Compact and Fabrication-Tolerant Single-Mode Polymer Waveguide Bends
Frontiers in Optics / Laser Science（2020）
Abstract
We propose and experimentally demonstrate a broadband, polarization-diverse compact bending design for low-index-contrast waveguides, where light is re-directed via total internal reflection on an air-trench quadratic reflector surface with insertion loss of 0.3 dB.
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