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

Jing Lv, Jing Bai, Kaiming Zhou, Xuesong Mei, Kedian Wang, Ming Li, Guanghua Cheng*

*Corresponding author for this work

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)3470-3473
Number of pages4
JournalOptics Letters
Volume42
Issue number17
Early online date30 Aug 2017
DOIs
Publication statusPublished - 1 Sep 2017

Bibliographical note

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