Traveling-wave photodetector
- Placitas, NM
- Albuquerque, NM
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.
- Research Organization:
- AT & T CORP
- DOE Contract Number:
- AC04-76DP00789
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 5270532
- OSTI ID:
- 869070
- Country of Publication:
- United States
- Language:
- English
Similar Records
Traveling-wave photodetector for 1.55 {mu}m wavelength fabricated with unitraveling-carrier photodiodes
A new ultrafast photodetector: Optical-to-microwave transformer
Related Subjects
absorption
absorptive
achieve
bandwidth
combines
designed
dissipation
distributed
effective
efficiency
electrical
electrical signal
electrical transmission
electrically
electrodes
extended
generated
light
line
matched
optical
optical absorption
optical wave
optical waveguide
photocurrent
photodetector
physical
physical size
power
power dissipation
provides
quantum
quantum efficiency
results
signal
signal generated
size
synchronization
transmission
transmission line
traveling-wave
traveling-wave photodetector
velocities
velocity
volume
waveguide