O'Connell, D, Morrison, AP, McCarthy, KG, Angove, P, O'Flynn, B;

2007

March

Electronic Letters

Miniature Gain and Bias Control Circuit For Avalanche Photodiodes

Validated

()

43

5

306

307

A feedback control circuit that automatically sets the gain of an avalanche photodiode (APD) is presented. The circuit is implemented on a proprietary 3D programmable modular platform. The APD gain can be set to within 10% of the required gain up to a gain of 45. Results show a steady bias voltage independent of supply fluctuations and excellent repeatability..

DOI 10.1049/el:20073916