Tracking injection seeding power based on back facet monitoring (BFM) of an injection seeded laser
US7940822B1 · kind B1 · utility
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Key dates
| Filing date | Nov 18, 2009 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Nov 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06804
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of estimating an injection power of seed light injected into an injection-seeded transmitter. A back face monitoring (BFM) response of the injection-seeded transmitter is determined, and data representative of the BFM response stored in a memory. During run-time, a controller of the injection-seeded transmitter, detects a temperature of the injection-seeded transmitter and an instantaneous BFM current. BFM response data is obtained from the memory based on the detected temperature, and the seed light injection power estimated based on the obtained data and the detected instantaneous BFM current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.