Tailoring of the Brillouin gain profile for fiber-based sensor systems and networks

Peter D. Dragic

doi:10.1117/12.818817

27 April 2009 Tailoring of the Brillouin gain profile for fiber-based sensor systems and networks

Peter D. Dragic

Proceedings Volume 7316, Fiber Optic Sensors and Applications VI; 731607 (2009) https://doi.org/10.1117/12.818817
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

We outline a design procedure and show some resulting Brillouin-tailored optical fibers for use in fiber-based sensor systems and networks. Brillouin scattering can be utilized, for example, in distributed temperature sensors. However, it can also be detrimental, such as when high power per-unit-bandwidth is propagated over long distances. Based on models we have developed, several Brillouin-tailored fibers were designed and manufactured, each potentially targeting a unique application. For example, a fiber was designed and fabricated that operates with two Brillouin frequencies that have been gain-equalized to within 0.5 dB, and a frequency difference of 175 MHz. Temperature sensing may be accomplished by the direct detection of the beat frequency between the two Stokes' lines. In another example, an optical fiber was designed and fabricated with eight acoustic modes that have all been Brillouin gain-equalized to within 3 dB, over a frequency span of nearly 1 GHz. In another example, fiber optic sensors that require the propagation of narrow linewidth signals over longer distances are limited by Stimulated Brillouin Scattering (SBS). A fiber has been designed and fabricated that has a Brillouin-threshold that is increased by > 10 dB relative to traditional fibers with the same optical mode size.

Citation Download Citation

Peter D. Dragic "Tailoring of the Brillouin gain profile for fiber-based sensor systems and networks", Proc. SPIE 7316, Fiber Optic Sensors and Applications VI, 731607 (27 April 2009); https://doi.org/10.1117/12.818817

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