New Focus 1801 User Manual
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New Focus 1801 User Manual

125-mhz photoreceivers
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New Focus 1801 User Manual

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Summary of Contents for New Focus 1801

  • Page 1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
  • Page 2 18X1 HS rcvr rev G.fm Page 1 Thursday, September 20, 2001 2:08 PM U S E R ’ S G U I D E 125-MHz Photoreceivers Models 1801 and 1811 These photodetectors are sensitive to electrostatic discharges and could be permanently damaged if subjected to any discharges.
  • Page 3 18X1 HS rcvr rev G.fm Page 2 Thursday, September 20, 2001 2:08 PM 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.

  • Page 4: Table Of Contents

    18X1 HS rcvr rev G.fm Page 3 Thursday, September 20, 2001 2:08 PM Contents Operation Introduction ......... . . 5 Handling Precautions .
  • Page 5 18X1 HS rcvr rev G.fm Page 4 Thursday, September 20, 2001 2:08 PM 4 • Contents NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 6: Operation

    18X1 HS rcvr rev G.fm Page 5 Thursday, September 20, 2001 2:08 PM Operation Introduction The New Focus Models 1801 and 1811 125-MHz, low- noise photoreceivers address the needs of the photodetector community in the area of low-noise, high-gain, RF photoreception. These photoreceivers are available either DC or AC coupled.

  • Page 7: Handling Precautions

    Model 0921 banana plug-to- microconnector cable and a Model 0922 microconnector-to-microconnector cable. If you have a New Focus Model 0901 power supply, use the Model 0922 cable on one of the supply’s 0.3-A microconnector outputs. Do not use the Model 0921 on the Model 0901 power supply’s 0.1-A...
  • Page 8 18X1 HS rcvr rev G.fm Page 7 Thursday, September 20, 2001 2:08 PM providing a minimum of 0.25 A of current on ±15 V. The convention of the three banana plugs is: Banana Plug Voltage +15 V Green COM/GND Black -15 V 2.

  • Page 9: Theory

    18X1 HS rcvr rev G.fm Page 8 Thursday, September 20, 2001 2:08 PM Theory The Model 1801 photoreceiver contains a silicon/PIN photodiode. The Model 1811 contains an InGaAs/PIN photodiode. In both models, the photodiode is fol- lowed by a low-noise transimpedance amplifier acting as a pre-amp with a compensating amplifier as the out-...
  • Page 10 18X1 HS rcvr rev G.fm Page 9 Thursday, September 20, 2001 2:08 PM NEP Characteristics For Model 1801, the NEP from 0–10 MHz is 3.3 pW / and from 10–200 MHz the NEP is 30 pW / Therefore the integrated noise from 0–130 MHz is 328 nW and with a conversion gain of 2.4x10...
  • Page 11 (top) and noise floor (bottom). At DC the noise floor is 3.3 pW/ for Model 1801 & 2.5 pW/ Frequency, MHz for Model 1811 10 • Operation NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 12: Characteristics

    18X1 2.07 Model 18X1 (52.7) casing Distance from window Made in USA face to photodetector: 1.00 1801 2.5 mm (25.4) 1811 0.5 mm Front View 2.86 (72.6) Back View Side View 1.43 8-32 (M4) thread (36.3) DC bias output; SMB connector (included with AC versions only) SMA connector;...

  • Page 13: Photodetector Specifications

    FC or free space (FS) RF Output DC Bias Monitor output (AC-coupled units only) * NEP is frequency dependent. See page 9 for more details. 12 • Characteristics NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 14: Customer Service

    18X1 HS rcvr rev G.fm Page 13 Thursday, September 20, 2001 2:08 PM Customer Service Technical Support Information and advice about the operation of any New Focus product is available from our applications engineers. For quickest response, ask for “Technical Support” and know the model and serial numbers for your product.
  • Page 15 18X1 HS rcvr rev G.fm Page 14 Thursday, September 20, 2001 2:08 PM 14 • Customer Service NEW FOCUS, Inc. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 16 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...

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1811

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