Design of optical building blocks for photonic integration
We present a transfer matrix analysis of a 2-D filter to study its frequency response functions. The (M xN) array consists of N independent columns of micro-ring resonators side-coupled to two channel bus waveguides, with equal spacing between columns and each column consisting of M coupled resonato...
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| Format: | Research Report |
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2008
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| Online Access: | http://hdl.handle.net/10356/2938 |
| _version_ | 1824453902013038592 |
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| author | Chin, Mee Koy. |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Chin, Mee Koy. |
| author_sort | Chin, Mee Koy. |
| collection | NTU |
| description | We present a transfer matrix analysis of a 2-D filter to study its frequency response functions. The (M xN) array consists of N independent columns of micro-ring resonators side-coupled to two channel bus waveguides, with equal spacing between columns and each column consisting of M coupled resonators. We show that the bandgap of the 2-D structure is a superposition of the non-overlapping bandgap of the two 1-D arrays. This non-overlapping property can be used to realize the "near-ideal" filter with flat and sharp passband, negligible sidelobes in the stop bands, and linear phase response over 80% of the passband. The existence of defect mode in linear and lossless ring resonator arrays is also demonstrated. The defect can be introduced by removing one ring or by making one ring bigger or smaller. Defect states within the photonic bandgaps behave like either donor or acceptor modes similar to other photonic crystals. The results based on transfer matrix model shows reasonable agreement with finite difference time domain (FDTD) simulations. |
| first_indexed | 2025-02-19T03:13:47Z |
| format | Research Report |
| id | ntu-10356/2938 |
| institution | Nanyang Technological University |
| last_indexed | 2025-02-19T03:13:47Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/29382023-03-04T03:24:44Z Design of optical building blocks for photonic integration Chin, Mee Koy. School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics We present a transfer matrix analysis of a 2-D filter to study its frequency response functions. The (M xN) array consists of N independent columns of micro-ring resonators side-coupled to two channel bus waveguides, with equal spacing between columns and each column consisting of M coupled resonators. We show that the bandgap of the 2-D structure is a superposition of the non-overlapping bandgap of the two 1-D arrays. This non-overlapping property can be used to realize the "near-ideal" filter with flat and sharp passband, negligible sidelobes in the stop bands, and linear phase response over 80% of the passband. The existence of defect mode in linear and lossless ring resonator arrays is also demonstrated. The defect can be introduced by removing one ring or by making one ring bigger or smaller. Defect states within the photonic bandgaps behave like either donor or acceptor modes similar to other photonic crystals. The results based on transfer matrix model shows reasonable agreement with finite difference time domain (FDTD) simulations. 2008-09-17T09:17:41Z 2008-09-17T09:17:41Z 2004 2004 Research Report http://hdl.handle.net/10356/2938 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Chin, Mee Koy. Design of optical building blocks for photonic integration |
| title | Design of optical building blocks for photonic integration |
| title_full | Design of optical building blocks for photonic integration |
| title_fullStr | Design of optical building blocks for photonic integration |
| title_full_unstemmed | Design of optical building blocks for photonic integration |
| title_short | Design of optical building blocks for photonic integration |
| title_sort | design of optical building blocks for photonic integration |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics |
| url | http://hdl.handle.net/10356/2938 |
| work_keys_str_mv | AT chinmeekoy designofopticalbuildingblocksforphotonicintegration |