Vertical cavity surface emitting laser using photonic crystals
US6829281B2 · kind B2 · utility
34Cited by
18References
27Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 19, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Jun 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A vertical cavity surface emitting laser (VCSEL) using photonic crystals. Photonic crystals are formed such that the active region of the VCSEL is bounded by the photonic crystals. The photonic crystals have a periodic cavity structure that reflects light of certain wavelengths through the active region of the VCSEL such that laser light at the wavelengths is generated. Additional photonic crystals can be formed to increase the bandwidth of the VCSEL. The photonic crystals can also be combined with distributed bragg reflector layers to form the mirrors of a VCSEL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.