Produkter » Laser och ljusdetektion » Test och mät » Fotodetektorer » Supersnabb fotodetektor med Si PD, 1.4GHz, Fiber optic FC

Supersnabb fotodetektor med Si PD, 1.4GHz, Fiber optic FC

Artikelnr.: HSA-X-S-1G4-SI-FC

Request a quotation
  • Si Photodiodes 
  • Wavelength Range; 320 to 1000 nm 
  • Bandwidth from 10 kHz up to 1.4 GHz 
  • Max. Conversion Gain 2.5 x 10^3 V/W 
  • Min. NEP approx. 26 pW/√Hz

320..1000nm photodiode, 2.5x10^3 V/W gain, NEP  26 pW/√Hz, saturation power 400 µW.

Ultra-Fast Photoreceiver

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-SI offers an upper bandwidth limit of 1.4 GHz. Two models with a fast Si photodiode cover a spectral range from 320 to 1000 nm. Due to the sophisticated amplifier design the minimum NEP is just 26 pW/√Hz at a transimpedance of 5 x 10^3 V/A. This allows for the measurement of optical power levels in the µW 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.

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

Ø 0.4 mm Si-PIN
Spectral Range
320 ... 1000 nm
Bandwidth (−3 dB)
10 kHz ... 1.4 GHz
Rise/Fall Time
(10 % - 90 %)
250 ps
Transimpedance Gain
5 x 103 V/A
Conversion Gain
2.55 x 103 V/W
(@ 760 nm)
NEP (@ 100 MHz)
32 pW/√Hz
(@ 760 nm)
Output VSWR
2.5 : 1
Maximum Output Voltage @ 50 Ω
1.9 VPP
Output Noise
3.6 mVRMS
Available Input Options
Free space (FS) or FC

Output short-circuit protected. 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.