Integrated pump laser and rare earth waveguide amplifier
US8559097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2010 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | May 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light amplifier includes a single crystal semiconductor substrate with a rare earth oxide, light amplifying gain medium deposited on the substrate and formed into a light waveguide, and a pump laser. A lattice matching virtual substrate integrates the pump laser to the gain medium with a first opposed surface crystal lattice matched to the gain medium and second opposed surface crystal lattice matched to the pump laser. The pump laser is positioned with a light output surface coupled to a light input surface of the gain medium so as to introduce pump energy into the light waveguide. The light amplifier has a very small footprint and allows the integration of control and monitoring electronics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.