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Conferences > IPR > 1994 > ThF > ThF17

Asymmetric Spot Size Expander for Improved Waveguide to Fiber Coupling

J Buus, D J Robbins, J Haes, K Sato, and R Baets

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Abstract

Improvement of chip to fiber coupling is a major issue for practical applications Of OEICs. We have previously shown that the use of a multimode coupler can significantly improve the coupling efficiency [1,2]. In spite of the potentially very high coupling efficiencies this approach suffers from some drawbacks: the multimode structure requires regrowth and precise alignment; the previous analysis was one dimensional; lateral guiding issues were not addressed, and compatibility with waveguide detectors has not been investigated.

© 1994 Optical Society of America

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