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Title: Fiber optic coupling of a microlens conditioned, stacked semiconductor laser diode array

The output radiation from the two-dimensional aperture of a semiconductor laser diode array is efficiently coupled into an optical fiber. The two-dimensional aperture is formed by stacking individual laser diode bars on top of another in a "rack and stack" configuration. Coupling into the fiber is then accomplished using individual microlenses to condition the output radiation of the laser diode bars. A lens that matches the divergence properties and wavefront characteristics of the laser light to the fiber optic is used to focus this conditioned radiation into the fiber.
Inventors:
 [1];  [1];  [2]
  1. (Livermore, CA)
  2. (Antioch, CA)
Issue Date:
OSTI Identifier:
870892
Assignee:
Regents of University of California (Oakland, CA) LLNL
Patent Number(s):
US 5617492
Application Number:
08/597331
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
fiber; optic; coupling; microlens; conditioned; stacked; semiconductor; laser; diode; array; output; radiation; two-dimensional; aperture; efficiently; coupled; optical; formed; stacking; individual; bars; top; rack; stack; configuration; accomplished; microlenses; condition; lens; matches; divergence; properties; wavefront; characteristics; light; focus; output radiation; diode bars; diode bar; semiconductor laser; fiber optic; optical fiber; laser light; laser diode; diode array; efficiently coupled; optic coupling; two-dimensional aperture; individual laser; /385/