Diode-pumped continuous wave self-sum-frequency mixing yellow Nd:YAB laser at 592 nm

Abstract

A dual-wavelength continuous wave (CW) diodepumped Nd:YAB laser that generates simultaneous laser action at the wavelengths 1062 and 1338 nm is demonstrated. A total output power of 278 mW at the two fundamental wavelengths was achieved at the absorbed pump power of 9.8 W. Furthermore, generation of yellow laser light at 592 nm produced by Type-I self-sum-frequency-mixing of both fundamental waves is observed under non-optimal phase matching conditions. With a diode pump power of 9.8 W, TEM00 mode yellow laser at 592 nm of 37 mW is obtained. The power stability in 4 h is better than 3.3%. Dependence of the output power at 592 nm on absorbed pump power

Efficient diode-end-pumped Yb:CaNb2O6 thin-disk laser at 1003 nm and second-harmonic generation for an emission at 501.5 nm

“…In particular, diode-pumped solidstate laser systems have been established as an efficient and compact light source for these applications. By frequency doubling the radiation from Nd 3+ lasers, one can generate blue, green, and red radiation, and by implementing the technique of intracavity doubling, one can achieve high conversion efficiencies [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Secondary optical fre-quency references based on visible lasers locked on iodine hyperfine absorption lines have made a real breakthrough with the development of frequency doubled diode-pumped Nd 3+ lasers at 532 nm [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32].…”

Blue-green light generation by self-sum-frequency mixing Nd:YCOB laser

“…New solid sate lasers were designed to enlarge the panel of wavelengths, for example, in the orangeyellow range [14][15][16][17][18][19][20][21][22][23], and in the cyan range [24][25][26]. In recent years, rare earth ions doped nonlinear laser crystals such as Nd 3+ or Yb 3+ doped YAB, GCOB, YCOB, and MgO:LiNbO 3 have been paid much attention [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46], because they combine laser and nonlinear optical functions into a single crystal, which makes it possible that the red, green and blue lasers can be produced in a crystal via self-frequency-doubling of fundamental infrared lasers of the active ions. Nd 3+ doped YCa 4 O(BO 3 ) 3 (YCOB) has been reported to perform very efficiently as a CW selffrequency-doubled laser in the green laser radiation based on self-frequency conversion [31][32][33].…”

A CW green laser emission by self-sum-frequency-mixing in Nd:GdCOB crystal

“…In these lasers, the key material is a self-frequency-doubling crystal which performs both functions of laser emission and nonlinear optical conversion in a single crystal. Nd or Yb doped YAB, GCOB, YCOB, MgO:LiNbO 3 , Nd:LiNbO 3 , and LnCa 4 O(BO 3 ) 3 (Ln = Y or Gd) are three most promising series selffrequency-doubling crystal [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46]. Nd 3+ doped GdCOB has been reported to perform very efficiently as a continuous wave (CW) self-frequency-doubled laser in the green laser radiation based on self-frequency conversion [47,48]…”