Инд. авторы:	Donin V.I., Yakovin D.V., Yakovin M.D., Gribanov A.V.
Заглавие:	Superluminescent high-efficient parametric generation in PPLN crystal with pumping by a Q-switched mode locked Nd:YAG laser
Библ. ссылка:	Donin V.I., Yakovin D.V., Yakovin M.D., Gribanov A.V. Superluminescent high-efficient parametric generation in PPLN crystal with pumping by a Q-switched mode locked Nd:YAG laser // Laser Physics Letters. - 2018. - Vol.15. - Iss. 3. - Art.035005. - ISSN 1612-2011. - EISSN 1612-202X.
Внешние системы:	DOI: 10.1088/1612-202X/aaa397; SCOPUS: 2-s2.0-85045645866; WoS: 000425176400001;
Реферат:	eng: We present results on parametric superluminescence in a periodically poled lithium niobate crystal pumped by a train of 45 ps pulses using a Q-switched mode locked Nd:YAG laser. The conversion efficiency (with respect to the absorbed power) was similar to 83%. To the best of our knowledge, this is the highest efficiency obtained with powerful superluminescent parametric sources. At the average pumping power of the laser of similar to 0.5 W and repetition rates of 1 and 1.7 kHz, the peak total output powers were as high as 210 and 200 kW, and the powers of the idler wavelength (3.82 mu m) were 55 and 50 kW. New lines in the visible and UV spectrum were observed and are explained. The experiments demonstrated that the spectral and angular characteristics of superluminescence are determined by the pumping laser. In particular, the line width of the signal wave was close to that of the pumping line at similar to 200 GHz, and the divergence of the signal and idler waves depended only on the convergence (divergence) angle of the pumping radiation (30 mrad) and was independent of the wavelength.
Ключевые слова:	OSCILLATOR; ND YAG LASER; PERIODICALLY POLED LINBO3; visible lasers; IR; periodically poled lithium niobate (PPLN) crystal; superluminescent parametric oscillator;
Издано:	2018
Физ. характеристика:	035005