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Low crosstalk 1/spl times/2 thermooptic digital optical switch with integrated S-bend attenuator

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7 Author(s)
Xiaoqing Jiang ; Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou ; Wei Qi ; Hao Zhang ; Tang, Yi
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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

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 4 )