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High-extinction ratio and low-loss silica-based 8/spl times/8 thermooptic matrix switch

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5 Author(s)
Goh, T. ; NTT Opto-Electron. Labs., Ibaraki, Japan ; Himeno, A. ; Okuno, M. ; Takahashi, H.
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A high-extinction ratio and low-loss silica-based 8/spl times/8 thermooptic matrix switch is demonstrated. The 8/spl times/8 matrix switch is realized by using a double Mach-Zehnder interferometer switching unit and a matrix arrangement which reduces the total waveguide length. The average extinction ratio and the average insertion loss are 60.3 and 5.2 dB, respectively.

Published in:

Photonics Technology Letters, IEEE  (Volume:10 ,  Issue: 3 )