In this paper, a novel surface and bulk hybrid micromachining process for fabricating a 16×16 electrostatically-actuated MEMS-based optical switch is introduced. The fabrication enhances the capabilities of rotation type of micromirrors by enlarging their rotation angle to 90 degrees, which will provide a wide variety of possible mechanical designs for many optical applications such as scanners and filters, especially those requiring large angular adjustment. Furthermore, monolithic integration of fiber grooves and micromirrors are achieved by utilizing accurate photolithography and etching techniques. The fabricated 2-μm-thick polysilicon mirrors are able to rotate inward by 90 degrees to a vertical position when the applied voltage reaches the pull-in value of 208 V. Under the shortest optical path in the 16×16 switch array, the average and worst-case measurement values of fiber-mirror-fiber insertion loss are 2.27 dB and 2.48 dB, respectively. A fatigue test turns out to show that the micromirrors and torsion beams are quite durable to endure more than 1.368×102 billion cycle-tilting movement.
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2007 First International Conference on Integration and Commercialization of Micro and Nanosystems
January 10–13, 2007
Sanya, Hainan, China
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4265-7
PROCEEDINGS PAPER
The Fabrication of 16*16 MEMS-Based Optical Switch With Accurate Optical Fiber Grooves Integration
Qinghua Chen,
Qinghua Chen
Peking University, Beijing, China
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Guizhen Yan,
Guizhen Yan
Peking University, Beijing, China
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Yilong Hao
Yilong Hao
Peking University, Beijing, China
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Qinghua Chen
Peking University, Beijing, China
Wengang Wu
Peking University, Beijing, China
Guizhen Yan
Peking University, Beijing, China
Yilong Hao
Peking University, Beijing, China
Paper No:
MNC2007-21178, pp. 409-414; 6 pages
Published Online:
June 8, 2009
Citation
Chen, Q, Wu, W, Yan, G, & Hao, Y. "The Fabrication of 16*16 MEMS-Based Optical Switch With Accurate Optical Fiber Grooves Integration." Proceedings of the 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems. First International Conference on Integration and Commercialization of Micro and Nanosystems, Parts A and B. Sanya, Hainan, China. January 10–13, 2007. pp. 409-414. ASME. https://doi.org/10.1115/MNC2007-21178
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