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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.

Inventors:
 [1];  [2]
  1. (Placitas, NM)
  2. (Albuquerque, NM)
Issue Date:
Research Org.:
AT & T CORP
OSTI Identifier:
869070
Patent Number(s):
5270532
Assignee:
United States of America as represented by United States (Washington, DC) SNL
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
traveling-wave; photodetector; combines; absorptive; optical; waveguide; electrical; transmission; line; absorption; results; photocurrent; electrodes; electrically; distributed; designed; achieve; matched; velocities; light; signal; generated; velocity; synchronization; provides; bandwidth; quantum; efficiency; effective; extended; volume; power; dissipation; physical; size; power dissipation; physical size; traveling-wave photodetector; optical absorption; electrical signal; transmission line; signal generated; optical waveguide; quantum efficiency; optical wave; electrical transmission; /250/385/

Citation Formats

Hietala, Vincent M., and Vawter, Gregory A. Traveling-wave photodetector. United States: N. p., 1993. Web.
Hietala, Vincent M., & Vawter, Gregory A. Traveling-wave photodetector. United States.
Hietala, Vincent M., and Vawter, Gregory A. Fri . "Traveling-wave photodetector". United States. https://www.osti.gov/servlets/purl/869070.
@article{osti_869070,
title = {Traveling-wave photodetector},
author = {Hietala, Vincent M. and Vawter, Gregory 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

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