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4 March 2019 MEMS swept laser source with enhanced performance
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Proceedings Volume 10931, MOEMS and Miniaturized Systems XVIII; 1093105 (2019)
Event: SPIE OPTO, 2019, San Francisco, California, United States
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.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John O. Gerguis, Yasser M. Sabry, Ahmed M. Hassanen, Haitham Omran, and Diaa Khalil "MEMS swept laser source with enhanced performance", Proc. SPIE 10931, MOEMS and Miniaturized Systems XVIII, 1093105 (4 March 2019);

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