论文信息 - Brightness enhancement of a solid-state laser using an intra-cavity deformable mirror

Brightness enhancement of a solid-state laser using an intra-cavity deformable mirror

An intra-cavity deformable membrane mirror (DMM) has been used to optimise the brightness of a 15W, diode-pumped, grazing incidence Nd:GdVO4 laser. In one configuration an order of magnitude improvement of laser beam quality was recorded with negligible drop in output power. Local and global optimum-locating algorithms have been developed to enable automatic optimisation of the laser quality, and have been tested in both intra- and extra-cavity configurations. A novel laser brightness sensor based on second-harmonic-generation has also been developed to assess the progress of the laser towards optimisation. A tip & tilt mirror was also incorporated in the laser resonator cavity and initial tailoring of the algorithm procedure was performed in order to enhance the optimisation capabilities.

David Burns | Walter Lubeigt | Gareth J. Valentine

[1] N. Metropolis,et al. The Monte Carlo method. , 1949 .

[2] Allister I. Ferguson,et al. Development of high-average power picosecond laser systems , 2002, SPIE LASE.

[3] D. Hanna,et al. Simple method for reducing the depolarization loss resulting from thermally induced birefringence in solid-state lasers. , 1999, Optics letters.

[4] J. Unternahrer,et al. The slab geometry laser - Part I: Theory , 1984, IEEE Journal of Quantum Electronics.

[5] Walter Koechner,et al. Solid-State Laser Engineering , 1976 .

[6] N. Metropolis,et al. Equation of State Calculations by Fast Computing Machines , 1953, Resonance.

[7] David Burns,et al. Active transverse mode control and optimization of an all-solid-state laser using an intracavity adaptive-optic mirror. , 2002, Optics express.