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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 28, Iss. 20 — Oct. 15, 2010
  • pp: 2905–2911

A 2$\,\times\,$2 Split Cross-Bar Optical Switch Using a Hybrid Actuation Configuration

Bo-Ting Liao, Bonnie Tingting Chia, Sun-Chih Shih, Kuang-Chao Fan, and Yao-Joe Joseph Yang

Journal of Lightwave Technology, Vol. 28, Issue 20, pp. 2905-2911 (2010)

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In this paper, a 2$\,\times\,$2 split cross-bar optical switch which employs a hybrid actuation configuration is presented. The main advantages of this proposed switch include low actuation voltage, low power consumption, and easy fiber alignment. This optical switch consists of a micromachined micro-mirror structure and a mini-actuator module. The micro-mirror structure, which comprises two movable vertical mirrors with cantilevers, two fixed vertical mirrors, and light-path trenches, is realized by using a simple KOH silicon etching process. The mini-actuator module, which includes two commercially-available electromagnetic bistable actuators attached with L-shaped arms, is used to actuate micro-mirrors. The measured insertion losses of the proposed switch is between ${-}1\hbox{--}-1.2$ dB, the cross-talk is about ${-}60$ dB, and the switching time is less than 13 ms. The long-term reliability test of the SCB switch is performed by continuously actuating the device for 10 000 cycles at 1 Hz, and the deviation of the measured insertion loss is less than 0.05 dB.

© 2010 IEEE

Bo-Ting Liao, Bonnie Tingting Chia, Sun-Chih Shih, Kuang-Chao Fan, and Yao-Joe Joseph Yang, "A 2$\,\times\,$2 Split Cross-Bar Optical Switch Using a Hybrid Actuation Configuration," J. Lightwave Technol. 28, 2905-2911 (2010)

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