U.S. Department of EnergyOffice of Scientific and Technical Information
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:
-
- Placitas, NM
- Albuquerque, NM
- Publication Date:
- Research Org.:
- AT&T
- OSTI Identifier:
- 869070
- Patent Number(s):
- US 5270532
- Assignee:
- United States of America as represented by United States (Washington, DC)
- 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. 1993.
"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 = {},
url = {https://www.osti.gov/biblio/869070},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}