SBS suppression and coherence properties of a flat top optical spectrum in a high power fiber amplifier

Brian M. Anderson; Rongqing Hui; Angel Flores; Iyad Dajani

doi:10.1117/12.2252380

7 March 2017 SBS suppression and coherence properties of a flat top optical spectrum in a high power fiber amplifier

Brian M. Anderson, Rongqing Hui, Angel Flores, Iyad Dajani

Proceedings Volume 10083, Fiber Lasers XIV: Technology and Systems; 100830V (2017) https://doi.org/10.1117/12.2252380
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

In this paper we report the generation of flat top optical spectrum using an arbitrary waveform generator to increase the SBS threshold in high power optical fiber amplifiers. The optical spectrum consists of a number of discrete spectral lines, ranging from 16 to 380, within the bandwidth of 2GHz, corresponding to line spacing between 133 MHz and 5 MHz. These discrete spectral lines correspond to a PRBS pattern of n = 4 to n = 8. The SBS threshold and coherence properties of the flat top spectrum are measured and compared to that of the filtered PRBS in a kilowatt class fiber amplifier. It is experimentally demonstrated that for large frequency line spacing, the flat top spectrum significantly outperforms the corresponding filtered PRBS, but as the line spacing is decreased to less than the Brillouin bandwidth, the two modulation waveforms have similar enhancement factors in the SBS threshold due to the enhanced crosstalk between neighboring frequency components.

Conference Presentation

Citation Download Citation

Brian M. Anderson, Rongqing Hui, Angel Flores, and Iyad Dajani "SBS suppression and coherence properties of a flat top optical spectrum in a high power fiber amplifier", Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100830V (7 March 2017); https://doi.org/10.1117/12.2252380

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