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18 October 2001 WDM micromachined tunable laser
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Proceedings Volume 4582, Optical Switching and Optical Interconnection; (2001)
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China
An integrated MEMS tunable laser of approximately 2 mm X 1.5 mm size is demonstrated in this paper. The tunable laser is formed by the integration of a surface-micromachined 3D micromirror with a Fabry-Perot laser diode and an optical fiber. The micromirror can be driven to translate by a comb drive to change the external cavity length of laser diode, enabling the wavelength tuning. A tunable range of 16 nm is obtained, which covers 20 channels of WDM systems spaced by 100GHz. The three-mirror Fabry-Perot cavity model is modified to explain the continuous wavelength change as well as the mode hopping. An array of the tunable laser is potential to supply light sources for multiple channels of WDM systems.
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Xu Ming Zhang, Ai Qun Liu, Chao Lu, and Ding Yuan Tang "WDM micromachined tunable laser", Proc. SPIE 4582, Optical Switching and Optical Interconnection, (18 October 2001);

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