Band-rejection Filter Based on Cascaded Two Sidewall Gratings in Multimode Polymer Waveguide

Rui Cao,Lingfang Wang,Kaixin Chen

Band-rejection Filter Based on Cascaded Two Sidewall Gratings in Multimode Polymer Waveguide

2019

Rui Cao
Lingfang Wang
Kaixin Chen

A simple band-rejection filter based on cascaded long period gratings in polymer waveguide is designed and demonstrated. Our fabricated device shows a maximum extinction ratio of ~19 dB around 1555 nm.

Keywords:

Multi-mode optical fiber
polymer waveguide
Band rejection
Optoelectronics
Materials science
Extinction ratio
Amplified spontaneous emission
long period

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