New Focus 1800 Series 125-MHz Photoreceivers
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  • new_focus_1811_view2

New Focus 1800 Series 125-MHz Photoreceivers

Features

  • Balanced Combo of Gain, Bandwidth, and Low Noise
  • Best in Sensitivity for Signals with Rise and Fall Times as Short as 3ns
  • High-Level Output

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This New Focus 1811-FC InGaAs 125-MHz Photoreceiver (DC Coupled) is used and in excellent condition. Power Supply and Cable sold separately.

Configuration:
• Coupling: DC Coupled Version
• Fiber Type: N/A
• Wavelength Range: 900-1700 nm
• Optical Input Connector Type: FC
• Detector: InGaAs/PIN
• 3-dB Bandwith: DC-125 MHz (typical)
• Electrical Output Connector: SMA




Stock # 60428-1




This New Focus 1801-FS Si Detector 125-MHz Photoreceiver (AC Coupled) is used and in excellent condition. Power Supply and Cable sold separately.

Configuration:
• Coupling: AC Coupled Version
• Fiber Type: N/A
• Wavelength Range: 300-1000 nm
• Optical Input Connector Type: Freespace (FS)
• Detector: Si/PIN
• 3-dB Bandwith: DC-125 MHz (typical)
• Electrical Output Connector: SMA




Stock # 60428-2




This New Focus 0921 3-Banana M to Micro F Photoreciever to 15V Power Supply is used and in excellent condition. This cable uses a microtech connector.

Part Number: 0921
Length: Approximately 1 m




Stock # 61907-2




This New Focus 0922 Micro F to Micro F Photoreceiver to 15V Power Supply is used and in excellent condition. This cable has uses a microtech connector.

Part Number: 0922
Length: 1 m




Stock # 61907-3



  • Description
  • Tech Specs
  • Datasheets / Manuals 
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Description

The New Focus visible Model 1801 and near-IR Model 1811 offer a well-balanced combination of gain, bandwidth, and low noise over the DC–125-MHz frequency range. Because of their high transimpedance gain and low noise-equivalent power (NEP), they offer the best in sensitivity for signals with rise and fall times as short as 3 ns. This high sensitivity, combined with their high-level output, reduces the effects of downstream noise sources. With true DC coupling, they give linear responses to transient signals without artificial ringing, tails, or other anomalies. Careful RF shielding and filtering of power-supply inputs eliminate electromagnetic interference, even in laboratories with Q-switched lasers and other noisy equipment.

Product Family: 1801, 1801FC, 1801 FC, 1801-FC, 1801FS, 1801 FS, 1801-FS, 1811, 1811-FC, 1811FC, 1811 FC, 1811-FS, 1811FS, 1811 FS
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Specifications

Wavelength Range1801: 320-1000 nm
1811: 900-1700 nm
3-dB Bandwidth (DC versions)125 Mhz
3-dB Bandwidth (AC versions)25 kHz-125 MHz
Rise Time3 ns
Maximum Conversion Gain1801: 2x104 V/W
1811: 4x104 V/W
Typical Maximum Responsivity1801: 0.5 A/W at 800 nm
1811: 1.0 A/W at 1550 nm
Transimpedance Gain4x104 V/A
Output Impedance50 Ω
Minimum NEP1801: 3.3 pW/ √Hz
1811: 2.5 pW/ √Hz
CW Saturation Power1801: 110 µW at 800 nm
1811: 55 µW at 1550 nm
Maximum Pulse Power1801: 10 mW
1811: 5 mW
Detector Material/Type1801: Si/PIN
1811: InGaAs/PIN
Detector Diameter1801: 0.4 mm
1811-FC: 0.1 mm
1811-FS: 0.3 mm
Power Requirements±15 V DC, <250 mA
Optical Input1801-FC: FC
1801-FS: Free Space
1811-FC: FC
1811-FS: Free Space
Electrical Output ConnectorSMA
DC-Bias_Monitor BW (AC Version Only)1801-FC: N/A
1801-FS: 50 KHz
1811-FC: N/A
1811-FS: 50 KHz
DE-Bias-Monitor Transimpedance Gain (AC Version Only)1801-FC: N/A
1801-FS: 10 V/mA
1811-FC: N/A
1811-FS: 10 V/mA