A Novel Hybrid Coupler Based on Antiresonant Reflecting Optical Waveguides

Jau-Jan Deng, Yang-Tung Huang
1996 Proceedings of European Meeting on Lasers and Electro-Optics CLEOE-96  
A novel hybrid coupler based on the antiresonant reflecting optical waveguides (ARROW's) is presented. This device consists of two parallel antiresonant reflecting optical waveguides with a tapered outermost cladding layer. Such a device can provide advantageous features of low radiation loss, low crosstalk at the output end, and compatible core dimensions and indexes with single-mode optical fibers. The staircase approximation and the eigenmode expansion analysis are used to analyze and
more » ... e this device. In our design on a Si-substrate, radiation losses below 0.38 dB and extinction ratios below 020 dB for two waveguide channels are achieved. The beam propagation method (BPM) is also used to verify our design and analysis results.
doi:10.1109/cleoe.1996.562469 fatcat:ffeae77ynbfinkpet2hhjekqiy