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    • 6. 发明授权
    • Method for oscillating an optical vortex laser and optical vortex laser oscillation device
    • 用于振荡光学漩涡激光和光学旋涡激光振荡装置的方法
    • US09172205B2
    • 2015-10-27
    • US14124409
    • 2012-06-07
    • Takashige OmatsuKatsuhiko Miyamoto
    • Takashige OmatsuKatsuhiko Miyamoto
    • G02F1/35H01S3/108G02F1/39H01S3/00
    • H01S3/1083G02F1/39G02F2202/20H01S3/0092
    • Provided is an optical vortex laser oscillation device which is capable of an increased out and can generate an optical vortex even in a wide frequency range and if the optical vortex has a quantum number which is not an integer. A laser device according to one embodiment of the present application comprises: a laser light source for generating laser light; an optical vortex generation unit for generating an energized optical vortex on the basis of the laser light generated by the laser light source; and an optical resonance unit for resonating the energized optical vortex generated by the optical vortex generation unit and dividing the energized optical vortex into signal light and idler light. Therein, it is preferable that the optical resonance unit comprises a non-liner medium and a pair of resonator mirrors sandwiching the non-linear medium, and it is preferable that the non-linear medium includes at least one among KTiOPO4, periodically polarization-reversed LiNbO3, and periodically polarization-reversed LiTaO3.
    • 本发明提供一种光学旋涡激光振荡装置,即使在宽的频率范围内也能够产生光漩涡,如果光学涡流的量子数不是整数即可。 根据本申请的一个实施例的激光装置包括:用于产生激光的激光光源; 光学漩涡产生单元,用于基于由激光光源产生的激光产生通电的光涡旋; 以及光学谐振单元,用于使由所述光学涡流产生单元产生的激励光学漩涡谐振,并且将所述通电的光学涡流分成信号光和空转光。 其中,优选的是,所述光学谐振单元包括非线性介质和夹持所述非线性介质的一对谐振镜,并且所述非线性介质优选地包括KTiOPO4中的至少一种,周期性地偏振反转 LiNbO3,周期性极化反转LiTaO3。
    • 8. 发明授权
    • Wide-band ultrashort-pulse optical oscillator utilizing chirped pulse amplification
    • 使用啁啾脉冲放大的宽带超短脉冲光学振荡器
    • US07907332B2
    • 2011-03-15
    • US12227724
    • 2007-05-24
    • Kiminori KondoTakashige Omatsu
    • Kiminori KondoTakashige Omatsu
    • G02F1/35H01S3/08
    • G02F1/3532G02F2001/3542G02F2001/392H01S3/08059H01S3/0813H01S3/1112H01S2301/08
    • A wide-band ultrashort-pulse optical oscillator includes: an optical amplification medium 1 that optically amplifies an incident light having a wide band or a plurality of bands so as to be converted into an oscillation light emitted from an optical resonator; an energy injection element 2 that either injects energy into the optical amplification medium so that light energy is generated, or injects light energy into the optical amplification medium; a negative dispersion element 4 that imparts a negative dispersion to a pulse light of the oscillation light; a mode locker 9 that produces a mode-locking with respect to the pulse light; a positive dispersion element 11 that imparts a positive dispersion to the pulse light; and an optical system formed so that the pulse light passes through a loop-like optical path from the optical amplification medium via the negative dispersion element, the mode locker, and the positive dispersion element, back to the optical amplification medium in at least one of the stated direction and an opposite direction. With this, it is possible to generate an ultrashort-pulse light in a wide band, with a high degree of efficiency.
    • 宽带超短脉冲光学振荡器包括:光放大介质1,其光放大具有宽带或多个带的入射光,以便转换成从光谐振器发出的振荡光; 能量注入元件2,其将能量注入到光学放大介质中,使得产生光能,或将光能注入到光学放大介质中; 赋予振荡光的脉冲光的负色散的负色散元件4; 相对于脉冲光产生模式锁定的模式锁存器9; 向脉冲光赋予正色散的正色散元件11; 以及光学系统,其形成为使得脉冲光经由负色散元件,模式锁定器和正色散元件从光学放大介质通过环状光路返回至光学放大介质中的至少一个 所指出的方向和相反的方向。 由此,可以高效率地生成宽带的超短脉冲光。