Transmission performance of 90°-bend optical waveguides fabricated in fused silica by femtosecond laser inscription

Abstract

The L-shape waveguide was written in fused silica using a femtosecond laser with beam shaping. The guiding structure supports good light turning; 0.88 dB/turn was achieved at the silica-air interface. By using the finite-different time-domain method, the turn loss due to the turning structure and refractive index of the L-shape waveguide has been simulated. The results show that the proposed method has unprecedented flexibility in fabricating a 90°-bend waveguide.

Publication DOI: https://doi.org/10.1364/OL.42.003470
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: © 2017 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2017-09-01
Published Online Date: 2017-08-30
Accepted Date: 2017-08-07
Authors: Lv, Jing
Bai, Jing
Zhou, Kaiming ( 0000-0002-6011-1912)
Mei, Xuesong
Wang, Kedian
Li, Ming
Cheng, Guanghua

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