Fabrication and comprehensive study of silicon oxynitride based compact directional coupler and multimode interference coupler

Bidyut Deka; Aradhana Dutta; Gopal Hegde; Partha Pratim Sahu

doi:10.1117/12.2012435

28 January 2013 Fabrication and comprehensive study of silicon oxynitride based compact directional coupler and multimode interference coupler

Bidyut Deka, Aradhana Dutta, Gopal Hegde, Partha Pratim Sahu

Author Affiliations +

Proceedings Volume 8760, International Conference on Communication and Electronics System Design; 876024 (2013) https://doi.org/10.1117/12.2012435
Event: International Conference on Communication and Electronics System Design, 2013, Jaipur, India

Abstract

In this paper a comprehensive study of compact conventional Directional Coupler (DC) and Multimode Interference (MMI) coupler using a numerical model based on Simple Effective Index Method (SEIM) have been presented. The coupling length of the couplers is then compared with the results obtained by using commercially available Beam Propagation Method (BPM) based software with respect to different waveguide separation gap and different coupling gap’s refractive indices. The designed couplers are fabricated using SiON as a core and silica as a cladding. It is found both from the experimental and theoretical results that the beat length of conventional MMI coupler is ~ 1.9 times lower than that of conventional DC.

Citation Download Citation

Bidyut Deka, Aradhana Dutta, Gopal Hegde, and Partha Pratim Sahu "Fabrication and comprehensive study of silicon oxynitride based compact directional coupler and multimode interference coupler", Proc. SPIE 8760, International Conference on Communication and Electronics System Design, 876024 (28 January 2013); https://doi.org/10.1117/12.2012435

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