Frequency dependence of amplifying parameters of a copper vapor laser using air as a buffer gas

The behavior of gain and saturation characteristics versus temperature in a copper bromide laser

“…However, since the Doppler broadening is sufficiently greater than the pressure broadening linewidth for a typi cal CBL as well as a CVL, the amplifying medium can be assumed to be an inhomogeneous broadened gain medium. The g 0 (cm −1 ) and E S (µJ cm −2 ) can be calculated with a leastsquares fitting of the experimental data into the Hargrove equation given by [14,20,21]…”

“…The CBL MOPA system consisted of two identical tubes with an inner diameter of 20 mm and a length of 48 cm. This is a similar setup to those in our previous works for CVL and GVL MOPAs [14,20,21]. Two identical cylindrical tubes were used as the oscillator and the amplifier and these were made of quartz with an inner diameter of 20 mm and an active gain length of 48 cm.…”

Gain radial distribution of copper bromide lasers

“…In addition, some works have been studied on spatial-temporal gain distribution on CBL (Evtushenko, 2015;Fedor Alexandrovich Gubarev, Trigub, Klenovskii, Li, & Evtushenko, 2016). On the other hand, the master oscillatorpower amplifier (MOPA) array has been used extensively in order to determine the small-signal gain (g 0 ), and saturation intensity (E S ), as laser amplifying parameters, in metal vapor lasers (S Behrouzinia, Khorasani, Kazemi, & Mashayekhi, 2011;S Behrouzinia, Sadighi-Bonabi, Parvin, & Zand, 2004;Saeid Behrouzinia, Sadighi, & Parvin, 2003;S. M. Lima, Behrouzinia, & Khorasani, 2019;S.…”

Experimental Study of Buffer Gas Flow Rate Effect on Output Power of a Copper Vapor Laser

“…CVLs have wide applications in the research, medicine and industry and have been used extensively in high speed imaging, micro-machining, non-linear frequency conversion to the ultraviolet and photodynamic therapy. Moreover, they have considered as a powerful pumping source for dye lasers [27]- [31], particularly by means of a master oscillator-power am-plifier array, in order to satisfy higher output powers and beam quality simultaneously [32] [33]. The output power of CVL involved many factors and the type of buffer gas only had some influences on it.…”

“…It is shown that the smallsignal gain increases and the intensity saturation decreases with increase in the air pressure. Moreover, the values of these parameters are different for various gases used in the amplifier media [43]. The amplifying parameters, and then output power, and interval of operational pressure of CVL have been strongly affected by buffer gas.…”