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Analysis of a laser phased array using a distributed Y-junction analog

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1 Author(s)
Chinn, S.R. ; Gen. Electr. Co., Syracuse, NY, USA

An analysis is presented of a semiconductor-laser linear phased array which uses a distributed, evanescent-coupled version of Y-junction branches to achieve mode discrimination. As in the Y-junction array, the in-phase fundamental mode has the inherently highest round-trip gain. The advantage of easier mask generation and fabrication for the distributed coupler is offset by its poorer discrimination against higher order modes

Published in:

Quantum Electronics, IEEE Journal of  (Volume:24 ,  Issue: 4 )