Optical fiber tapers produced by near-infrared laser radiation

Marta Nespereira; João M. P. Coelho; Fernando Monteiro; Manuel Abreu; J. M. Rebordão

doi:10.1117/12.2026258

18 November 2013 Optical fiber tapers produced by near-infrared laser radiation

Marta Nespereira, João M. P. Coelho, Fernando Monteiro, Manuel Abreu, J. M. Rebordão

Proceedings Volume 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications; 87854Z (2013) https://doi.org/10.1117/12.2026258
Event: 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, 2013, Porto, Portugal

Abstract

The use of CO₂ lasers in the production of optical fiber sensors is a well proven application, especially in writing long period fiber gratings. The mid-infrared radiation (MIR) emitted by these lasers is highly absorbed by the glass optical fibers commonly used as fiber-based sensors, and the consequent heating easily leads to melting. Making use of this advantage, the application of this radiation in the tapering of optical fibers is demonstrated. A continuous wave emission CO₂ laser is used in short duration pulses, a cylindrical lens focuses the beam on the fiber and a small weight produces the effect of pulling the fiber. The resulting tapers’ characteristics (length, degree of symmetry and central diameter, or waist) are analyzed as well as the influence of the operational parameters involved in the process (laser power, pulse duration and number of pulses). The potential of this technique is demonstrated with special attention to its use in the development of optical fiber-based sensors.

Citation Download Citation

Marta Nespereira, João M. P. Coelho, Fernando Monteiro, Manuel Abreu, and J. M. Rebordão "Optical fiber tapers produced by near-infrared laser radiation", Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 87854Z (18 November 2013); https://doi.org/10.1117/12.2026258

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