[OPTICAL REVIEW Vol. 12, No. 3 (2005) 233-236]
© 2005 The Optical Society of Japan

Ray Model of an Incident Gaussian Beam for Analyzing a Micro-Optical Communication Device with a GRIN Lens System

Hun Yong PARK, Sang-Woo HA, Myoung-Jin KIM1, Seung Gol LEE*, Se-Geun PARK, Beom-Hoan O and El-Hang LEE

Micro-Photonics Advanced Research Center, School of Information and Communication Engineering, INHA University, 253 Yonghyun-Dong, Nam-Gu, Incheon 402-751, Korea
1Optical Telecommunication Research Center, Korea Electronics Technology Institute, 455-6 Masan-Ri, Jinwi-Myeon, Pyungteak 451-865, Korea

(Received September 27, 2004; Revised February 16, 2005; Accepted March 16, 2005)

For the design of reliable micro-optical devices with a high coupling efficiency, a source-modeling method necessary for ray tracing is newly proposed. This method is based on the ray-division of an incident wavefront estimated by Gaussian beam optics. The simulation result obtained using the proposed method was compared with those of the conventional methods, and its accuracy was confirmed by the experimental results. Finally, the method was used to design a micro-optical device with two GRIN lenses and a thin-film filter.

Key words: micro-optical device, source modeling, ray tracing, coupling efficiency, OADM (optical add-drop multiplexer)

*Corresponding author: E-mail address: sglee@inha.ac.kr