High-brightness CuBr MOPA laser with diffraction-limited throughout-pulse emission

M2 of MOPA CuBr Laser Radiation

“…In a previous paper (Astadjov et al 2005) we studied the time dependence of brightness during the laser pulse of MOPA fitted with different resonators. Here we define the brightness, B M with reference to M 2 : B M = P/(M 2 ) 2 , where P is the average laser power.…”

“…The first system (MOPA1) was the same as reported in (Astadjov et al 2005). It comprised MO and PA having respectively bore diameter of 14 and 20 mm and electrode separation of 60 and 55 cm.…”

“…time-dependant measurements during the laser pulse made by Astadjov et al 2005). The dependence of M 2 on the time delay (abbr.…”

“…Guyadec et al 1999;Brown and Coutts 1996;Brown et al 2001). A MOPA CuBr laser with GDFR (generalized diffraction filtering resonator) has already demonstrated unique properties (Astadjov et al 2005).…”

Investigation of operational parameters on copper bromide laser output power

“…The operating temperature of halide lasers (400-600 o C) depend on the vapour pressure and type of the compounds and is about 500 o C for copper bromide lasers(CBLs) (Aeinehvand, Behrouzinia, Salem, Elahei, & Khorasani, 2017;Dehghani, Khorasani, Sajad, Salehinia, & Behrouzinia, 2011;Gabay, Smilanski, Levin, & Erez, 1977;Lima, Behrouzinia, & Khorasani, 2018, 2019Lima et al, 2017;Little, 1999;Petrash, 1988) which is much lower than of the pure CVL's (1550-1700 o C) (Ashtari, Behrouzinia, Sajad, & Zand, 2011;Behrouzinia, Namdar, Zand, Barry, & Hojabri, 2006;Kazaryan, Petrash, & Trofimov, 1980;Nerheim, 1977). The other advantages of halide lasers are reduction of warm-up time for laser oscillation, which is important in commercial applications, higher pulse repetition frequency, higher wall-plug efficiency and higher beam quality (D. Astadjov et al, 1997;D. N. Astadjov, Stoychev, Dixit, Nakhe, & Sabotinov, 2005).…”