G. W. Cong, Keijiro Suzuki, Sang-hun Kim, K. Tanizawa, Shu Namiki, H. Kawashima. Robust design of 3-dB directional coupler with weak gap sensitivity for silicon wire waveguide. In Optical Fiber Communications Conference and Exhibition, OFC 2014, San Francisco, CA, USA, March 9-13, 2014. pages 1-3, IEEE, 2014. [doi]
Abstract is missing.