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    Wavelength versatile vecsel raman laser
    4.
    发明授权
    Wavelength versatile vecsel raman laser 有权

    公开(公告)号：US09941660B2

    公开(公告)日：2018-04-10

    申请号：US14355734

    申请日：2012-11-09

    申请人： Macquarie University

    发明人： Jipeng Lin ,  Helen M. Pask ,  David James Spence ,  Craig J. Hamilton ,  Graeme P. A. Malcolm

    IPC分类号： H01S3/108 ,  H01S3/30 ,  H01S5/06 ,  H01S5/183 ,  H01S3/109 ,  H01S5/14 ,  H01S3/08 ,  H01S3/082 ,  H01S5/04

    CPC分类号： H01S5/0604 ,  H01S3/08027 ,  H01S3/082 ,  H01S3/1086 ,  H01S3/109 ,  H01S3/30 ,  H01S5/041 ,  H01S5/141 ,  H01S5/142 ,  H01S5/183

    摘要： A tunable lasing device including a vertical external cavity surface emitting laser, adapted to generate a fundamental laser beam in response to pumping from a pump source, said fundamental laser beam having a fundamental wavelength and a fundamental linewidth; a fundamental resonator cavity adapted to resonate the fundamental beam therein; a first optical element located within the fundamental resonator cavity for control of the fundamental linewidth of the fundamental beam; a Raman resonator located at least partially in said fundamental resonator adapted to receive the fundamental beam and comprising therein, a solid state Raman active medium located therein for generating at least a first Stokes beam from the fundamental beam wherein said Raman resonator cavity is adapted to resonate said Stokes beam therein and further adapted to emit an output beam; and further comprising a nonlinear medium located within the Raman resonator cavity for nonlinear frequency conversion of at least one of the beams present in the fundamental or the Raman resonator cavity; said tunable lasing device further comprising an output coupler adapted to emit an output beam, said output beam comprising at least a portion of said frequency converted beam being derived from at least one of the resonating beams in said fundamental or said Raman resonator cavities.

    Quantum-cascade laser
    10.
    发明授权
    Quantum-cascade laser 有权
    量子级联激光器

    公开(公告)号：US09484715B2

    公开(公告)日：2016-11-01

    申请号：US14888999

    申请日：2014-05-19

    申请人： HAMAMATSU PHOTONICS K.K.

    发明人： Kazuue Fujita ,  Tadataka Edamura ,  Naota Akikusa

    IPC分类号： H01S5/34 ,  H01S5/12 ,  H01S5/06 ,  H01S5/30 ,  H01S5/02

    CPC分类号： H01S5/3402 ,  H01S5/0208 ,  H01S5/0604 ,  H01S5/1096 ,  H01S5/12 ,  H01S5/309 ,  H01S2302/02

    摘要： A quantum cascade laser is configured with a semiconductor substrate and first and second active layers provided in series on the substrate. A unit laminate structure of the first active layer has a subband level structure having an emission upper level and an emission lower level, and is configured so as to be able to generate light of a first frequency ω1, a unit laminate structure of the second active layer has a subband level structure having a first emission upper level, a second emission upper level, and a plurality of emission lower levels, and is configured so as to be able to generate light of a second frequency ω2, and light of a difference frequency ω is generated by difference frequency generation from the light of the first frequency ω1 and the light of the second frequency ω2.

    摘要翻译： 量子级联激光器被配置为具有半导体衬底和在衬底上串联设置的第一和第二有源层。 第一有源层的单元层叠结构具有发射上限和发射较低电平的子带电平结构，并且被配置为能够产生第一频率ω1的光，第二有源层的单位层叠结构 层具有具有第一发射上限电平，第二发射上电平和多个发射较低电平的子带电平结构，并且被配置为能够产生第二频率ω2的光，以及差频率 ω由第一频率ω1的光和第二频率ω2的光的差频产生产生。