Femtosecond laser microprocessing for implanting sensor function into optical fibers

Kenji Goya; Daisaku Tokita; Kazuhiro Watanabe

doi:10.1117/12.880920

15 November 2010 Femtosecond laser microprocessing for implanting sensor function into optical fibers

Kenji Goya, Daisaku Tokita, Kazuhiro Watanabe

Proceedings Volume 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 775129 (2010) https://doi.org/10.1117/12.880920
Event: 18th International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2010, Sofia, Bulgaria

Abstract

The purpose of this study is to fabricate an internal structure in a silica fiber using internal processing with a femtosecond laser to develop a novel optical fiber sensor. We have found that bending directions can be detected by measuring transmitted light that has been affected from non-axial symmetry-sensing region in our proposed optical fiber sensor. In this paper, an optical fiber-processing experiment is carried out with the intensity of light transmitted through the sensing region being measured so that light loss through internal processing is measured. In the processing experiment, it was confirmed that use of a Ti:sapphire laser results in a processed region inside the fiber. In the measurement experiment, light transmitted through the core of a processed fiber was measured when the fiber was bent toward the processed region and when the fiber was bent toward the other side. The intensity of transmitted light obtained was found to be dependent on the two bending directions. This indicates that detection of the bending direction is possible. Experimental results are presented for the optimum irradiation parameters for internal processing of optical fibers for the fabrication of various required dot structures in the vicinity of the fiber core surface. We also report measurement experiment for the processed fiber.

Citation Download Citation

Kenji Goya, Daisaku Tokita, and Kazuhiro Watanabe "Femtosecond laser microprocessing for implanting sensor function into optical fibers", Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 775129 (15 November 2010); https://doi.org/10.1117/12.880920

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available