Tracking injection seeding power based on back facet monitoring (BFM) of an injection seeded laser
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United States of America Patent
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May 1, 2012
Grant Date -
Jul 28, 2011
app pub date -
Apr 8, 2011
filing date -
Nov 18, 2009
priority date (Note) -
Expired
status (Latency Note)
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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.
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