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APD modules are high-sensitivity photodetectors that integrate an APD (avalanche photodiode), a temperature-compensation bias circuit (or temperature control circuit), and a current-to-voltage converter. Operating an APD module is easy since it works by simply supplying a DC voltage from an external source. The current-to-voltage converter uses high-speed, low-noise bipolar transistors and op amps optimally configured for signal readout from the APD. These APD modules also include a voltage controller with low ripple noise to detect light with high sensitivity.

APD modules contain a short wavelength or near infrared type Si APD. A temperature-compensation type with stabilized gain and a thermoelectrically cooled type are provided.Temperature-compensation APD modules keep the APD gain nearly constant using the high-precision temperature-compensation circuit. Thermoelectrically cooled APD modules maintain a stable gain by controlling the APD temperature at a constant

8 items found

 Type No.Product NameTypeEffective photosensitive areaLow Band Cut-off Frequency (typ.)High Band Cut-off Frequency (typ.)Photoelectric sensitivity (typ.)
C10508-01 APD module High-stability type φ1.0 mm DC MHz 10 MHz 1.25 × 107 V/W
C12702-03,C12702-04,etc APD module Near infrared type φ1.0 mm 0.0040 MHz 100 MHz -6.8 × 104 V/W
C12702-03,C12702-04,etc APD module Near infrared type φ3.0 mm 0.0040 MHz 80 MHz -2.30 × 104 V/W
C12702-03,C12702-04,etc APD module Short wavelength type φ1.0 mm 0.0040 MHz 100 MHz -2.5 × 104 V/W
C12702-03,C12702-04,etc APD module Short wavelength type φ3.0 mm 0.0040 MHz 40 MHz -1.9 × 104 V/W
C12703,C12703-01 APD module High-sensitivity type φ1.5 mm DC MHz 10 MHz 1.50 × 106 V/W
C12703,C12703-01 APD module High-sensitivity type φ3.0 mm DC MHz 0.1 MHz -1.50 × 108 V/W
C5658 APD module High-speed type φ0.5 mm 0.05 MHz 1000 MHz 2.50 × 105 V/W

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