Photodiode detector with selective frequency response

US3955082A · kind A · utility

Assignee

• Northern Electric Company Limited · CA

Inventor

• John C. Dyment · Gatineau, CA

Key dates

• Filing date: Sep 19, 1974
• Grant date: May 4, 1976
• Expiry date: Sep 19, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S148/099

Abstract

A photodiode detector comprises a substrate on which a plurality of detector sections are formed, in series. Reverse bias is applied to the separate sections, the bias more negative for each section from the input end. The absorption bandwidth for each section can vary and the bandwidth of a section can be variable.