Semiconductor Waveguides with High Coupling Efficiency for Single-Mode Optical Fibers

Hiroshi NAKAMOTO  Masaaki MATSUURA  Fumihiko ITO  Tadatoshi TANIFUJI  

IEICE TRANSACTIONS (1976-1990)   Vol.E70    No.4    pp.264-266
Publication Date: 1987/04/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: Special Section LETTER (Special Issue: Papers from 1987 National Convention IEICE)
Category: Optoelectronics

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Buried heterostructure waveguides with high coupling efficiency for dual shaped core fiber with zero dispersion at 1.55 µm are described. Calculations reveal that the mode mismatch loss of 0.35 dB with mode confinement coefficient of 0.6 can been achieved for dual shaped core single-mode fibers. While, for conventional single-mode fibers, mode mismatch loss becomes large.