Widely tunable semiconductor lasers with three interferometric arms | Zendy

Guan-Lin Su | Zendy; Ming C. Wu | Zendy

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Widely tunable semiconductor lasers with three interferometric arms

Author(s) -

Guan-Lin Su,

Ming C. Wu

Publication year - 2017

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.25.021400

Subject(s) - optics , semiconductor laser theory , lasing threshold , laser , interferometry , tunable laser , optoelectronics , interference (communication) , semiconductor , materials science , physics , telecommunications , computer science , channel (broadcasting)

We present a comprehensive study for a new three-branch widely tunable semiconductor laser based on a self-imaging, lossless multi-mode interference (MMI) coupler. We have developed a general theoretical framework that is applicable to all types of interferometric lasers. Our analysis showed that the three-branch laser offers high side-mode suppression ratios (SMSRs) while maintaining a wide tuning range and a low threshold modal gain of the lasing mode. We also present the design rules for tuning over the dense-wavelength division multiplexing grid over the C-band.

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