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:
- Issue Date:
- OSTI Identifier:
- 5443001
- Patent Number(s):
- 5270532
- 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}
}