Title :
Experimental research on preamplifier for high power Yb-doped fiber pulse amplification
Author :
Liu, Fengnian ; Guo, Xin ; Na Li ; Kong, Lingfang ; Wen, Hong ; Li, Na
Author_Institution :
Sch. of Comput. & Commun., Hunan Univ. of Technol., Zhuzhou, China
Abstract :
By using cascaded Wavelength Division Multiplexing and pumping in sectionalization method, ASE and feedback were greatly suppressed. At repetition rate of 50kHz and pulse duration of 20ns, gain of amplified signal was 17.1dB with a high signal to noise ratio of 25dB. The whole system is a good choice for a preamplifier of high-power pulse amplification.
Keywords :
optical feedback; optical fibre amplifiers; optical pumping; preamplifiers; wavelength division multiplexing; ytterbium; ASE; amplified signal; cascaded wavelength division multiplexing; experimental research; feedback; frequency 50 kHz; gain 17.1 dB; high power ytterbium-doped fiber pulse amplification; high-power pulse amplification; noise figure 25 dB; preamplifier; pulse duration; pumping; repetition rate; sectionalization method; signal to noise ratio; Couplings; Laser excitation; Optical fiber amplifiers; Optical fiber polarization; Preamplifiers; Signal to noise ratio; Wavelength division multiplexing;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682750
