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Fast Photoreceiver HCA-S-200M-IN

Artikkelnr.: HCA-S-200M-IN-FS

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  • InGaAs Photodiodes 
  • Wavelength Range; 900 to 1700 nm 
  • Bandwidth from Real DC to 200 MHz 
  • Max. Conversion Gain 1.9 x 10^4 V/W Min. NEP approx. 6 pW/√Hz

900..1700nm photodiode, 2x10^4 V/W gain, NEP  5.4 pW/√Hz, saturation power 60 µW.

High Sensitivity at High Bandwidth

The series HCA-S-200M Photoreceivers combine fast photodiodes with the proven and outstanding FEMTO HCA Current Amplifier technology. The HCA-S-200M-IN is available with a  InGaAs photodiode covering a spectral range from 900 to 1700 nm. The amplifier transimpedance is 2 x 10^4 V/A resulting in a maximum conversion gain of 1.9 x 10^4 V/W at 1550 nm for the InGaAs model. The sophisticated DC coupled multi-stage amplifier design allows measurements from DC to a maximum bandwidth of 200 MHz corresponding to a minimum rise-time of 1.8 ns. With a NEP as low as 5.4 pW/√Hz signals with an optical power in the micro-Watt range can be detected without the need for further averaging.

Standard delivery time: 3 weeks ARO, Conditions: Ex.Works Germany unless specified

Model HCA-S-200M-IN
Photodiode 0.3 mm Ø InGaAs PIN
Spectral Range 900 ... 1700 nm
Bandwidth (-3 dB) DC ... 200 MHz
Rise/Fall Time (10% - 90%) 1.8 ns
Transimpedance Gain 2 x 104 V/A
Max. Conversion Gain 1.9 x 10V/W (@ 1550 nm)
Min NEP (@ 10 MHz) 5.2 pW/√Hz (@ 1550 nm)
Available Input Options Free space (FS) or FC


Output voltage ±1.7 V max (@ 50 Ω load). Offset adjustable by potentiometer. AC coupled units are optionally available. Output short-circuit protected. The photoreceivers with free space input come with threaded M4 and 8-32 mounting holes for use with standard mounting posts. Power supply ±15 V via 3-pin Lemo® socket. A mating connector is provided with the device. Optional power supply PS-15 available. For further information please view the datasheet or contact FEMTO.