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Multimode-interference-coupled ring resonators based on total-internal-reflection mirrors
- Issue Date
- Jan-2007
- Publisher
- JAPAN SOCIETY APPLIED PHYSICS
- Keywords
- multimode-interference coupler; total-internal-reflection mirror; semiconductor optical amplifier; band-stop filter; microring resonator
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, v.46, no.1, pp 175 - 181
- Pages
- 7
- Journal Title
- JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
- Volume
- 46
- Number
- 1
- Start Page
- 175
- End Page
- 181
- ISSN
- 0021-4922
- Abstract
- We investigate the properties of a multimode-interference (MMI) coupled ring cavity resonator with total-internal-reflection (TIR) mirrors and a semiconductor optical amplifier (SOA) in an InGaAsP material system. The TIR mirrors were fabricated by the self-aligned process with a loss of about 1.4 dB per mirror. The resulting free spectral range (FSR) was approximately 0.8 nin (97 GHz) near 1569 rim. The on-off ratio and the full width at half maximum (FWHM) were 8 dB and 0.152 nm, respectively, corresponding to a finesse of 5.2 and a Q factor of 10,322. Hence, such resonators can be directly integrated with other devices making possible the fabrication of compact and highly functional photonic integrated circuits.
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