Photoreceivers

Femtowatt (ultra low noise min. NEP 0.7fW/√Hz), variable gain (10E3 to 10E11 V/W) and fixed gain photoreceivers offer a solution to measuring fast and precise small optical signals. By combining a low noise transimpedance amplifier with a silicon or InGaAs photodiode a broad wavelength range from 190nm up to 1700nm is covered. Ideal for all lab scenarios, fibre alignment, fast power monitoring, testing laser diodes, linearity measurements over 10 decades, and industrial control and aligment are just a few applications.

Variable Gain Photoreceiver Fast Optical Power Meter Series OE-300

Variable-gain photoreceivers based on the DHPCA amplifiers to 200 MHz

Description

The OE-300 photoreceiver consists of a premium quality photodiode followed by a high-end, variable gain transimpedance amplifier. The low noise performance (NEP) is outstanding and sets a benchmark for wideband photoreceivers particularly in the high and mid-range gain settings. The relatively large sized detectors make optical alignment easy and also ensure a very high coupling efficiency when using the Si models together with the optionally available fibre optic adapters PRA-FC/SMA.

The switchable gain from 10^2 to 10^8 V/A (decade increments) allows precise and reliable measurements within a very wide dynamic range from nanowatts up to 10 milliwatts optical power.

Many additional features like switchable low-pass filters, offset adjustment, switchable AC/DC coupling and the capability of manual and opto-isolated remote control by a PC make the OE-300 the most versatile wideband photoreceiver in its class.

Applications:

All purpose low-noise photoreceiver (O/E converter) for the MHz range
Time resolved optical pulse and power measurements
Laser intensity noise measurements (RIN)
Optical front-end for oscilloscopes, spectrum analyzers, A/D converters and RF lock-in amplifiers.