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Title: Traveling-wave photodetector

Abstract

The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a photocurrent at the electrodes of the electrical transmission line. The optical waveguide and electrical transmission line of the electrically distributed traveling-wave photodetector are designed to achieve matched velocities between the light in the optical waveguide and electrical signal generated on the transmission line. This velocity synchronization provides the traveling-wave photodetector with a large electrical bandwidth and a high quantum efficiency, because of the effective extended volume for optical absorption. The traveling-wave photodetector also provides large power dissipation, because of its large physical size. 4 figures.

Inventors:
;
Publication Date:
OSTI Identifier:
5443001
Patent Number(s):
US 5270532; A
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Patent File Date: 15 Jun 1992
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; PHOTODETECTORS; DESIGN; ABSORPTION; OPERATION; VISIBLE RADIATION; WAVEGUIDES; ELECTROMAGNETIC RADIATION; RADIATIONS; SORPTION; 440600* - Optical Instrumentation- (1990-)

Citation Formats

Hietala, V M, and Vawter, G A. Traveling-wave photodetector. United States: N. p., 1993. Web.
Hietala, V M, & Vawter, G A. Traveling-wave photodetector. United States.
Hietala, V M, and Vawter, G A. Tue . "Traveling-wave photodetector". United States.
@article{osti_5443001,
title = {Traveling-wave photodetector},
author = {Hietala, V M and Vawter, G A},
abstractNote = {The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a photocurrent at the electrodes of the electrical transmission line. The optical waveguide and electrical transmission line of the electrically distributed traveling-wave photodetector are designed to achieve matched velocities between the light in the optical waveguide and electrical signal generated on the transmission line. This velocity synchronization provides the traveling-wave photodetector with a large electrical bandwidth and a high quantum efficiency, because of the effective extended volume for optical absorption. The traveling-wave photodetector also provides large power dissipation, because of its large physical size. 4 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {12}
}