Post holder and post not included
By combining state of the art photodiodes with the proven and outstanding FEMTO LCA Current Amplifier technology we designed a new family of photoreceivers with a remarkable performance. The LCA-S-400K is available with either a large area Si or InGaAs photodiode covering a spectral range from 400 to 1100 nm and 900 to 1700 nm, respectively. The amplifier transimpedance is 107 V/A resulting in a maximum conversion gain of 9.5 x 106 V/W at 1550 nm for the InGaAs model.
Due to the low noise performance of the transimpedance amplifier the minimum NEP is as low as 75 fW/√Hz which allows for detection of optical signals in the nanoWatt range without further averaging.
Model | LCA-S-400K-SI | LCA-S-400K-IN |
Photodiode | 3.0 mm Ø Si PIN | 0.5 mm Ø InGaAs PIN |
Spectral Range | 400 ... 1100 nm | 900 ... 1700 nm |
Bandwidth (-3 dB) | DC ... 400 kHz | DC ... 400 kHz |
Rise/Fall Time (10% - 90%) |
1 µs | 1 µs |
Transimpedance Gain | 1 x 107 V/A | 1 x 107 V/A |
Max. Conversion Gain | 6.2 x 106 V/W (@ 900 nm) | 9.5 x 106 V/W (@ 1550 nm) |
Min NEP (@ 10 kHz) | 130 fW/√Hz (@ 900 nm) | 75 fW/√Hz (@ 1550 nm) |
Datasheet |
191 kB | 176 kB |
Output voltage ±10 V max (@ 1 MΩ load). Offset adjustable by trimpot. Units with fiber optic input or AC coupling are optionally available. 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