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Compact Microring Resonator With 2 x 2 Tapered Multimode Interference Couplers
- Dai, Daoxin (author)
- Yang, Liu (author)
- Sheng, Z. (author)
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- Yang, Bo (author)
- He, Sailing (author)
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- Institute of Electrical and Electronics Engineers (IEEE), 2009
- 2009
- English.
- In: Journal of Lightwave Technology. - : Institute of Electrical and Electronics Engineers (IEEE). - 0733-8724 .- 1558-2213. ; 27:21, s. 4878-4883
- Journal article (peer-reviewed)
Abstract
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- Compact microring resonator devices are realized by using a small SU-8 polymer strip waveguide that has an SU-8 polymer core (n similar to 1.573), an SiO2 buffer (n similar to 1.445), and an air cladding. Due to the high index contrast of the optical waveguide, a small bending radius (similar to 150 mu m) is used for the MRR. To enhance the coupling between the access optical waveguides and the microring, 2 x 2 multimode interference couplers are used. The measured spectral response of the through port shows a high extinction ratio of over 15 dB and a 3-dB bandwidth of about 0.38 nm (corresponding to a moderate Q-value of similar to 4500).
Keyword
- Microring
- multimode interference (MMI)
- SU-8
- optical wave-guides
- polymer
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- ref (subject category)
- art (subject category)
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- Dai, Daoxin
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- Royal Institute of Technology
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