Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 17, Issue 10, Pages 2101-2103Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2005.856372
Keywords
buried heterostructure (BH); critical coupling; integrated semiconductor optical amplifier (SOA); microresonator; offset quantum wells QWs); quality factor; wavelength filter
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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-mu m-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 I-SOA = 29 mA, which yields a coupling-limited Q of 2.0 x 10(5) with an extinction of -26 dB at the resonant wavelength.
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