Related Manuals for New Focus 1554-B
Summary of Contents for New Focus 1554-B
- Page 1 (217) 352-9330 | Click HERE Find the Newport / New Focus 1554-B-50 at our website:...
- Page 2 U S E R ’ S G U I D E DC to 12-GHz Amplified Photoreceivers Models 1544-B, 1554-B, & 1580-B Including multimode “-50” option These photoreceivers are sensitive to electrostatic discharges and could be permanently damaged if subjected even to small discharges. Ground your- self adequately prior to handling these receivers or making connections.
- Page 3 Warranty New Focus, Inc. guarantees its products to be free of defects for one year from the date of shipment. This is in lieu of all other guarantees, expressed or implied, and does not cover incidental or consequential loss. Information in this document is subject to change without notice.
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Page 4: Table Of Contents
Contents Operation Introduction ......... . . 5 Handling Precautions . - Page 5 4 • Contents NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 6: Operation
Operation Introduction High-speed measurements down to a few microwatts are easy with the Models 1544-B,1554-B, and 1580-B photoreceiver modules. These modules convert optical signals to electronic signals, in effect, giving every high-speed/high-frequency instrument in your lab an optical input. In the “-B” models the optical signal is delivered to the photodiode through a single-mode fiber, whereas the... -
Page 7: Handling Precautions
Connecting to a New Focus power supply: Use the cable with the two round microconnectors. Connect one end of the cable to one of the power supply’s 300-mA outputs. -
Page 8: Microwave Connection And Set-Up
the green plug to the common ground of the two sources. 3. Connect the bias-monitor port to a voltmeter and observe the voltage level. This voltage is the DC offset plus dark current. This dark voltage should be less than 5 mV. This monitor output is present in both the DC- and AC-coupled modes. -
Page 9: Connecting The Receiver To The Optical Input
fiber to ensure it is within the safe operating range. For a pulsed input, determine the maximum (peak) power. You may want to use the New Focus Model 2011-FC 200-kHz Photoreceiver for this purpose; it has a higher maximum pulse power, and has the sensitivity to aid in fiber alignment. -
Page 10: Troubleshooting
Offset Voltage,” below. Other problems, such as a damaged amplifier, are more difficult to diagnose. If the response from your receiver is lower than you expect, contact New Focus to arrange for a repair (see “Customer Service” on page 13). -
Page 11: Basic Optical Test
Figure 2, and G is the amplifier’s transimpedance gain (V/A). The gain of the bias monitor port is 1000 V/A. If the output voltage is low, then contact New Focus to arrange for a repair (see “Customer Service” on page 13). -
Page 12: Characteristics
Characteristics Characteristics Model # 1544-B 1554-B 1580-B Wavelength Range 400–1650 nm 950–1650 nm 400–870 nm (multimode versions) 550–1330 nm 950–1650 nm Minimum 3-dB Bandwidth DC to 12 GHz DC to 12 GHz DC to 12 GHz Low Frequency Cut-off 10 KHz... -
Page 13: Responsivity
Responsivity A graph of the typical and predicted responsivity of the Models 1544-B, 1554-B, and 1580-B is shown below. Figure 2: Responsivity vs. Model 1580 Model 1544 wavelength for Model 1554 Models 1544-B, 1554-B, and 1580-B 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 Wavelength [ nm ] 12 •... -
Page 14: Customer Service
Customer Service Technical Support Information and advice about the operation of any New Focus product is available from our technical support engineers. Engineers are on duty from 8:00–5:00 PST, Monday through Friday (excluding holidays). For quickest response, ask for “Technical Support” and know the model number of your photoreceiver. - Page 15 14 • Customer Service NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 16: Appendix I: Optical-Fiber Performance
Appendix I: Optical-Fiber Performance Single-mode optical fiber can provide low-loss and low-distortion if attention is paid to a few important details. First, if more than one mode is allowed to propagate in a step-index fiber, the bandwidth will be degraded to approximately --------------------- - 3-dB 2L NA... - Page 17 16 • Appendix I: Optical-Fiber Performance NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 18: Appendix Ii: Microwave Connectors
DC–55 GHz Wiltron V Wiltron V DC–65 GHz 2.4 mm New Focus also offers the following adapters: Model 1225 Male-SMA to Female-BNC Model 1226 Female-SMA to Male-BNC Model 1227 40-GHz Flex Cable, Female-K to Male-K DC to 12-GHz Photoreceivers Appendix II: Microwave Connectors • 17... - Page 19 18 • Appendix II: Microwave Connectors NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 20: Appendix Iii: Inside The Photoreceiver
The optical signal is brought from the front-panel connector to the microwave housing with a single- mode (SM) 9-µm core fiber (Models 1544-B and 1554-B), a multimode (MM) 62.5-µm core fiber (Model 1580-B), or a multimode 50-µm core fiber (-50 models). - Page 21 Bias schematic of Monitor the Models 1544-B, 1554-B, and 1580-B photoreceiver modules Switch Photodiode Microwave Output Connector 20 • Appendix III: Inside the Photoreceiver NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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