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1. 发明申请

WO2015166229A1 OPTICAL AMPLIFIER 审中-公开
标题翻译：光放大器
公开(公告)号：WO2015166229A1
公开(公告)日：2015-11-05
申请号：PCT/GB2015/051232
申请日：2015-04-28
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： MALCOLM, Graeme Peter Alexander , HAMILTON, Craig James
IPC分类号： H01S5/04 , H01S5/183 , H01S5/50 , H01S5/024
CPC分类号： H01S5/041 , H01S5/02484 , H01S5/183 , H01S5/18361 , H01S5/187 , H01S5/34 , H01S5/50
摘要： An optical amplifier is described. The optical amplifier (1) comprises a semiconductor disk gain medium (2) including at least one quantum well layer (9) and a pump field source (17) for generating an optical pump field (3) for the semiconductor disk gain medium. The optical amplifier acts to generate an output optical field (5) from an input optical field (4) received by the optical amplifier and arranged to be incident upon the semiconductor disk gain medium. Employing a semiconductor disk gain medium within the optical amplifier allows it to be optically pumped and thus provided for increased stability and beam quality of the output optical field while allowing for the design of optical amplifiers which can operate across a broad range of wavelengths. The optical amplifier may be employed with continuous wave or pulsed input optical fields.
摘要翻译：描述了光放大器。光放大器（1）包括半导体盘增益介质（2），其包括至少一个量子阱层（9）和泵场源（17），用于产生用于半导体盘增益介质的光泵场（3）。光放大器用于从由光放大器接收的输入光场（4）产生输出光场（5），并布置成入射到半导体盘增益介质上。在光放大器内使用半导体盘增益介质允许其被光学泵浦，并且因此提供用于提高输出光场的稳定性和光束质量，同时允许设计可在宽范围波长范围内工作的光放大器。光放大器可以采用连续波或脉冲输入光场。

2. 发明申请

WO2015159106A3 IMPROVED PASSIVELY MODE-LOCKING SEMICONDUCTOR DISK LASER (SDL) 审中-公开
公开(公告)号：WO2015159106A3
公开(公告)日：2015-10-22
申请号：PCT/GB2015/051176
申请日：2015-04-20
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： HAMILTON, Craig James , MALCOLM, Graeme Peter Alexander
IPC分类号： H01S5/14
摘要： A passively mode-locking laser and corresponding method is described. The laser comprises a resonator (2) terminated by first (3) and second (4) mirrors and folded by a third (5) and fourth (6) mirror. The third mirror comprises a reflector (14) surmounted by a multilayer semiconductor gain medium (15) including at least one quantum well layer while the second mirror (4) comprises an intensity saturable mirror. The resonator is configured to provide a cross sectional area of an intra cavity resonating field on the intensity saturable mirror that is greater than or equal to a cross sectional area of the intra cavity resonating field on the multilayer semiconductor gain medium. This arrangement provides a passively mode-locking laser that exhibits increased stability when compared to those systems known in the art.

3. 发明申请

WO2015087072A1 IMPROVED SELF MODE-LOCKING SEMICONDUCTOR DISK LASER (SDL) 审中-公开
标题翻译：改进的自锁式半导体激光器（SDL）
公开(公告)号：WO2015087072A1
公开(公告)日：2015-06-18
申请号：PCT/GB2014/053658
申请日：2014-12-10
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： MALCOLM, Graeme Peter Alexander , HAMILTON, Craig James
IPC分类号： H01S3/098 , H01S5/14 , H01S3/08 , H01S3/081 , H01S3/094 , H01S3/0941 , H01S5/024 , H01S5/183 , H01S5/04
CPC分类号： H01S5/141 , H01S3/08059 , H01S3/0813 , H01S3/0816 , H01S3/094053 , H01S3/09415 , H01S3/1112 , H01S3/1118 , H01S5/02415 , H01S5/02476 , H01S5/02484 , H01S5/041 , H01S5/0657 , H01S5/125 , H01S5/14 , H01S5/18383 , H01S5/34 , H01S2301/02
摘要： A self mode locking laser and corresponding method is described. The laser comprises a resonator (2) terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a reflector (15) surmounted by a multilayer semiconductor gain medium (16) that includes at least one quantum well layer and an optical Kerr lensing layer (20). A perturbator is also included that provides a means to induce a perturbation on an intensity of one or more cavity modes of the resonator. The pertubator is employed to induce a small perturbation on the intensity of the cavity modes of the resonator which is sufficient for the optical Kerr lensing layer to induce mode locking on the output field. The second mirror (4) comprises an intensity saturable mirror that provides a means for reducing the pulse widths of the generated output field e.g. to around 100 fs. A diamond heat spreader (20) is attached to the top of the half VCSEL gain medium (13) for improved cooling as well as representing the Kerr medium. Further folding mirrors (6-8) may be inserted to adjust the degree of astigmatism to be compensated for by the Kerr effect used for mode-locking.
摘要翻译：描述了自锁式激光器及相应的方法。激光器包括由第一（3）和第二（4）反射镜端接并由第三反射镜（5）折叠的谐振器（2）。第三反射镜包括由包括至少一个量子阱层和光学克尔透镜层（20）的多层半导体增益介质（16）所覆盖的反射器（15）。还包括一种扰动器，其提供了一种在谐振器的一个或多个空腔模式的强度上引起扰动的手段。采用穿孔器对谐振器的腔模的强度诱发小的扰动，这足以使光学克尔透镜层在输出场上引起模式锁定。第二镜（4）包括强度可饱和镜，其提供用于减小所产生的输出场的脉冲宽度的装置，例如，到100 fs左右金刚石散热器（20）附接到半VCSEL增益介质（13）的顶部，以改善冷却以及表示克尔介质。可以插入另外的折叠镜（6-8），以通过用于模式锁定的克尔效应来调节散光程度来补偿。

4. 发明申请

WO2015063478A1 MODE-LOCKING SEMICONDUCTOR DISK LASER (SDL) 审中-公开
标题翻译：模式锁定半导体激光器（SDL）
公开(公告)号：WO2015063478A1
公开(公告)日：2015-05-07
申请号：PCT/GB2014/053214
申请日：2014-10-29
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： HAMILTON, Craig James , MALCOLM, Graeme Peter Alexander
IPC分类号： H01S3/11 , H01S5/14 , H01S5/183 , H01S3/08 , H01S5/024 , H01S3/081 , H01S3/0941 , H01S5/04 , H01S5/12
CPC分类号： H01S5/0657 , H01S3/08059 , H01S3/0813 , H01S3/09415 , H01S3/1118 , H01S5/02484 , H01S5/041 , H01S5/12 , H01S5/1221 , H01S5/125 , H01S5/141 , H01S5/18383 , H01S2301/02
摘要： The present invention describes a mode locking semiconductor disk laser (SDL). The laser comprises a resonator terminated by first and second mirrors (6,7) and folded by a third mirror. The third mirror comprising a semiconductor disk laser (8) suitable for generating a resonator field comprising a predetermined central wavelength A O while the second mirror comprising an intensity saturable mirror (7) suitable for mode locking the resonator field at the predetermined wavelength. The reflectivity of the of the resonator at the central wavelength A O is reduced by shifting the reflectivity profiles of the first and or second mirrors to wavelength shorter than the predetermined wavelength so as to suppress gain at wavelengths longer than the central wavelength A O . By mismatching the reflectivity profile (32) of the second mirror (7) to that of the desired output wavelength (3) provides a stable mode locked laser with significantly reduced noise. The SDL may comprise a DBR with a reflectivity profile (1) having a peak wavelength corresponding to the laser emission (3). The gain medium comprises a RPG structure of the active region resulting in a Fabry-Perot with a FSR as indicated by the corresponding reflectivity profile (2). The peak reflection of the DBR of the saturable absorber mirror may be shifted towards shorter wavelengths with respect to the laser emission by an amount corresponding to one half to one FSR of said RPG active region.
摘要翻译：本发明描述了一种模式锁定半导体盘激光器（SDL）。激光器包括由第一和第二反射镜（6,7）端接并由第三反射镜折叠的谐振器。第三反射镜包括适于产生包括预定中心波长AO的谐振器场的半导体盘激光器（8），而第二反射镜包括适于将谐振器场的模式锁定在预定波长的强度可饱和镜（7）。通过将第一和/或第二反射镜的反射率分布移动到比预定波长短的波长来减小谐振器在中心波长AO处的反射率，以便抑制长于中心波长AO的波长的增益。通过使第二反射镜（7）的反射率分布（32）与期望输出波长（3）的反射率分布（32）不匹配，提供了具有显着降低的噪声的稳定模式锁定激光器。 SDL可以包括具有对应于激光发射（3）的峰值波长的反射率分布（1）的DBR。增益介质包括有源区域的RPG结构，得到具有如对应的反射率分布（2）所示的FSR的法布里 - 珀罗（Fabry-Perot）。可饱和吸收反射镜的DBR的峰值反射可以相对于激光发射的较短波长移动相当于所述RPG有源区域的一半到一个FSR的量。

5. 发明申请

WO2014191758A1 METHOD AND APPARATUS FOR MOUNTING A SEMICONDUCTOR DISK LASER (SDL) 审中-公开
标题翻译：用于安装半导体激光器（SDL）的方法和装置
公开(公告)号：WO2014191758A1
公开(公告)日：2014-12-04
申请号：PCT/GB2014/051654
申请日：2014-05-30
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： HAMILTON, Craig James , MAKER, Gareth Thomas
IPC分类号： H01S5/024 , H01S3/23 , H01S5/183 , H01S5/022
CPC分类号： H01S5/02469 , H01S3/0604 , H01S3/2308 , H01S5/0222 , H01S5/02256 , H01S5/02423 , H01S5/02476 , H01S5/02484 , H01S5/183 , H01S5/50
摘要： The present invention describes a method and apparatus for mounting a semiconductor disc laser (SDL). In particular there is described a cooling apparatus assembly (12) for mounting the semiconductor disc laser (1) the cooling apparatus assembly comprising a crystalline heat spreader (8) made of diamond, sapphire or SiC and optically contacted to the SDL (1). The apparatus further comprises a heatsink (13) made of copper and a recess (16) located on a first surface (15) of the heatsink. A pliable filler material (17) which may be In or an In alloy is provided within the recess (16) such that when a sealing plate (19) is fastened to the heatsink the SDL (1) is hermetically sealed within the recess. Hermetically sealing the SDL within the recess is found to significantly increase the lifetime of the device comprising the SDL. The heat sink (13) may be water cooled with pipes (14) delivering the water. In case the sealing plate (19) is made from for example Invar, it has an aperture (20).
摘要翻译：本发明描述了一种用于安装半导体盘式激光器（SDL）的方法和装置。特别地，描述了一种用于安装半导体盘式激光器（1）的冷却装置组件（12），该冷却装置组件包括由金刚石，蓝宝石或SiC制成的结晶散热器（8），并与SDL（1）光学接触。该装置还包括由铜制成的散热器（13）和位于散热器的第一表面（15）上的凹部（16）。可以在凹部（16）内设置可以为In或In合金的柔性填充材料（17），使得当密封板（19）紧固到散热器时，SDL（1）被气密地密封在凹部内。发现在凹槽内密封SDL显着增加了包括SDL的设备的使用寿命。散热器（13）可以用输送水的管道（14）进行水冷却。在密封板（19）由例如殷钢制成的情况下，其具有孔（20）。

6. 发明申请

WO2013144620A1 SELF MODE - LOCKING SEMICONDUCTOR DISK LASER 审中-公开
标题翻译：自锁模式 - 锁定半导体磁盘激光器
公开(公告)号：WO2013144620A1
公开(公告)日：2013-10-03
申请号：PCT/GB2013/050800
申请日：2013-03-27
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： HAMILTON, Craig James , MALCOLM, Graeme Peter Alexander , KORNASZESKI, Lukasz
IPC分类号： H01S3/11 , H01S5/183 , H01S5/14 , H01S5/065 , H01S5/024 , H01S3/094 , H01S5/04 , H01S3/081
CPC分类号： H01S3/0813 , H01S3/0805 , H01S3/0817 , H01S3/086 , H01S3/094053 , H01S3/1112 , H01S5/02484 , H01S5/041 , H01S5/0657 , H01S5/1075 , H01S5/141 , H01S5/183 , H01S5/34
摘要： The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper- state lifetime of one or more semiconductor carriers located within the gain medium.
摘要翻译：本发明描述了一种自锁式激光器和一种自锁式激光器的方法。激光器（1）包括由第一（3）和第二（4）反射镜端接并由第三反射镜（5）折叠的谐振器。第三反射镜包括单个分布式布拉格反射器（17），其上安装有多层半导体增益介质（18），并且其包括至少一个量子阱层和光学克尔透镜层（22）。可以通过配置激光谐振器来实现自锁定，使得克尔透镜层的透镜效应用于减少有意引入空腔模式的象散。可以通过选择谐振器的长度来进一步增强激光器的自锁定，使得腔模式的往返时间与位于增益介质内的一个或多个半导体载体的上限寿命相匹配。

7. 发明申请

WO2013144619A1 SELF MODE - LOCKING SEMICONDUCTOR DISK LASER 审中-公开
标题翻译：自锁模式 - 锁定半导体盘片激光器
公开(公告)号：WO2013144619A1
公开(公告)日：2013-10-03
申请号：PCT/GB2013/050799
申请日：2013-03-27
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： HAMILTON, Craig James , MALCOLM, Graeme Peter Alexander , KORNASZESKI, Lukasz
IPC分类号： H01S3/11 , H01S5/183 , H01S5/14 , H01S5/065 , H01S5/024 , H01S3/094 , H01S5/04 , H01S3/081 , H01S3/08
CPC分类号： H01S5/2228 , H01S3/0805 , H01S3/0813 , H01S3/0816 , H01S3/094053 , H01S3/1112 , H01S5/02484 , H01S5/041 , H01S5/065 , H01S5/0657 , H01S5/141 , H01S5/183
摘要： The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper- state lifetime of one or more semiconductor carriers located within the gain medium.
摘要翻译：本发明描述了一种自锁模激光器和一种用于自锁模激光器的方法。激光器（1）包括由第一（3）和第二（4）反射镜终止并由第三反射镜（5）折叠的谐振器。第三反射镜包括单个分布式布拉格反射器（17），其上安装有多层半导体增益介质（18）并且包括至少一个量子阱层和光学克尔透镜层（22）。自锁模可以通过配置激光谐振器来实现，使得克尔透镜层的透镜效应起到减小故意引入腔模的散光的作用。可以通过选择谐振器的长度来进一步增强激光器的自锁模，使得谐振腔模式的往返行程时间与位于增益介质内的一个或多个半导体载体的高态寿命相匹配。 p>

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