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http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-12
filingDate 1986-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date>
grantDate 1988-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ac67bfe585410ad72a08e6a0b63c553
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_057313a9d33c004c6ec1c27bf7ad1ef6
publicationDate 1988-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber US-4740987-A
titleOfInvention Distributed-feedback laser having enhanced mode selectivity
abstract A distributed-feedback laser includes in its grating a localized phase-slip discontinuity which is placed off-center. Such discontinuity results in a quarter-wave phase slip, and it can be placed, e.g., such as to maximize the difference between threshold gain of the lowest-lasing mode and cavity loss of the next-to-lowest-lasing mode. The invention is applicable especially where laser output intensity differs at two output facets and results in enhanced mode selectivity during laser operation.
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Total number of triples: 56.