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Ultra-Fast Photoreceivers

Series HSA-X-S

 

Ultra fast photoreceivers with FEMTO's GHz Technology

 

By combining state of the art photodiodes with the proven and outstanding FEMTO GHz amplifier technology we designed a new family of photoreceivers with a remarkable performance. The HSA-X-S offers an upper bandwidth limit of 2 GHz. Two models with either a fast Si or InGaAs photodiode cover a spectral range from 320 to 1000 nm and 850 to 1700 nm, respectively. Due to the sophisticated amplifier design the minimum NEP is just 14 pW/√Hz at a transimpedance of 5 x 10V/A. This allows for the measurement of optical power levels in the ?W range with GHz speed. For the HSA-X-S-1G4-SI with silicon photodiode the effective active diameter is a remarkably large 0.8 mm due to the use of a ball lens in front of the detector chip.
 
 
Applications
  • Spectroscopy
  • Fast Pulse and Transient Measurements
  • Optical Triggering
  • Optical Front-End for Oscilloscopes and A/D Converters
 

Ultra-Fast Photoreceivers

  Click Part # to view pdf datasheet
Model HSPR-X-I-1G4-Si
HSA-X-S-1G4-Si
HSPR-X-I-2G-IN
HSA-X-S-2G-IN
Spectral Range 320 ... 1000 nm 900 ... 1700 nm
Bandwidth 10 kHz ... 1.4 GHz 10 kHz ... 2 GHz
Photodiode 0.8 mm Ø eff. Si PIN 0.2 mm Ø InGaAs PIN
Rise- / Fall-Time (10% -90%) 250 ps 180 ps
Transimpedance Gain 5 x 103 V/A
(inverting)
5 x 103 V/A
(inverting)
Max. Conversion Gain 2.5 x 103 V/W (@ 760 nm) 4.8 x 103 V/W (@ 1550 nm)
Min NEP (@ 1 MHz) 26 pW/√Hz (@ 760 nm) 14 pW/√Hz (@ 1550 nm)
Threaded M4 and 8-32 for mounting on standard posts. 25mm Ø flange compatible with microbench systems. Model with fiber optic input or DC monitor output optionally available. Output short-circuit protected. Power supply via 3-pin LEMO socket. A mating connector is provided with the device. Optional power supply PS-15 is available. For further information please view the datasheet.

FEMTO Product Catalog (pdf)

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