The Femto 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.

FEATURES

  • Adjustable conversion gain from 10^3 to 10^11 V/W

  • Operating range from fW to mW

  • Spectral range from 190 to 1700 nm

  • NEP down to 6 fW/√Hz

  • Bandwidth up to 500 kHz

  • Rise time down to 700 ns

  • Fiber optic or free space input

  • Calibration for all fiber optic models

  • Manual and remote control

SENSITIVITY MEETS VERSATILITY

WIDE BANDWIDTH FOR FAST MEASUREMENT SPEED

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.

FAST FIBER OPTIC POWER METER WITH CALIBRATION

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.

APPLICATIONS

  • All purpose lab photoreceiver

  • Fiber alignment systems

  • Fast power monitoring

  • Test of laser diode to fiber coupling

  • Linearity measurements over 10 decades

  • Calibration of optical communication systems

  • Time-resolved pulse and power measurements

  • Industrial control and alignment systems

Model OE-200-SI OE-200-UV OE-200-IN1 OE-200-IN2
Detector Type Si PIN Si PIN InGaAs PIN InGaAs PIN
Detector Size [mm] Ø 1.2 1.1 x 1.1 Ø 0.3(FC: Ø 0.08) Ø 0.3(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 790 kB 676 kB 656 kB 535 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

Accuracy Performance

±1 % electrical, ±5 % electro-optical for fiber optic models, ±15 % electro optical for free space models,
calibration for all fiber optic 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.