Continuous-wave yellow light source at 579 nm based on intracavity frequency-doubled Nd:YLF/SrWO4/LBO Raman laser

Abstract

We present a simple laser architecture to obtain continuous-wave (CW) true yellow light sources at the 579 nm. A 806 nm diode-pumped a Nd:YLF crystal emitting at 1047 nm with intracavity Raman shifting by SrWO 4 crystal at 1158 nm. Intracavity frequency-doubling at 1158 nm was then realized in a LiB3O5 (LBO) crystal to reach the yellow-orange radiation. To realize CW yellow radiation, high-Q resonator is applied to resonate two optical fields (i.e. the fundamental, and the first Stokes) by design high performance mirrors and partly sharing linear resonator. The stimulated Raman scattering (SRS) resonator losses is effectively reduced. We obtained a CW output power up to 889 mW at 579 nm with an incident pump power of 15.3 W at 806 nm, corresponding to an optical conversion efficiency of 5.8% with respect to the incident pump power

Kilohertz high power extracavity KGW yellow raman lasers based on pulse LD side-pumped ceramic Nd: YAG

“…To achieve required yellow sources, a variety of approaches have been explored in recent years. These include intracavity sum frequency mix ing in a self Raman crystal [8][9][10], intracavity sum frequency mixing with intracavity Raman shifted [11,12], intracavity frequency doubling with intracavity Raman shifted [13,14] and external Raman shifted by frequency doubling green laser pumped [15,16]. However, many types of Raman resonator, whose inelastic Raman scattering is caused by the thermal lens effect, does not influence the stability of the pump laser cavity, similarly, thermal lens effect of laser gain media will not affect the stability of the Raman reso nator.…”

Passively Q-switched a-cut Nd:YVO4 self-Raman laser

“…Recently, eye safe 1538 nm Raman laser [6], EO Q switched Nd:YAG/KGd(WO 4 ) 2 Raman laser [7], AO Q switched Nd:YAG/KLu(WO 4 ) 2 1178 nm Raman laser [8] and passively Q switched Nd 3+ :Y 2 SiO 5 self Raman [9] have been reported. Yellow and yellow green light sources have been achived in earlier works [10][11][12][13][14]. In 2001, YVO 4 crystal is found to be a prom ising material suitable for SRS [15].…”

555 nm laser sources based on intracavity frequency doubling of Nd:YGG laser

“…550-600 nm light sources have received interest because of their potential technical applications in medicine, testing, color display and other areas [9][10][11][12][13][14][15][16][17][18][19][20]. In particular, diode pumped solid state lasers have been established as efficient and compact light sources for these applications.…”