Stressed waveguides with tubular depressed-cladding inscribed in phosphate glasses by femtosecond hollow laser beams
Issue Date
2012Author
Long, Xuewen
Bai, Jing
Zhao, Wei
Stoian, Razvan
Hui, Rongqing
Cheng, Guanghua
Publisher
Optical Society of America
Type
Article
Article Version
Scholarly/refereed, publisher version
Metadata
Show full item recordAbstract
We report on the single-step fabrication of stressed optical waveguides with tubular depressed-refractive-index cladding in phosphate glasses by the use of focused femtosecond hollow laser beams. Tubelike low index regions appear under direct exposure due to material rarefaction following expansion. Strained compacted zones emerged in domains neighboring the tubular track of lower refractive index, and waveguiding occurs mainly within the tube core fabricated by the engineered femtosecond laser beam. The refractive index profile of the optical waveguide was reconstructed from the measured transmitted near-field intensity.
Description
This is the published version. ©Copyright 2012 Optical Society of America
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Citation
Long, Xuewen, Jing Bai, Wei Zhao, Razvan Stoian, Rongqing Hui, and Guanghua Cheng. "Stressed Waveguides with Tubular Depressed-cladding Inscribed in Phosphate Glasses by Femtosecond Hollow Laser Beams." Optics Letters Opt. Lett. 37.15 (2012): 3138. http://dx.doi.org/10.1364/OL.37.003138
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