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  • Journal of Lightwave Technology
  • Vol. 21,
  • Issue 12,
  • pp. 3392-
  • (2003)

Rigorous Beam Propagation Analysis of Tapered Spot-Size Converters in Deep-Etched Semiconductor Waveguides

B. M. A. Rahman, W. Boonthittanont, S. S. A. Obayya, T. Wongcharoen, E. O. Ladele, and K. T. V. Grattan

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Abstract

A rigorous study of a tapered spot-size converter in a deep-etched GaAs/AlGaAs optical modulator is reported through the use of full vectorial approaches. Mode beating in the tapered section, the expansion of the spot-size,and the consequent enhancement of the coupling to an optical fiber are also reported.

© 2003 IEEE

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