Optical device capable of switching output intensity of light of predetermined polarized wave, optical transmitter using the device, network using the transmitter, and method of driving optical device
US6031860A · kind A · utility
25Cited by
8References
40Claims
0Family size
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Key dates
| Filing date | Aug 21, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Aug 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3404
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an optical device having a diffraction grating and at least two surfaces for reflecting light, the oscillation state is switched between a first oscillation state mainly based on resonance by distributed reflection by the diffraction grating, and a second oscillation state mainly based on Fabry-Perot resonance between the two surfaces. The characteristics of one of two modes to be used are improved at the cost of coherence of the other mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.