NDLI: Ultraweak Waveguide Modification With Intact Buffer Coating Using Femtosecond Laser Pulses

Content Provider	IEEE Xplore Digital Library
Author	Zhen Chen Hefferman, G. Lei Yuan Yang Song Tao Wei
Copyright Year	1989
Abstract	This letter reports a new fabrication technique to inscribe in-line, ultraweak waveguide structures. To the best of our knowledge, this is the first time that an in-line grating structure has been fabricated within the core of an optical fiber with an intact buffer coating, allowing the fiber to retain optimal mechanical properties, an important consideration for strain and temperature sensing applications. Low energy pulses from a femtosecond laser were adjusted to avoid buffer absorption while inscribing a terahertz fiber Bragg grating (THz FBG) within the optical fiber core. Strain and temperature tests were conducted using both a THz FBG sensor fabricated using the reported method and a second THz FBG fabricated using a previously reported method requiring buffer removal. Highly similar results from both Thz FBGs were observed, indicating that the new intact buffer fabrication technique holds substantial potential as a method of fabricating optical fiber grating structures for distributed sensing applications.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	1705
Ending Page	1708
Page Count	4
File Size	490933
File Format	PDF
ISSN	10411135
Volume Number	27
Issue Number	16
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-15
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fiber lasers Optical buffering Optical fiber sensors Ultrafast optics Optical fibers Fiber gratings Fabrication femtosecond laser optical fiber sensor Optical fiber sensor
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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