Simplified Brillouin optical time-domain analysis with extended measurement range by frequency dithering

Jun Gi Hong; Kwang Yong Song

doi:10.1117/12.2059457

2 June 2014 Simplified Brillouin optical time-domain analysis with extended measurement range by frequency dithering

Jun Gi Hong, Kwang Yong Song

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91576I (2014) https://doi.org/10.1117/12.2059457
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

We demonstrate a simplified Brillouin optical-time domain analysis system based on direct current modulation of a laser diode with an extended measurement range and an enhanced spatial resolution. Slow and periodic frequency dithering is additionally applied to the laser diode to suppress the noise originated from coherent Rayleigh scattering. The distribution of Brillouin gain spectra along a 25 km fiber is successfully measured with a 1 m spatial resolution and an accuracy of σ = 0.78 MHz, confirming its high practicality as a cost-effective solution.

Citation Download Citation

Jun Gi Hong and Kwang Yong Song "Simplified Brillouin optical time-domain analysis with extended measurement range by frequency dithering", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91576I (2 June 2014); https://doi.org/10.1117/12.2059457

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