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Mode-expanded semiconductor laser with tapered-rib adiabatic-following fiber coupler

Conference ·
OSTI ID:414406

Expanded-mode semiconductor lasers are of great interest due to the benefits of reduced far-field divergence and improved coupling efficiency to optical fiber. The authors present a new diode laser using a Tapered-Rib Adiabatic-Following Fiber Coupler (TRAFFiC) to achieve 2D mode expansion without epitaxial regrowth or sharply-defined tips on tapered waveguides. The expanded mode size would allow 0.25 to 1 dB coupling loss to standard telecommunications fiber making smaller-core specialty fibers unnecessary, increasing misalignment tolerance, and eliminating the need for coupling optics.

Research Organization:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Financial Management and Controller, Washington, DC (United States)
DOE Contract Number:
AC04-94AL85000
OSTI ID:
414406
Report Number(s):
SAND--96-2702C; CONF-961113--4; ON: DE97001442
Country of Publication:
United States
Language:
English

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