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U.S. Department of Energy
Office of Scientific and Technical Information

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

Patent ·
OSTI ID:870892
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.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
DOE Contract Number:
W-7405-ENG-48
Assignee:
Regents of University of California (Oakland, CA)
Patent Number(s):
US 5617492
Application Number:
08/597331
OSTI ID:
870892
Country of Publication:
United States
Language:
English