Self-frequency-doubled vibronic yellow Yb:YCOB laser at the wavelength of 570  nm.

A watt-level self-frequency-doubled yellow laser at the 570 nm wavelength was realized by taking advantage of the vibronic emission of a Yb3+ doped calcium yttrium oxoborate (Yb:YCOB) crystal cut along the optimized direction out of the principal planes with the maximum effective nonlinear coefficient. Fluorescence spectroscopic properties of Yb:YCOB were studied, which showed that it had broad and anisotropic vibronic emission with a small peak at ∼1130  nm. By suppressing the electronic emission, the polarized vibronic Yb:YCOB radiation was realized with the fundamental wavelength shifting from 1130 nm to 1140 nm. By employing the self-frequency-doubling behavior of Yb:YCOB, the self-frequency-doubled yellow laser was achieved with a maximum output power of 1.08 W at 570 nm. This work provides an unprecedented and efficient way to generate yellow lasers with a compact microchip structure that may have promising applications in some regimes including medicine, entertainment, and scientific research.

[1]  Emmi Kantola,et al.  High-efficiency 20 W yellow VECSEL. , 2014, Optics express.

[2]  S. Bowman,et al.  Diode pumped yellow dysprosium lasers. , 2012, Optics express.

[3]  P. Dekker,et al.  1.1 W CW self-frequency-doubled diode-pumped Yb:YAl3(BO3)4 laser , 2001 .

[4]  V. Krishnakumar,et al.  Polarised infrared and Raman studies of YCa4O(BO3)3 a non-linear optical single crystal. , 2004, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[5]  L. Johnson,et al.  Electronic- and phonon-terminated laser emission from Ho 3+ in BaY 2 F 8 , 1974 .

[6]  F. Gan,et al.  Determination of emission cross section of Yb3+ in glasses by the reciprocity method , 1997 .

[7]  J. Folk,et al.  Direct and feeder vessel photocoagulation of retinal angiomas with dye yellow laser. , 1990, Ophthalmology.

[8]  Fredrik Laurell,et al.  Efficient all solid-state continuous-wave yellow-orange light source. , 2005, Optics express.

[9]  D. Mccumber,et al.  Theory of Phonon-Terminated Optical Masers , 1964 .

[10]  Toshiaki Tanaka,et al.  Lasing operation up to 200 K in the wavelength range of 570–590 nm by GaInP/AlGaInP double‐heterostructure laser diodes on GaAsP substrates , 1995 .

[11]  F. Balembois,et al.  Spectroscopic properties and laser performances of Yb:YCOB and potential of the Yb:LaCOB material , 2001 .

[12]  Jing Li,et al.  Widely tunable yellow-green lasers based on the self-frequency-doubling material Yb:YAB , 2003 .

[13]  Tanner,et al.  Vibronic intensities in the absorption spectra of Yb3+ , 1996, Physical review. B, Condensed matter.

[14]  Peter Brick,et al.  Yellow AlGaInP/InGaP laser diodes achieved by pressure and temperature tuning , 2008 .

[15]  B. Aull,et al.  Vibronic interactions in Nd:YAG resulting in nonreciprocity of absorption and stimulated emission cross sections , 1982 .

[16]  Lloyd L. Chase,et al.  Evaluation of absorption and emission properties of Yb/sup 3+/ doped crystals for laser applications , 1993 .

[17]  Mark J. Kushner,et al.  Large‐bore copper‐vapor lasers: Kinetics and scaling issues , 1983 .

[18]  Donald T. Gavel,et al.  Image improvement from a sodium-layer laser guide star adaptive optics system , 1997 .

[19]  Tomi Leinonen,et al.  Optically Pumped Edge-Emitting GaAs-Based Laser With Direct Orange Emission , 2014, IEEE Photonics Technology Letters.

[20]  Zhengping Wang,et al.  Efficient high-power self-frequency-doubling Nd:GdCOB laser at 545 and 530 nm. , 2011, Optics letters.

[21]  Keith J. Blow,et al.  Theoretical description of transient stimulated Raman scattering in optical fibers , 1989 .

[22]  Marquis,et al.  Mode coupling in a vibronic laser. , 1989, Physical review. A, General physics.

[23]  Jiao Y. Y. Lin,et al.  Determination of the nonlinear optical coefficients of YCa 4 O(BO 3 ) 3 crystal , 2000 .

[24]  I T McKinnie,et al.  Tunable visible solid-state lasers based on intracavity frequency doubling of Cr:forsterite in KTP. , 1999, Optics letters.