Phase matching in harmonic laser apparatus including a MgO:LiNbO

Details Phase matching in harmonic laser apparatus including a MgO:LiNbO Phase matching in harmonic laser apparatus including a MgO:LiNbO

1990-06-21

1992-01-28

Lee, John D.

Coherent light generators

Particular beam control device

Nonlinear device

H03F 700

Patent

active

050848798

ABSTRACT:
In response to fundamental laser light, a LiNbO.sub.3 crystal emits second harmonic laser light. A phase matching angle of 90 degrees is obtained at room temperature by using a LiNbO.sub.3 crystal doped with MgO at a proper concentration. In the case where fundamental laser light of 1064 nm is applied from a Nd-YAG laser, the concentration of MgO should be about 1.0 mol % or about 7.5 mol %.

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Oka et al., "Stable Intracavity Doubling of Orthogonal Linearly Polarized Modes in Diode-Pumped Nd:YAG Lasers", Optics Letters, vol. 13, No. 10, Oct. 1988, pp. 805-807.
Kozlovsky et al., "Efficient Second Harmonic Generation of a Diode-Laser-Pumped CW Nd:YAG Laser Using Monolithic MgO:LiNbO3 External Resonant Cavities", IEEE Journal of Quantum Electronics, vol. 24, No. 6, Jun. 1988, pp. 913-919.

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