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Title: Unidirectional ring lasers

Unidirectional ring lasers formed by integrating nonreciprocal optical elements into the resonant ring cavity. These optical elements either attenuate light traveling in a nonpreferred direction or amplify light traveling in a preferred direction. In one preferred embodiment the resonant cavity takes the form of a circle with an S-shaped crossover waveguide connected to two points on the interior of the cavity such that light traveling in a nonpreferred direction is diverted from the cavity into the crossover waveguide and reinjected out of the other end of the crossover waveguide into the cavity as light traveling in the preferred direction.
Authors:
 [1] ;  [1]
  1. (Albuquerque, NM)
Publication Date:
OSTI Identifier:
869513
Report Number(s):
US 5349601
DOE Contract Number:
AC04-76DP00789
Resource Type:
Patent
Research Org:
AT & T CORP
Country of Publication:
United States
Language:
English
Subject:
unidirectional; lasers; formed; integrating; nonreciprocal; optical; elements; resonant; cavity; attenuate; light; traveling; nonpreferred; direction; amplify; preferred; embodiment; takes; form; circle; s-shaped; crossover; waveguide; connected; interior; diverted; reinjected; light traveling; optical element; optical elements; preferred embodiment; resonant cavity; preferred direction; reciprocal optical; /372/385/