High Sensitivity Detector Unit K E Y S P E C I F I C AT I O N S ■ High Speed Response: 3 dB Bandwidth 5 MHz to 1 GHz ■ Spectral Range APD210: 400 -1000 nm ■ Spectral Range APD310: 850 -1650 nm ■ Temperature Compensated Gain for 10°C to 40°C Ambient Temperature A P P L I C AT I O N S ■ Fast Laser Pulses ■ Ultra Low Light Level Signals ■ Beat Signal of Low Level Inputs F E AT U R E S For applications that require highest sensitivity, the APD avalanche photodiodes can provide an extremely sensitive alternative to traditional PIN photodiodes. The APD is sensitive and fast enough for the characterization of, for example, pulsed solid-state lasers on the nanosecond time scale. It maintains high gain stability over the 10°C to 40°C temperature range by utilizing a temperature compensation circuit, which adjusts the ~150 V DC bias to ensure operation near the breakdown voltage. Time Characteristics Signal [norm.] Signal [norm.] Amplifier ■ Continously Adjustable Gain Setting ■ Long Term Field Tested in our FC8004 and FC1500 Optical Frequency Synthesizer Pulse Response APD310 to a sub-250 fs Pulse Train at 1560 nm Time Characteristics ture Compensated Setup ■ Integrated Radio Frequency Pulse Response APD210 to a sub-250 fs Pulse Train at 780 nm ■ Avalanche Photodiode Tempera-

High Sensitivity Detector Unit S P E C I F I C AT I O N S Detector Type Optical Input* Max. Incident Power** Operating Temperature Spectral Range Detector Diameter Frequency Range 3 dB Bandwidth Rise Time Maximum Gain*** Dark State Noise Level NEP (calculated) Output Coupling Output Impedance Signal Output Output Connectors Supply Voltage**** Current Consumption * With adaptor for Thorlabs SM05 series. ** Equals optical damage threshold. ***Gain adjustable via pushbuttons. ****Power supply included, with adaptors for EU/USA, please ask for different types. MECHANICAL OUTLINE O R D E R I N G I...