Title :
Observation of the thermal nonlinear optical effect in a microring resonator based on a small SU-8 polymer ridge optical waveguide
Author :
Yang, Liu ; Dai, Daoxin ; Jianjun He ; He, Jianjun
Author_Institution :
Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, 310058, China
Abstract :
The thermal nonlinear optical effect is observed in a microring resonator (MRR) based on a small SU-8 polymer ridge optical waveguide. It is found that the resonant wavelength blue shifts almost linearly with a slope of about −0.8 pm/mW as the input power increases (which causes the increase in temperature and consequently the decrease of the refractive index). Both the strong light-confinement of the air-clad waveguide and the strong light-enhancement of the MRR cavity contribute to the significant nonlinearity. The absorption mechanism is analyzed in detail, and the absorbance of about 0.179 cm−1 (around 1560 nm) is obtained.
Keywords :
Absorption; Nonlinear optics; Optical polymers; Optical refraction; Optical resonators; Optical variables control; Optical waveguides; Refractive index; Resonance; Temperature; SU-8; microring resonator (MRR); polymer; thermal nonlinear optical effect;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
