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Justerbar förstärkning med Si PD, 200 MHz, Free space

Artikelnr.: OE-300-SI-10-FST

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  • Adjustable transimpedance gain from 102 to 108 V/A
  • Wide bandwidth up to 200 MHz
  • Si models cover the 400 to 1000 nm wavelength range
  • High dynamic input range up to 10 mW optical power
  • Detector size 1 mm dia.
  • Very low noise, NEP down to 76 fW/√Hz
  • Switchable low pass filters for minimizing wideband noise
  • Free space input
  • 1.035"-40 threaded free space input compatible with many optical standard accessories
  • Full manual and remote control capUP TO 10^8 v/aability

up to 10^8 V/A transimpedance, 1 mm detector, down to 76 fW√Hz  input noise


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 fiber optic adapters PRA-FC/SMA.

The switchable gain from 102 to 108 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.



The Si-models are factory equipped with an optical free space input. There is the choice between a 1.035"-40 threaded flange including a coupler ring with 30 mm outer diameter and a 25 mm unthreaded flange. Both types offer a broad compatibility with optical standard accessories like tubes, lenses, cage systems, optical adapters etc. from various manufacturers.
The threaded free space input e.g. can be easily converted to an optical fiber input by screwing a 1.035"-40 externally threaded fiber-adapter to it.

For the InGaAs models there is the choice between a fixed fiber input (FC) model allowing highly accurate fiber optic measurements and a model with free space input (1.035"-40 threaded and 25 mm unthreaded flange available).

All the OE-300 models can be easily mounted to standard M4 and 8-32 UNC threaded optical post holders via the optionally available post holder adapter type PRA-PAP.

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

Modell OE-300-SI-10 OE-300-SI-30 OE-300-IN-01 OE-300-IN-03
Detector Type Si-PIN Si-PIN InGaAs-PIN InGaAs-PIN
Detector size [mm]
1.0 x 1.0 Ø 3.0 Ø 0.08 Ø 0.3
Spectral Range 
400 - 1000 320 - 1000 900 - 1700 800 - 1700

Free space

(fiber adapters available)

Free space

(fiber adapters available)
FC fiber

Free space

NEP (Dependent on Gain Setting) [/√Hz] 76 fW - 322 pW 81 fW - 325 pW 47 fW - 180 pW 52 fW - 192 pW