Monolithic wide wavelength tunable mid-IR laser sources
US9865990B2 · kind B2 · utility
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Key dates
| Filing date | May 20, 2016 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | May 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4043
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of characterizing a monolithic tunable mid-infrared laser including a heterogeneous quantum cascade active region together with a least first and a second tunable integrated distributed feedback gratings, the method including operating the laser while tuning the first grating through its full tuning range, while holding the reflectivity function of the second grating constant, then operating the laser while tuning the second grating through its full tuning range, while holding the reflectivity function of the first grating constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.