APD bias circuit

Year	Description
2000	Invention patented by Hisaya Sakamoto, Tetsuya Kiyonaga, Takashi Kurooka, Akimitsu Miyazaki, and Nobuaki Sato on February 17th, 2000. Abstract: An APD bias circuit includes an APD, an equalizer amplifier receiving an output signal of the APD, and first, second and third resistors connected in series to the APD to which a bias voltage is applied therethrough. A bias control circuit is connected to a first node between the first and second resistors, and receives a current from the first node so that a voltage of the first node can be maintained at a constant level. A first capacitor is connected between a ground and a second node between the second and third resistors. A second capacitor is connected between the ground and a third node between the third resistor and the APD. A first time constant defined by the second resistor and the first capacitor is greater than a second time constant defined by the third resistor and the second capacitor.
Source: selected by the editor from original sources.

Invention: APD bias circuit