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A high-Q wavelength filter based on buried heterostructure ring resonators integrated with a semiconductor optical amplifier

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5 Author(s)
Choi, Seung June ; Dept. of Electr. Eng.-Electrophys., Univ. of Southern California, Los Angeles, CA, USA ; Peng, Z. ; Yang, Q. ; Hwang, E.H.
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We demonstrate a very high quality (Q) factor wavelength filter based on a buried heterostructure (BH) microresonator platform technology. A 200-μm-radius BH ring resonator is integrated with a semiconductor optical amplifier (SOA) using offset quantum wells for loss-cancellation. The resonator is operated near critical coupling at ISOA=29 mA, which yields a coupling-limited Q of 2.0×105 with an extinction of -26 dB at the resonant wavelength.

Published in:

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

Date of Publication:

Oct. 2005

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