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1. 发明申请

US20160322786A1 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：US20160322786A1
公开(公告)日：2016-11-03
申请号：US15103358
申请日：2014-12-10
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： Graeme Peter Alexander MALCOLM , Craig James HAMILTON
IPC分类号： H01S5/14 , H01S5/34 , H01S3/11 , H01S3/081 , H01S5/024 , H01S5/125 , H01S5/065 , H01S3/08
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）连接到半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。

2. 发明申请

US20170047707A1 OPTICAL AMPLIFIER 有权
标题翻译：光放大器
公开(公告)号：US20170047707A1
公开(公告)日：2017-02-16
申请号：US15306820
申请日：2015-04-28
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： Craig James HAMILTON , Graeme Peter Alexander MALCOLM
IPC分类号： H01S5/04 , H01S5/024 , H01S5/187 , H01S5/183 , H01S5/50 , H01S5/34
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），其包括用于产生用于半导体盘增益介质的光泵场（3）的至少一个量子阱层（9）和泵浦场源（17）。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。

3. 发明申请

US20160254645A1 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：US20160254645A1
公开(公告)日：2016-09-01
申请号：US15032405
申请日：2014-10-29
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： Craig James HAMILTON , Graeme Peter Alexander MALCOLM
IPC分类号： H01S5/065 , H01S5/125 , 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 or comprising a semiconductor disk laser (8) suitable for generating a resonator field comprising a predetermined central wavelength A0 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 A0 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 A0. 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。第三镜或包括适于产生包括预定中心波长A0的谐振器场的半导体盘激光器（8），而第二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）。谐振器在中心波长A0处的反射率通过将第一和/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，以便抑制比中心波长A0长的波长的增益。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。

4. 发明申请

US20170187162A1 IMPROVED PASSIVELY MODE-LOCKING SEMICONDUCTOR DISK LASER (SDL) 有权
公开(公告)号：US20170187162A1
公开(公告)日：2017-06-29
申请号：US15304905
申请日：2015-04-20
申请人： SOLUS TECHNOLOGIES LIMITED
发明人： Craig James HAMILTON , Graeme Peter Alexander MALCOLM
IPC分类号： H01S3/11 , H01S3/081 , H01S5/343 , H01S5/14 , H01S5/183 , H01S5/04 , H01S5/024
CPC分类号： H01S3/1115 , H01S3/0816 , H01S3/0817 , H01S3/1118 , H01S5/02415 , H01S5/02423 , H01S5/02484 , H01S5/041 , H01S5/14 , H01S5/18383 , H01S5/34313 , H01S2304/04
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.

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