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    • 102. 发明申请
    • HIGH EFFICIENCY INTRACAVITY DOUBLED LASER AND METHOD
    • 高效率入侵激光和方法
    • WO99018639A1
    • 1999-04-15
    • PCT/US1998/018957
    • 1998-09-10
    • H01S3/098H01S3/109
    • H01S3/109H01S3/08036H01S3/08054
    • An intracavity doubled single longitudinal mode laser is disclosed which provides stable (i.e., low amplitude variation in its output beam intensity), efficient operation. An associated method is also disclosed. A lasant material (36) is positioned in the cavity for producing light at a desired fundamental wavelength and possibly other, unwanted wavelengths. Polarizing means (38) and a type I doubling material (36) are also positioned in the cavity. During operation of the laser, the polarizing means polarizes the desired fundamental wavelength as well as the unwanted wavelengths of light produced by the lasant material. The type I doubling material then produces output wavelengths at twice the frequency of any wavelengths passing therethrough. The type I doubling material and the polarizing means are arranged such that they cooperate in a way which causes the unwanted wavelengths to be subjected to losses which result in the unwanted wavelengths being extinguished while the desired fundamental wavelength is subjected to a level of loss above a lasing threshold so that the desired fundamental wavelength lases, thereby producing the desired output wavelength. In one aspect of the invention, blue light may be produced as the output wavelength.
    • 公开了腔内加倍的单纵模式激光器,其提供稳定的(即,其输出光束强度的低振幅变化),有效的操作。 还公开了一种相关联的方法。 一种农药材料(36)位于空腔中,用于产生所需基本波长和可能的其它不需要的波长的光。 极化装置(38)和I型加倍材料(36)也位于空腔中。 在激光器的操作期间,偏振装置使希望的基本波长以及由惰性材料产生的光的不需要的波长偏振。 然后,I型倍增材料产生两倍于通过其中的任何波长的频率的输出波长。 I型倍增材料和偏振装置被布置成使得它们以使得不想要的波长受到损耗的方式配合,这导致不期望的波长被熄灭,同时期望的基本波长受到高于 激光阈值使得所需的基本波长发光,从而产生期望的输出波长。 在本发明的一个方面,可以产生蓝光作为输出波长。