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MEMS swept laser source with enhanced performance
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Paper Abstract

In this work we present a deeply-etched MEMS based swept ring laser source with enhanced performance. Performance enhancement is enabled by lensing the single mode (SM) input/output fibers of the MEMS tunable filter. An experimental comparison between the performance using graded-index (GRIN) lensed fibers and cleaved SM fibers in the MEMS-based swept laser system is presented. The GRIN lensed fiber produces a minimum waist radius of about 11.8 μm at 1550 nm, compared to 5 μm for the cleaved fiber. The experimental results show that the insertion loss of the MEMS filter is improved from -11.4 dB to -6.3 dB, while the filter 3-dB linewidth is improved from 9 nm to 5 nm when using the GRIN lensed-fibers. The corresponding threshold current of the swept laser is reduced from 70 mA to 52 mA and the output power is increased by 7.5 dB.

Paper Details

Date Published: 4 March 2019
PDF: 8 pages
Proc. SPIE 10931, MOEMS and Miniaturized Systems XVIII, 1093105 (4 March 2019); doi: 10.1117/12.2509897
Show Author Affiliations
John O. Gerguis, Ain Shams Univ. (Egypt)
Yasser M. Sabry, Ain Shams Univ. (Egypt)
Si-Ware Systems (Egypt)
Ahmed M. Hassanen, Ain Shams Univ. (Egypt)
Haitham Omran, The German Univ. in Cairo (Egypt)
Diaa Khalil, Ain Shams Univ. (Egypt)
Si-Ware Systems (Egypt)

Published in SPIE Proceedings Vol. 10931:
MOEMS and Miniaturized Systems XVIII
Wibool Piyawattanametha; Yong-Hwa Park; Hans Zappe, Editor(s)

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