Wavelength-insensitive optical switch based on twist nematic liquid crystal (TNLC)

Kun-Yi Lee; Wei-Yu Lee; Yen Chang Tzeng

doi:10.1117/12.251995

20 September 1996 Wavelength-insensitive optical switch based on twist nematic liquid crystal (TNLC)

Kun-Yi Lee, Wei-Yu Lee, Yen Chang Tzeng

Proceedings Volume 2893, Fiber Optic Components and Optical Communication; (1996) https://doi.org/10.1117/12.251995
Event: Photonics China '96, 1996, Beijing, China

Abstract

We propose a wavelength-insensitive optical switch using twist nematic liquid crystal display (TN-LCD) panel for multi-mode or single-mode fiber communication systems application. Based on the simple and widely used TN-LCD structure, the optical switch has the potential advantages such as inexpensive, simple fabrication processes, and easy mass production. The preferable operating frequency of the device is 0.1 k to 10 k Hz ac wave. The critical and saturated voltage are as low as 3 Vrms and 5.8 Vrms, respectively. The high extinction ratio of 28.3 dB is obtained.

Citation Download Citation

Kun-Yi Lee, Wei-Yu Lee, and Yen Chang Tzeng "Wavelength-insensitive optical switch based on twist nematic liquid crystal (TNLC)", Proc. SPIE 2893, Fiber Optic Components and Optical Communication, (20 September 1996); https://doi.org/10.1117/12.251995

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