Optical nonlinear cross-coupled interferometer and method utilizing same
US4973122A · kind A · utility
25Cited by
21References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 2, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Aug 2, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F3/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical device includes a 50-50 cross-coupler having a pair of ports optically coupled by a waveguide which includes a portion of material having a non-linear refractive index with a relaxation time such that the effect on the non-linear portion of a first pulse passing through the portion last long enough to affect the phase of a second pulse relative to the first. It finds application as a logic element, optical amplifier modulator and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.