Title :
Integration of a multimode interference coupler with a corrugated sidewall Bragg grating in planar polymer waveguides
Author :
Zhu, Lin ; Huang, Yanyi ; Yariv, Amnon
Author_Institution :
Dept. of Appl. Phys., California Inst. of Technol., Pasadena, CA, USA
fDate :
3/15/2006 12:00:00 AM
Abstract :
We demonstrate the integration of a 3-dB multimode interference coupler with a corrugated sidewall Bragg grating in planar polymer waveguides by direct electron beam writing. Both transmission and reflection spectra of the Bragg grating are measured through this integrated device directly. We use the thermooptic effect to tune the integrated waveguide grating, achieving a tuning range of 6.2 nm and a bandwidth variation of 0.3 nm within a temperature change of 62°C.
Keywords :
Bragg gratings; integrated optoelectronics; optical couplers; optical fibres; optical planar waveguides; optical polymers; optical tuning; reflectivity; thermo-optical effects; corrugated Bragg grating; direct electron beam writing; integrated device; integrated waveguide grating; multimode interference coupler; optical tuning; planar polymer waveguides; reflection spectra; sidewall Bragg grating; thermooptic effect; transmission spectra; Bragg gratings; Electron beams; Interference; Optical coupling; Optical reflection; Planar waveguides; Polymers; Thermooptic effects; Waveguide transitions; Writing; Integrated optoelectronics; multimode interference (MMI) couplers; polymer gratings;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.871125
