Planar optical logic
Patent
·
OSTI ID:5759702
This patent describes an optically controlled semiconductor laser for performing digital logic functions, comprising: (a) a material dependent index guided single mode laser diode device including a lasing cavity having a longitudinal axis and refractive index variations that support only a single mode of operation, the laser device generating laser media within the cavity in a direction parallel with the axis; and (b) means for optically coupling light into the lasing cavity at an angle greater than the numerical aperture of the laser device, the coupled light interacts with the laser media within a region of the laser cavity and introduces a pertubation in the form of a non-uniformity within the waveguide laser cavity thereby quenching the output to alter the output of the laser device, whereby input of the coupled light enables the laser device to perform logic functions.
- Assignee:
- Director, National Security Agency, Ft. George Meade, MD
- Patent Number(s):
- US 4825442
- OSTI ID:
- 5759702
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mode characteristics of large-optical-cavity v-channeled substrate inner stripe injection lasers
An investigation of the frequency stability and temperature characteristics of 1. 5. mu. m coupled-cavity injection lasers
Optoelectronic logic operations by cleaved-coupled-cavity semiconductor lasers
Journal Article
·
Sat Oct 01 00:00:00 EDT 1983
· IEEE J. Quant. Electron.; (United States)
·
OSTI ID:5029344
An investigation of the frequency stability and temperature characteristics of 1. 5. mu. m coupled-cavity injection lasers
Journal Article
·
Sat Mar 31 23:00:00 EST 1984
· IEEE J. Quant. Electron.; (United States)
·
OSTI ID:6185778
Optoelectronic logic operations by cleaved-coupled-cavity semiconductor lasers
Journal Article
·
Mon Oct 31 23:00:00 EST 1983
· IEEE J. Quant. Electron.; (United States)
·
OSTI ID:6693185
Related Subjects
42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DIGITAL SYSTEMS
ELECTRONIC CIRCUITS
LASER CAVITIES
LASERS
LOGIC CIRCUITS
OPERATION
OPTICAL SYSTEMS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS
420300* -- Engineering-- Lasers-- (-1989)
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DIGITAL SYSTEMS
ELECTRONIC CIRCUITS
LASER CAVITIES
LASERS
LOGIC CIRCUITS
OPERATION
OPTICAL SYSTEMS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS