1.25Gbps / 2.5 Gbps Photodiode Amplifier Hybrid

InGaAs Photodetectors/Transimpedance Amplifiers

FCI-H125/250G-InGaAs-XX series are compact and integrated high speed InGaAs photodetector with wide dynamic range transimpedance amplifier. Combining the detector with the TIA in ahermetically sealed 4 pin TO-46 package provides ideal conditions for high speed signal amplification. High speed and superior sensitivity make these devices ideal for high-bit rate receivers used in LAN, MAN, WAN and other high speed communication systems.

TO packages come standard with a lensed cap to enhance coupling efficiency, or with a broadband double sided AR coated flat window. The FCI-H125/250G-InGaAs-XX series are also offered with FC, SC, ST and SMA receptacles.

InGaAs 1.25-2.5Gbps Amplifier Hybrid

Product Applications

  • High Speed Optical Communications
  • Gigabit Ethernet
  • Fiber Channel
  • ATM
  • SONET OC-48 / SDH STM-16

Product Features

  • InGaAs Photodetector / Low Noise Transimpedance Amplifier
  • High Bandwidth / Wide Dynamic Range
  • Hermetically Sealed TO-46 Can
  • Single +3.3 to +5V Power Supply
  • Spectral Range 1100nm to 1650nm
  • Differential Output

Electro-Optical Characteristics

Model Number Active Area Diameter Supply Voltage Supply Current Operating Wavelength Responsivity Transimpedence Sensitivity Bandwidth Low Frequency Cutoff Differential Output Output Impedence Transimpedence Linear Range Click Image to Zoom
FCI-H125G-InGaAs-75 75 µm +3 to +5.5 V 55 mA 1100-1650 nm 2500 V/W
at -17dBm; Differential
2800 Ω
-17dBm; Differential
-28 dBm
at BER 10-10; PRBS2-7-1
900 MHz
at -3dB; Small Signal
45 kHZ
at -3dB
250 mV p-p
-3dBm
50 Ω 30 µW p-p min Click to View Larger Image of (FCI-H125G-InGaAs-75)
FCI-H250G-InGaAs-75 75 µm +3 to +5.5 V 35 mA 1100-1650 nm 2500 V/W
at -17dBm; Differential
2800 Ω
-17dBm; Differential
-24 dBm
at BER 10-10; PRBS2-7-1
1750 MHz
at -3dB; Small Signal
30 kHZ
at -3dB
400 mV p-p
-3dBm
50 Ω 40 µW p-p min Click to View Larger Image of (FCI-H250G-InGaAs-75)

Electro-Optical Characteristics

Model Number Optical Overload (min) Storage Temp Operating Temp SupplyVoltage2 Input Optical Power Click Image to Zoom
FCI-H125G-InGaAs-75 -3 dBm From -40 to 125 °C From -40 to 85 °C From 0 to 5.5 V From --- to -3 dBm Click to View Larger Image of (FCI-H125G-InGaAs-75)
FCI-H250G-InGaAs-75 0 dBm From -40 to 125 °C From -40 to 85 °C From 0 to 5.5 V From --- to -3 dBm Click to View Larger Image of (FCI-H250G-InGaAs-75)