Tunable laser with a cascaded filter and comb reflector
US9509119B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2015 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Dec 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3013
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser comprises a gain medium, and a mirror coupled to the gain medium and comprising a coupler coupled to the gain medium, a phase section coupled to the coupler, a bandpass filter coupled to the phase section, and a comb reflector (CR) coupled to the bandpass filter. A laser chip package comprises a substrate, and a laser coupled to the substrate and comprising a filter comprising a first interferometer with a first transmittance, and a second interferometer with a second transmittance, wherein the filter is configured to provide a filter transmittance based on the first transmittance and the second transmittance, and a comb reflector (CR) coupled to the filter and comprising a ring with a circumference, and a refractive index, wherein the CR is configured to provide a CR reflectivity based on the circumference and the refractive index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.