Ultrafast laser fabrication of Bragg waveguides in chalcogenide glass

被引：12

作者：

McMillen, Ben ^{[1
]}

Li, Mingshan ^{[1
]}

Huang, Sheng ^{[1
]}

Zhang, Botao ^{[1
]}

Chen, Kevin P. ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Elect Engn, Pittsburgh, PA 15261 USA

来源：

OPTICS LETTERS | 2014年 / 39卷 / 12期

基金：

美国国家科学基金会;

关键词：

OPTICAL-PROPERTIES; FUSED-SILICA; FIBER; REGENERATION; CIRCUITS;

D O I：

10.1364/OL.39.003579

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Bragg waveguides are fundamental components in photonic integrated circuits and are particularly interesting for mid-IR applications in high index, highly nonlinear materials. In this work, we present Bragg waveguides fabricated in bulk chalcogenide glass using an ultrafast laser. Waveguides with near circularly symmetric cross sections and low propagation loss are obtained through spatial and temporal beam shaping. Using a single-pass technique, the waveguide and Bragg structure are formed at the same time. First through sixth order gratings with strengths of up to 25 dB are realized, and performance is evaluated based on the modulation duty cycle of the writing beam. (C) 2014 Optical Society of America

引用

页码：3579 / 3582

页数：4

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