Ultrahigh-frequency light source using dual-wavelength laser with 3-dB beam splitter and method of manufacturing the same
US7174070B2 · kind B2 · utility
5Cited by
3References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 1, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Nov 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/141
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light source has a structure in which a 3-dB beam splitter is integrated with a Febry-Perot laser diode having a cleaved plane. A first waveguide grating and a first refractive index modifier changing a Bragg wavelength of the first waveguide grating are provided at one branch of the 3-dB beam splitter. A second waveguide grating and a second refractive index modifier changing a Bragg wavelength of the second waveguide grating are provided at another branch of the 3-dB beam splitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.