The OE-200 series of variable gain photoreceivers is designed for a great variety of applications requiring the fast and precise measurement of small optical signals. By combining a low noise transimpedance amplifier with a silicon or InGaAs photodiode a broad wavelength range from 190 nm up to 1700 nm is covered. The integrated amplifier offers adjustable gain from 103 to 1011 V/W and thus allows the measurement over a wide dynamic range from ca. 100 fW up to 2 mW optical input power. Its high sensitivity is achieved by a low noise design resulting in a noise equivalent power (NEP) of minimum 6 fW/√Hz. Many additional features like switchable signal filters, an offset adjustment and the capability of manual and opto-isolated remote control by a PC make the OE-200 the most versatile photoreceiver in its class.
In addition to its high sensitivity the OE-200 also offers a fast signal response. With its maximum bandwidth of 500 kHz it is ideally suited for time resolved measurements with a signal rise time down to 700 ns. Industrial process control, automated measurement systems and fast opto electronic control loops are just a few of the many applications that can profit from a fast optical front-end realized by the OE-200.
The high precision and low drift of the OE-200 ensure repeatable and consistent measurements also in the highest gain setting. All models with fiber optic input come with an optical calibration for reliable and accurate results. Thus the OE-200 can be also used as precise and fast power meter with a high bandwidth of up to 500 kHz and a wide dynamic range of up to 100 dB.
|Detector Type||Si PIN||Si PIN||InGaAs PIN||InGaAs PIN|
|Detector Size [mm]||Ø 1.2||1.1 x 1.1||
(FC: Ø 0.08)
(FC: Ø 0.08)
|Spectral Range [nm]||320 - 1060||190 - 1000||900 - 1700||900 - 1700|
|Calibration Wavelength [nm]||850||850||1310||1550|
|Input||Free space, FC||Free space, FC||Free space, FC||Free space, FC|
|NEP (Dependent on Gain Setting) [/√Hz]||8 fW - 33 pW||17 fW - 60 pW||7 fW - 22 pW||6 fW - 22 pW|
|Useful Operating Range||ca. 100 fW - 2 mW||ca. 200 fW - 2 mW||ca. 100 fW - 2 mW||ca. 100 fW - 2 mW|
|Datasheet||186 kB||189 kB||187 kB||186 kB|
The Following Characteristics Are Valid For All Models:
|Performance Range||Low Noise||High Speed|
|Conversion Gain [V/W]||103||104||105||106||107||108||109||105||106||107||108||109||1010||1011|
|Bandwidth (-3 dB) [kHz]||500||500||400||200||50||7||1.1||500||500||400||200||50||7||1.1|
|Rise Time (10%-90%)||700 ns||700 ns||900 ns||1.8 µs||7 µs||50 µs||300 µs||700 ns||700 ns||900 ns||1.8 µs||7 µs||50 µs||300 µs|
±1 % electrical, ±5 % electro-optical for fiber optic models, ±15 % electro optical for free space models,
|Low Pass Filter||Switchable to 10 Hz|
|Output Performance||±10 V (@ ≥100 kΩ load)|
|Power Supply||±15 V, +110 mA/−80 mA typ., ±200 mA recommended|
|Control Interface||5 opto-isolated digital inputs, TTL/CMOS compatible, analog offset control voltage input|
|Case||170 x 60 x 45 mm (L x W x H), Weight 320 g (0.74 lb.)|
Offset adjustable by trimpot or external control voltage. LED overload indication. Output short-circuit protected. Power supply 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.
The photoreceiver series HSA-X-S was broadened by two models featuring an improvement in noise performance of up to 40%. The output reflection coefficient was reduced by 8 dB at the same time.
FEMTO® Messtechnik GmbH
Phone: +49-(0)30-280 4711-0
Fax: +49-(0)30-280 4711-11
© FEMTO 2016