DocumentCode :
34528
Title :
High-Q Microring Resonators With 2 
2 Angled Multimode Interference Couplers
Author :
Li Jin ; Jianwei Wang ; Xin Fu ; Bo Yang ; Yaocheng Shi ; Daoxin Dai
Author_Institution :
State Key Lab. for Modern Opt. Instrum., Zhejiang Univ., Hangzhou, China
Volume :
25
Issue :
6
fYear :
2013
fDate :
15-Mar-13
Firstpage :
612
Lastpage :
614
Abstract :
High Q-factor microring resonators (MRRs) with 2×2 angled multimode interference (MMI) couplers are realized based on SU-8 polymer strip waveguides, which has an SU-8 polymer core, an SiO2 buffer, and an air cladding. The present MRR has a small radius (150 μm) because of the high-index contrast of the SU-8 optical waveguides. The coupling ratio of the angled MMI couplers is adjusted to achieve a high-loaded Q-factor MRR by modifying the bending angle. When this bending angle is chosen as 3.25°, the Q-factor of the fabricated MRR is about 25 000.
Keywords :
micro-optics; optical couplers; optical polymers; optical resonators; optical waveguides; silicon compounds; SU-8 polymer strip waveguide; SiO2; air cladding; angled MMI coupler; angled multimode interference coupler; high index contrast; high-Q microring resonator; size 150 mum; Couplers; Couplings; Optical device fabrication; Optical resonators; Optical waveguides; Polymers; Q factor; Angled; Q-factor; microring resonator (MRR); multimode interference (MMI) coupler;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2013.2244079
Filename :
6423785
Link To Document :
