Characterization of Single-Crystal Synthetic Diamond for Multi-Watt Continuous-Wave Raman Lasers

Abstract

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Spatial and Spectral Effects in Continuous-Wave Intracavity Raman Lasers

“…These lasers have significantly expanded the range of wavelengths that can be generated using standard crystalline laser materials [1]- [3]. In continuous-wave (CW) intracavity Raman lasers [4]- [6], SRS operates in steadystate balance with the laser gain process. The Stokes field provides an effective output coupling for the fundamental field via SRS, just as the doubling process provides the effective output coupling in an intracavity-doubled fundamental laser [7].…”

“…Significant research effort has been focused on characterizing these parameters. Passive crystals that can be measured [6], [11]. The transverse mode profiles [8], [12], [13] and spectral profiles [5], [8], [10], [12] of both the fundamental and Stokes fields must be measured as a function of pump power, as they are affected by the laser dynamics and developing aberrated thermal lenses.…”

Average Power and Brightness Scaling of Diamond Raman Lasers

“…This result represents the first external cavity crystal Raman laser pumped using a CW Nd laser at 1064 nm. The output power is more than three times the highest for a CW crystalline Raman laser, that being for a 5.1 W intracavity diamond Raman laser at 1240 nm (Savitski et al 2012).A detailed description and characterization of a 10 W device has been reported in [1]. The output power increased linearly with input power with slope efficiency 50% as shown inset.…”

Sub-100 ps Monolithic Diamond Raman Laser Emitting at 573 nm

“…While Raman conversion of CW and Q-switched lasers has become routine [3][4][5][6][7], extending the wavelength coverage of ultrafast (pico-and femtosecond) sources is significantly more complex, often requiring synchronous pumping of external cavity Raman lasers to achieve high (>30%) conversion efficiencies [8][9][10][11]. Mode-locked pump sources used in these Raman laser experiments are also rather complex.…”