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Two-dimensional waveguide modeling of leaky-mode arrays

Journal Article · · Opt. Lett.; (United States)
DOI:https://doi.org/10.1364/OL.14.000859· OSTI ID:5911099

We examine the structure and modal gains of the leaky modes of an infinite periodic index-guided array by direct solution of the two-dimensional Helmholtz equation. These findings serve to validate the physical insights suggested by our previous calculations based on the effective-index method and, in particular, confirm the concept of guide-width tailoring for affecting fundamental-mode operation of these devices at high-power levels. Our newer model also provides new insights into the mode-selection mechanism and demonstrates clearly the necessity of a full two-dimensional treatment if one is to describe the mode profiles or their relative gains accurately.

Research Organization:
Division 1124, Sandia National Laboratories, Albuquerque, New Mexico (US)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
5911099
Journal Information:
Opt. Lett.; (United States), Journal Name: Opt. Lett.; (United States) Vol. 14:16; ISSN OPLED
Country of Publication:
United States
Language:
English

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