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A Si-based tunable narrow-band flat-top filter with multiple-step-type Fabry-Perot cavity structure

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9 Author(s)
Zuo, Y.H. ; State Key Lab. on Integrated Optoelectronics, Chinese Acad. of Sci., Beijing, China ; Mao, R.W. ; Zheng, Y.Y. ; Shi, X.
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In the optical network, the quick and accurate alignment with wavelength is an important issue during the channel detection. At this point, a filter having flat-top response characteristic is an effective solution. Based on multiple-step-type Fabry-Perot cavity structure, a novel all-Si-based thermooptical tunable flat-top filter with narrow-band has been fabricated, using our patent silicon-on-reflector bonding technology. The device demonstrated a 1-dB flat-top width of 1 nm, 3-dB band of 3 nm, free spectra range of 8 nm, and the tuning range of 4.6 nm was obtained under the applied voltage of 4 V.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 10 )

Date of Publication:

Oct. 2005

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