Mr. Jing Liu Profile

Jing Liu

Student at Univ of Maryland College Park

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Proceedings Article | 21 January 2003 Paper

SOI/DRIE all-fiber optical switch for high-power applications

Jing Liu, Lawrence Fan, Don DeVoe

Proceedings Volume 4983, (2003) https://doi.org/10.1117/12.477928

KEYWORDS: Optical fibers, Optical switching, Actuators, Switches, Microactuators, Silicon, Epoxies, Optical alignment, Optics manufacturing, Deep reactive ion etching

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An all-fiber optical switch based on silicon on insulator (SOI) and deep reactive-ion etching (DRIE) technology has been developed. The novel switch is designed for applications requiring high optical power transfer, such as routing in optical energy conversion and transfer systems, while requiring low electrical power for switch actuation. The optical switch was realized by attaching a short optical fiber segment to a large-displacement microactuator, suspended between fixed input and output optical fibers. When the fibers are coaxially aligned, optical transfer is achieved between the fixed input and output fibers. The present work offers the potential for low electrical power operation, high-density array fabrication, fully-integrated manufacturing, and decoupled electromechanical/optical performance. The device concept and fabrication process is described, and optical transfer efficiency results are discussed. Current switches employ integrated electrothermal actuators to move the intermediate optical fiber segment, and switches based on lower-power electrostatic actuators will also be described.

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