching when used with an OWL WaveSource series light source). UNITS - PRESS: toggle measurement units between dBm, dB, and W;...

  • Page 7: Test Procedures

    TEST PROCEDURES ACTIVE EQUIPMENT POWER MEASUREMENT Required Accessories (1 or 2) one-meter patch cable(s) – (ensure proper connector type and fiber type) Direct Transmitter Output Power Measurement To measure the output power from a transmitter, use the following steps: Connect the WaveTester to the transmitter port on the active equipment under test, as shown at right.

  • Page 8: Fiber Continuity

    TEST PROCEDURES FIBER CONTINUITY Required Accessories (2) one-meter patch cables – (ensure proper connector type and fiber type) Checking for Fiber Continuity The WaveTester can be used to verify continuity of a fiber link, or can be used to 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 trace an optical fiber if the fibers are not properly labeled.

  • Page 9: Patch Cable Testing

    TEST PROCEDURES PATCH CABLE TESTING Required Accessories (3) one-meter patch cables – (ensure proper connector type and fiber type) (2) fiber optic adapters/couplers – (ensure proper connector type) Patch Cable Insertion Loss Patch cables should be tested periodically to ensure that they are okay to use for testing.

  • Page 10: Check Mm Reference Cables - Dual Owl Mm Sources

    STEP 3 - Set the WaveTester to ‘dBm’ Thoroughly clean and inspect the optical ports of the WaveTester and the Dual OWL, as well as the fiber connector UNITS Press on the WaveTester...

  • Page 11: Check Mm Reference Cables - Wavesource Mm Sources

    TEST PROCEDURES Checking WaveTester Series Optical Power Meters For Proper Operation USING OWL WAVESOURCE SERIES MULTIMODE SOURCES LIGHT SOURCE MODEL NUMBERS: WS-MDxx WS-MDVxx WS-MDSDxx Checking WaveTester Series Optical Power STEP 4 - Set WaveTester to 850nm Meters for Proper Operation...

  • Page 12: Check Sm Reference Cables - Laser Owl Sm Sources

    Thoroughly clean and inspect the optical ports of the read ‘dBm’ as shown at right. WaveTester and the Laser OWL, as well as the fiber connector You may need to press the endfaces, according to the brochures that have been included button several times.

  • Page 13: Check Sm Reference Cables - Wavesource Sm Sources

    TEST PROCEDURES Checking WaveTester Series Optical Power Meters For Proper Operation USING OWL WAVESOURCE SERIES SINGLEMODE SOURCES LIGHT SOURCE MODEL NUMBERS: WS-SDxx WS-VSDxx WS-MDSDxx Checking WaveTester Series Optical Power STEP 4 - Set WaveTester to 1310nm Meters for Proper Operation...

  • Page 14: Quick Reference Guides

    QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: DUAL OWL Series Multimode Sources PAGE 1 OF 5 Required Accessories (2-3) one-meter patch cables – ensure proper connector type and fiber type (1) fiber optic mandrel – used for setting references with multimode cables only; see table below for mandrel sizes multimode reference cables must be wrapped and secured around a mandrel as required by national and international Fiber Optic Test Procedures (FOTPs).
  • Page 15 Verify Patch Cable Press to power on the Dual OWL multimode light source. The 850nm port powers on first by default. Press to power on the WaveTester optical power meter. Press several times on the WaveTester until the wavelength is set to 850nm.
  • Page 16 Optical Power Meter: WAVETESTER Fiber Optic Light Source: DUAL OWL Series Multimode Sources PAGE 3 OF 5 Verify Proper Operation of the Equipment, cont. Connect the power meter and light source together with the mandrel-wrapped patch cable as shown in Figure 4 below.
  • Page 17 Remove the patch cable from the detector port on the WaveTester, and bring both units to the opposite ends of the link under test. Connect the WaveTester and Dual OWL to the link under test as shown in Figure 5 below. 1 2 3 4 5 6 7 8 9 10 11 12...
  • Page 18 QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: DUAL OWL Series Multimode Sources PAGE 5 OF 5 Take Readings, cont. Press several times until the WaveTester is set to 1300nm. AUTO SAVE Press to store the optical power measurement in the WaveTester.

  • Page 19: Wavetester/Wavesource Mm Test Kits

    QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: WAVESOURCE Series Multimode Sources PAGE 1 OF 4 Required Accessories (2) one-meter patch cables – ensure proper connector type and fiber type (1) fiber optic mandrel – used for setting references with multimode cables only; see table below for mandrel sizes 50/125 µm 62.5/125 µm Diameter 0.9 in.
  • Page 20 QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: WAVESOURCE Series Multimode Sources PAGE 2 OF 4 Verify Proper Operation of the Equipment Connect the power meter and light source together with the first patch cable as shown in Figure 3. LIGHT SOURCE CONNECTOR PORTS SC connectors shown here;...
  • Page 21 QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: WAVESOURCE Series Multimode Sources PAGE 3 OF 4 Verify Proper Operation of the Equipment, cont. Connect the power meter and light source together with the mandrel-wrapped patch cable as shown in Figure 4 below. LIGHT SOURCE CONNECTOR PORT NOTES: –...
  • Page 22 QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: WAVESOURCE Series Multimode Sources PAGE 4 OF 4 Take Readings Remove the patch cable from the detector port on the WaveTester, and bring both units to the opposite ends of the link under test.

  • Page 23: Wavetester/Laser Owl Sm Test Kits

    Cable PHYSICAL CONTACT (APC) CONNECTOR SC connectors shown here; connector style may vary Press to power on the Laser OWL singlemode laser source. The 1310nm port powers on first by default. Press to power on the WaveTester optical power meter.
  • Page 24 QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: LASER OWL Series Singlemode Sources PAGE 2 OF 3 Verify Proper Operation of the Equipment, cont. Press several times on the WaveTester until the wavelength is set to 1310nm.
  • Page 25 Remove the patch cable from the detector port on the WaveTester, and bring both units to the opposite ends of the link under test. Connect the WaveTester and Laser OWL to the link under test as shown in Figure 3 below. 1 2 3 4 5 6 7 8 9 10 11 12...

  • Page 26: Wavetester/Wavesource Sm Test Kits

    QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: WAVESOURCE Series Singlemode Sources PAGE 1 OF 3 Required Accessories (2) one-meter patch cables – ensure proper connector type and fiber type Equipment Ports Figure 1 shows the ports used during this procedure. These ports may vary depending upon the model of equipment. FIGURE 1 Test Equipment Ports Detector...
  • Page 27 QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: WAVESOURCE Series Singlemode Sources PAGE 2 OF 3 Verify Proper Operation of the Equipment, cont. Press to power on the WaveTester. Press on the WaveTester several times until the wavelength is set to 1310nm. AUTO The WaveTester should show approximately -10.00 dBm.
  • Page 28 QUICK REFERENCE GUIDES Optical Power Meter: WAVETESTER Fiber Optic Light Source: WAVESOURCE Series Singlemode Sources PAGE 3 OF 3 Take Readings Remove the patch cable from the detector port on the WaveTester, and bring both units to the opposite ends of the link under test.

  • Page 29: Owl Reporter

    OWL REPORTER INSTALLING OWL REPORTER OWL Reporter software must be installed before the WaveTester is able to download data to a PC. Follow the instructions below: Insert the OWL CD into your CD-ROM drive. When the CD Installation panel appears on your screen, click the “Install OWL Reporter” button.
  • Page 30 Click “ Install ” on the “Choose Start Menu Folder” dialog box to begin the OWL Reporter installation. Once the OWL Reporter installation has completed, click “Finish” on the “Completing the OWL Reporter Software Setup Wizard” dialog box. (end of procedure)

  • Page 31: Installing The Owl Usb Driver

    OWL REPORTER INSTALLING THE OWL USB DRIVER To avoid USB driver conflicts, the OWL USB driver must be installed before connecting the WaveTester to the PC. Follow the instructions below: Insert the OWL CD into your CD-ROM drive. When the CD Installation panel appears on your screen, click the “Install USB Drivers” button.
  • Page 32 OWL REPORTER INSTALLING THE OWL USB DRIVER, cont. Click the radio button labeled “Install the software automatically (Recommended)”, then click “Next” to continue. Click the “Continue Anyway” button on the “Software Installation” dialog box. Once the drivers have been completely installed, click the “Finish” button.

  • Page 33: Downloading Data To A Pc

    OWL USB driver must be installed before connecting the WaveTester to the PC. Start OWL Reporter. The default location for the OWL Reporter shortcut is Start » Programs » OWL » OWL Reporter. Begin the download by clicking the Download icon (as shown at right) or the Download menu option.
  • Page 34 OWL REPORTER DOWNLOADING DATA TO A PC, cont. Once the the cabling standard has been chosen, the wavelengths and fiber types that the standard supports appear in the boxes on the right. Click “Next“ to continue. View the list of available fiber types. The list will appear when the down arrow is clicked.
  • Page 35 OWL REPORTER DOWNLOADING DATA TO A PC, cont. Once the fiber type has been chosen, it appears in the drop-down box. Click “Next” to continue. Enter the length of the fiber link under test. This length will apply to all of the data points downloaded from the WaveTester.
  • Page 36 OWL REPORTER DOWNLOADING DATA TO A PC, cont. If there are any connections or splices in the link, enter them into the input boxes. Connections - t ypical fiber networks will have 2 connections – one for a patch panel located at each end of the link.
  • Page 37 OWL REPORTER DOWNLOADING DATA TO A PC, cont. Type in the organization’s name and telephone number into the input boxes. Once the organization’s name and telephone number have been entered, click OK to continue. The organization name should now appear in the drop-down box.
  • Page 38 Once the link name has been entered, click Finish to continue. Viewing OWL Reporter Data By default, OWL Reporter opens up into Detail View. However, Summary view may be more useful for fiber loss test evaluation. To switch between Summary View and Detail View, press the button that looks like an arrow, highlighted at the right.
  • Page 39 OWL REPORTER DOWNLOADING DATA TO A PC, cont. Report Printing To print the current view to a PC printer, press the print button highlighted at right to print the Summary report. The printed report will look very much like the screen. See below for a sample report.

  • Page 40: Interpreting Owl Reporter Screens And Reports

    OWL REPORTER INTERPRETING OWL REPORTER SCREENS AND REPORTS The following list of terms appear on the OWL Reporter software screen and/or printed report. The following list of terms appear on the OWL Reporter software screen and/or printed report. The following list of terms appear on the OWL Reporter software screen and/or printed report.
  • Page 41 OWL REPORTER INTERPRETING OWL REPORTER SCREENS AND REPORTS, cont. Fiber Loss Definition: during the calculation of an optical loss budget, the amount of optical loss attributed to the optical fiber in the link under test. Fiber loss is specified by cabling standards that base link budget calculation on the passive components of the link under test;...
  • Page 42 OWL REPORTER INTERPRETING OWL REPORTER SCREENS AND REPORTS, cont. Measured Power Definition: the amount of absolute optical power being received from the light source by the power meter after they have been connected to the link under test. Measured Power is compared to the System Reference Power for Pass/Fail analysis; if Measured Power is greater than the System Reference Power, the link passes;...
  • Page 43 OWL REPORTER INTERPRETING OWL REPORTER SCREENS AND REPORTS, cont. Optical Loss Definition: the amount of optical power that is lost through the link under test due to the attenuation of the passive components of the link (i.e. optical fiber, interconnections, and splices).
  • Page 44 OWL REPORTER INTERPRETING OWL REPORTER SCREENS AND REPORTS, cont. Splice Loss Definition: during the calculation of an optical loss budget, the amount of optical loss attributed to splices in the link under test. Splice loss is specified by cabling standards that base link budget calculation on the passive components of the link under test;...
  • Page 45 OWL REPORTER INTERPRETING OWL REPORTER SCREENS AND REPORTS, cont. System Reference Power (shown as Minimum Required Power on Circuit Detail Reports) Definition: the optical power level that determines whether a link passes or fails; a.k.a. Pass/Fail threshold. If the Measured Power is greater than the System Reference Power, the link will show PASS;...

  • Page 46: Operation/Maintenance

    FUL - This error code will appear when the storage memory is full, and no more data can be stored. The WaveTester can store up to 200 data points. CLEARING DATA FROM WAVETESTER MEMORY After data has been downloaded to the PC with OWL Reporter, it is recommended to save the data to a file, and clear the memory from the WaveTester. SAVE...

  • Page 47: Pc-Based Meter Control

    OPERATION/MAINTENANCE PC-BASED METER CONTROL When connected to a USB port on a PC using a terminal program (such as Hyperterminal), many of the WaveTester’s functions can be activated from the PC keyboard. The list of functions follows: Key: Function: Auto mode Description: Pressing the ‘A’...

  • Page 48: Optional Vfl Port

    OPERATION/MAINTENANCE OPTIONAL VFL (visual fault locator) PORT As an option, a Visual Fault Locator (VFL) can be installed into the WaveTester optical power meter in place of the charger port. The VFL is an invaluable troubleshooting tool with two important uses: Visual Fault Location.

  • Page 49: Visual Fault Location

    OPERATION/MAINTENANCE VISUAL FAULT LOCATION The optional VFL port in the WaveTester VFL can be used as a troubleshooting tool to determine if there are breaks, micro-bends, or any other anomalies causing excessive loss within the first few feet of the fiber under test located in the splice tray. The bright red laser injects high-intensity red laser light into the near-end connector.

  • Page 50: Visual Fiber Identification

    OPERATION/MAINTENANCE VISUAL FIBER IDENTIFICATION The optional VFL port in the WaveTester optical power meter can help take the guesswork out of identifying ports in a fiber patch panel or checking polarity of a duplex connector. Connect the VFL port to one end of a fiber link, and the high-intensity, precision- coupled red laser diode will allow the user to visually identify the port by the presence of a red glow emitting from the connector on the other end, allowing for visual port identification of fiber optic links up to 5 kilometers (3.1 miles) away.

  • Page 51: Universal Port

    Use of SC Connectors with 2.5mm Universal Port Take extra care when inserting SC connectors into the 2.5mm universal port as the spring-loading action of the SC connector may cause improper insertion. Call OWL at (262) 473-0643 with any questions.

  • Page 52: Cleaning The Detector Port

    OPERATION/MAINTENANCE CLEANING THE DETECTOR PORT Required accessories: A) Isopropyl Alcohol (91% or better) B) Round wooden toothpick with sharp point (NOTE: do not use a metal pin or needle since metal will scratch the surface of the detector) C) Cotton swab D) Jeweler’s loupe (10x magnification recommended) E) Compressed Air (not shown) Place a small amount of cotton from the swab onto the wooden toothpick as...

  • Page 53: Cleaning The Optional Vfl Port

    OPERATION/MAINTENANCE CLEANING THE OPTIONAL VFL PORT This cleaning procedure applies to the optional VFL port on the WaveTester optical power meter. For more information about cleaning the DETECTOR port on the WaveTester, see page 23. Required Accessories: Isopropyl alcohol (91% or better) In-adapter fiber optic cleaning accessories, such as 2.5mm cleaning swabs or 2.5mm HUXCleaner™...

  • Page 54: Appendices

    APPENDICES SPECIFICATIONS WAVETESTER OPTICAL POWER METER (WT-1) KEY SPECIFICATIONS Detector Type InGaAs Calibrated Wavelengths 850, 1300, 1310, 1490, 1550 Measurement Range +5 to -60 dBm Accuracy ±0.20 dB Display Resolution 0.01 dB Battery Life Up to 1000 hours (Re-chargeable Lithium Polymer) Connector Type 2.5mm/1.25mm universal...

  • Page 55: Supported Cabling Standards

    FTTH 10-GIGABIT ETHERNET STANDARD Support for the IEEE 802.3ae 10-Gigabit Ethernet standard has been added to OWL Reporter, which means that WaveTester users can now certify their 10GbE networks. With this new standard, users are given the option of choosing from one of several versions of this standard, based on the fiber type, wavelength, and 10GbE electronics used.

  • Page 56: Link Budget Calculation Worksheet

    LINK BUDGET CALCULATION WORKSHEET Operating Wavelength Fiber Type Calculate System Attenuation Fiber Loss at Operating Wavelength (Distance x Fiber Loss) Total Cable Distance Individual Fiber Loss (at operating wavelength) dB/km Total Fiber Loss Connector Loss (Connector Loss x Connector Pairs) Individual Connector Loss Number of Connector Pairs Total Connector Loss...

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