Post holder and post not included
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 HSPR-X and HSA-X-S offer an upper bandwidth limit of 2 GHz. Two models with either a fast Si-PIN or InGaAs-PIN photodiode cover a spectral range from 320 to 1000 nm and 900 to 1700 nm, respectively. Due to the sophisticated amplifier design the minimum NEP is just 11 pW/√Hz at a transimpedance of 5 x 103 V/A. This allows for the measurement of optical power levels in the µW range with GHz speed.
Model | HSA-X-S-1G4-SI |
HSPR-X-I-1G4-SI inverting |
HSA-X-S-2G-IN |
HSPR-X-I-2G-IN inverting |
Photodiode | Ø 0.4 mm Si-PIN | Ø 0.4 mm Si-PIN | Ø 0.1 mm InGaAs-PIN | Ø 0.1 mm InGaAs-PIN |
Spectral Range | 320 ... 1000 nm | 320 ... 1000 nm | 900 ... 1700 nm | 900 ... 1700 nm |
Bandwidth (−3 dB) | 10 kHz ... 1.4 GHz | 10 kHz ... 1.4 GHz | 10 kHz ... 2 GHz | 10 kHz ... 2 GHz |
Rise/Fall Time (10 % - 90 %) |
250 ps | 250 ps | 180 ps | 180 ps |
Transimpedance Gain | 5 x 103 V/A |
5 x 103 V/A inverting |
5 x 103 V/A |
5 x 103 V/A inverting |
Conversion Gain |
2.55 x 103 V/W (@ 760 nm) |
2.55 x 103 V/W (@ 760 nm) |
4.75 x 103 V/W (@ 1550 nm) |
4.75 x 103 V/W (@ 1550 nm) |
NEP (@ 100 MHz) |
32 pW/√Hz (@ 760 nm) |
19 pW/√Hz (@ 760 nm) |
16 pW/√Hz (@ 1550 nm) |
11 pW/√Hz (@ 1550 nm) |
Output VSWR | 2.5 : 1 | 1.4 : 1 | 2.5 : 1 | 1.4 : 1 |
Maximum Output Voltage @ 50 Ω | 1.9 VPP | 2.0 VPP | 1.9 VPP | 2.0 VPP |
Output Noise | 3.6 mVRMS | 2.5 mVRMS | 3.6 mVRMS | 2.5 mVRMS |
Available Input Options | Free space (FS) or FC | Free space (FS) or FC | Free space (FS) or FC | Free space (FS) or FC |
Datasheet | 122 kB | 126 kB | 119 kB | 114 kB |
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.
FEMTO is still operational and capable of shipping during this time.
All FEMTO photoreceivers offered with FS input (round flange with 25 mm diameter) are now also available with 1.035″-40 threaded flange (FST) input – for even more flexibility on the optical bench!
FEMTO® Messtechnik GmbH
Klosterstraße 64
10179 Berlin
Germany
Phone: +49-(0)30-280 4711-0
Fax: +49-(0)30-280 4711-11
Email: info@femto.de
© FEMTO 2021