Design for Y-branch waveguides with wide angle and low loss

Abstract

A novel method to design Y-branch waveguides is proposed by using total internal reflection, and the optical properties are analyzed. The simulated results show that the optical loss values of two Y-branch waveguides with the branching angles of 12° and 30° are only 0.310 dB and 0.645 dB, respectively. Compared with conventional Y-branch waveguides, the optical performance of the proposed ones is well improved, which has many advantages such as wide angle, low loss, simple structure and easy for fabrication.

Keywords

Deflection Angle / Total Internal Reflection / Effective Refractive Index / Optical Loss / Beam Propagation Method

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