Title :
SBS suppression in nanosecond fiber amplifier with controlled frequency chirp
Author :
Ionov, Pavel ; Di Teodoro, Fabio ; Rose, Todd
Author_Institution :
Aerosp. Corp., Los Angeles, CA, USA
Abstract :
We observe a nearly 9-fold increase in the SBS threshold for a pulsed Yb fiber amplifier by applying a linear frequency-chirp to the input seed pulse. The chirp is achieved by pulse driving a phase modulator. SBS threshold data and transient SBS gain for various degrees of chirp are reported.
Keywords :
chirp modulation; optical control; optical fibre amplifiers; phase modulation; stimulated Brillouin scattering; ytterbium; SBS suppression; SBS threshold data; controlled frequency chirp; linear frequency-chirp; nanosecond fiber amplifier; phase modulator; pulsed ytterbium fiber amplifier; Chirp; Gain; Modulation; Optical fiber amplifiers; Scattering; Transient analysis;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
