Title :
Low crosstalk 1/spl times/2 thermooptic digital optical switch with integrated S-bend attenuator
Author :
Jiang, Xiaoqing ; Qi, Wei ; Zhang, Hao ; Tang, Yi ; Hao, Yinlei ; Yang, Jianyi ; Wang, Minghua
Author_Institution :
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou
Abstract :
We propose and demonstrate a 1times2 thermooptic digital optical switch with variable optical attenuators that are integrated with the S-bend waveguides connecting the output of the Y-switch with a standard fiber array. With a total heating power of 140 mW applied to the switch, we have achieved less than -42-dB optical crosstalk. The wavelength response of the switch is flat across the entire C-band. The average polarization-dependent loss of the switch is about 0.49 dB
Keywords :
integrated optics; optical attenuators; optical crosstalk; optical design techniques; optical losses; optical switches; optical waveguides; thermo-optical devices; waveguide discontinuities; 140 mW; S-bend waveguides; Y-switch; integrated S-bend attenuator; optical crosstalk; polarization-dependent loss; thermooptic digital optical switch; total heating power; variable optical attenuators; Heating; Optical attenuators; Optical crosstalk; Optical fiber polarization; Optical losses; Optical materials; Optical switches; Optical waveguides; Polymers; Refractive index; Digital optical switch (DOS); S-bend waveguide; integrated optics; variable optical attenuator (VOA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.870184
