Arrangement for evaluating an optical beam

US4467276A · kind A · utility

Assignee

• Licentia Patent-Verwaltungs-GmbH · DE

Inventors

• Peter Marten · Heidelberg, DE
• Edgar Weidel · Senden, DE

Key dates

• Filing date: Apr 7, 1982
• Grant date: Aug 21, 1984
• Expiry date: Apr 7, 2002

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R23/17
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A high-resolution Bragg-cell receiver for monitoring and/or analyzing the frequency of RF signals comprises a lightwave guide arrangement with discrete photodiodes coupled thereto which is substituted for a photodiode array. The guide has closely spaced inlets for light from the Bragg-cell and fanned-out outlets for coupling to the discrete photodiodes.