A tunable Fabry-Perot (F-P) filter by using electro-optic polymer film is proposed. The electro-optic polymer is alkoxysilane dye (ASD)/SiO2-TiO2 hybrid material, whose electro-optic coefficient ?_(33) is about 5 pm/V. The wavelength tuning range of 3.8 nm under 400-V DC voltage and the nonlinear characteristic with the electric field have been obtained via electro-optical properties of polymer. Both of polymer film fabrication and F-P filter designhave been introduced. The tunable F-P filter is designed for the application of two-input/two-output port wavelength-selective optical switch. Also, some problems have been discussed in this letter.
© 2005 Chinese Optics Letters
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(230.2090) Optical devices : Electro-optical devices
(250.2080) Optoelectronics : Polymer active devices
Xinwan Li, Ailun Ye, Jianping Chen, and Guiling Wu, "A 2 by 2 wavelength tunable Fabry-Perot filter by using an electro-optic polymer film," Chin. Opt. Lett. 2, 624-626 (2004)