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1. 发明申请

US20110194166A1 APPARATUS FOR COMBINING LASER RADIATION 有权
标题翻译：用于组合激光辐射的装置
公开(公告)号：US20110194166A1
公开(公告)日：2011-08-11
申请号：US12998438
申请日：2009-10-23
申请人： Malcom Paul Varnham , Mikhail Nickolaos Zervas , Fabio Ghiringhelli , Andrew Thomas Harker
发明人： Malcom Paul Varnham , Mikhail Nickolaos Zervas , Fabio Ghiringhelli , Andrew Thomas Harker
IPC分类号： G02F1/01 , H01S3/067 , G02F2/00
CPC分类号： H01S3/2383 , H01S3/0085 , H01S3/06758 , H01S3/10015 , H01S3/1301 , H01S3/1304 , H01S3/1305 , H01S3/1307 , H01S2301/03
摘要： Apparatus for combining laser radiation (1) 5 which apparatus comprises a seed laser (2), a splitter (3), a plurality of amplifier chains (4), a reference amplifier chain (7), detection means (5). demodulator means (6), and phase control means (12), wherein each of the amplifier chains (4) comprises at least one optical amplifier (11), optical radiation (17) emitted from the seed laser (2) is split into the plurality of amplifier chains (4) by the splitter (3). amplified by the plurality of amplifier chains (4), interfered, detected by the detection means (5), demodulated by the demodulator means (6), and a signal (27) indicative of path length imbalance (14) fed back to the phase control means (12), and wherein the apparatus is characterised in that the output power emitted by each amplifier chain (4) is at least 50 W, the bandwidth (8) of the seed laser (2) is at least 1 GHz, and the path length difference (14) between each amplifier chain (4) and the reference amplifier chain (7) is less than the coherence length (10) of the seed laser (2).
摘要翻译：用于组合激光辐射（1）5的装置，该装置包括种子激光器（2），分束器（3），多个放大器链（4），参考放大器链（7），检测装置（5）。解调器装置（6）和相位控制装置（12），其中每个放大器链（4）包括至少一个光放大器（11），从种子激光器（2）发射的光辐射（17）被分成多个放大器链（4）由分离器（3）组成。由所述多个放大器链（4）放大，由所述检测装置（5）检测到被所述解调器装置（6）解调的干扰，以及指示反馈到所述相位的路径长度不平衡（14）的信号（27）控制装置（12），其特征在于，每个放大器链（4）发射的输出功率至少为50W，种子激光器（2）的带宽（8）至少为1GHz，以及每个放大器链（4）和参考放大器链（7）之间的路径长度差（14）小于种子激光器（2）的相干长度（10）。

2. 发明授权

US08520306B2 Apparatus for combining laser radiation 有权
标题翻译：用于组合激光辐射的装置
公开(公告)号：US08520306B2
公开(公告)日：2013-08-27
申请号：US12998438
申请日：2009-10-23
申请人： Malcolm Paul Varnham , Mikhail Nickolaos Zervas , Fabio Ghiringhelli , Andrew Thomas Harker
发明人： Malcolm Paul Varnham , Mikhail Nickolaos Zervas , Fabio Ghiringhelli , Andrew Thomas Harker
IPC分类号： G02B27/10 , G02F1/01
CPC分类号： H01S3/2383 , H01S3/0085 , H01S3/06758 , H01S3/10015 , H01S3/1301 , H01S3/1304 , H01S3/1305 , H01S3/1307 , H01S2301/03
摘要： Apparatus for combining laser radiation (1) 5 which apparatus comprises a seed laser (2), a splitter (3), a plurality of amplifier chains (4), a reference amplifier chain (7), detection means (5). demodulator means (6), and phase control means (12), wherein each of the amplifier chains (4) comprises at least one optical amplifier (11), optical radiation (17) emitted from the seed laser (2) is split into the plurality of amplifier chains (4) by the splitter (3). amplified by the plurality of amplifier chains (4), interfered, detected by the detection means (5), demodulated by the demodulator means (6), and a signal (27) indicative of path length imbalance (14) fed back to the phase control means (12), and wherein the apparatus is characterized in that the output power emitted by each amplifier chain (4) is at least 50 W, the bandwidth (8) of the seed laser (2) is at least 1 GHz, and the path length difference (14) between each amplifier chain (4) and the reference amplifier chain (7) is less than the coherence length (10) of the seed laser (2).
摘要翻译：用于组合激光辐射（1）5的装置，该装置包括种子激光器（2），分束器（3），多个放大器链（4），参考放大器链（7），检测装置（5）。解调器装置（6）和相位控制装置（12），其中每个放大器链（4）包括至少一个光放大器（11），从种子激光器（2）发射的光辐射（17）被分成多个放大器链（4）由分离器（3）组成。由所述多个放大器链（4）放大，由所述检测装置（5）检测到被所述解调器装置（6）解调的干扰，以及指示反馈到所述相位的路径长度不平衡（14）的信号（27）控制装置（12），其特征在于，每个放大器链（4）发射的输出功率至少为50W，种子激光器（2）的带宽（8）至少为1GHz，以及每个放大器链（4）和参考放大器链（7）之间的路径长度差（14）小于种子激光器（2）的相干长度（10）。

3. 发明授权

US5917648A Packaged optical amplifier assembly 失效
标题翻译：封装光放大器组件
公开(公告)号：US5917648A
公开(公告)日：1999-06-29
申请号：US750671
申请日：1997-03-20
申请人： Andrew Thomas Harker
发明人： Andrew Thomas Harker
IPC分类号： G02B6/26 , G02B6/42 , G02F1/09 , H01S3/067 , H01S3/0941 , G02B6/40 , H01S3/06
CPC分类号： H01S3/06704 , G02F1/093 , H01S3/06754 , G02B6/2746 , G02B6/4246 , H01S3/0941
摘要： A packaged optical amplifier assembly includes an erbium doped silica based optical amplifying fiber (330) co-pumped and counter-pumped by a pair of laser diodes (336) as optical pumps. The optical pumps (336) are each coupled to an end (332, 340) of the fiber (330) by reflection from a dichroic mirror (328), the optical signal being collimated and arranged to propagate unguided between the input (306) and the first end (332), and the second end (340) and the output (346), and optical pump light from each optical pump (336) being collimated and arranged to propagate unguided between the optical pump (336) and the end of the fiber (332, 340) to which it is coupled.
摘要翻译： PCT No.PCT / GB95 / 01407 Sec。 371日期1997年3月20日 102（e）日期1997年3月20日PCT提交1995年6月16日PCT公布。公开号WO95 / 35590 日期1995年12月28日封装的光放大器组件包括由作为光泵的一对激光二极管（336）共泵浦和反相泵浦的掺铒二氧化硅基光学放大光纤（330）。光泵（336）各自通过来自分色镜（328）的反射而耦合到光纤（330）的端部（332,340），该光信号被准直并布置成在输入（306）和第一端（332）和第二端（340）和输出端（346），并且来自每个光泵（336）的光泵浦光被准直和布置成在光泵（336）和光泵与其耦合的光纤（332,340）。

4. 发明授权

US06424765B1 Optical device and method of making the same 失效
标题翻译：光学装置及其制作方法
公开(公告)号：US06424765B1
公开(公告)日：2002-07-23
申请号：US08656280
申请日：1996-09-16
申请人： Andrew Thomas Harker
发明人： Andrew Thomas Harker
IPC分类号： G02B626
CPC分类号： G02B6/4203 , G02B6/262 , G02B6/4207
摘要： An optical device includes an optical waveguide with a block that is fusion spliced to one end. The block has a refractive index approximately equal to the effective refractive index of the waveguide and is of such a length that substantially all the light exiting the waveguide propagates directly to the end of the block remote from the waveguide.
摘要翻译：光学装置包括具有与一端熔接的块的光波导。该块具有大约等于波导的有效折射率的折射率，并且具有这样的长度，即基本上所有离开波导的所有光直接传播到远离波导的块的端部。

5. 发明授权

US06882780B2 Wavelength tuneable optical device 有权
标题翻译：波长可调光学器件
公开(公告)号：US06882780B2
公开(公告)日：2005-04-19
申请号：US10245421
申请日：2002-09-17
申请人： Christopher Anthony Park , Richard Mark Ash , Andrew Thomas Harker , Paul Marshall Charles
发明人： Christopher Anthony Park , Richard Mark Ash , Andrew Thomas Harker , Paul Marshall Charles
IPC分类号： G02B6/12 , G02B6/122 , G02F1/315 , H01S5/0625 , H01S5/10 , H01S5/50 , G02B6/26
CPC分类号： B82Y20/00 , G02B6/12004 , G02B6/12007 , G02B6/1225 , G02F1/315 , H01S5/06258 , H01S5/105 , H01S5/1071 , H01S5/5054 , H01S5/509
摘要： An optical device having a photonic band gap element operative such that the refractive index can be varied through application of an electrical signal. This enables the manufacture of tuneable lasers, optical add/drop multiplexers and tuneable optical wavelength converters.
摘要翻译：一种具有光子带隙元件的光学器件，其操作使得可以通过施加电信号来改变折射率。这使得可以制造可调激光器，光分插复用器和可调谐光波长转换器。

6. 发明授权

US07710581B2 Wavelength monitoring method and apparatus and method of making same 有权
标题翻译：波长监测方法及其制作方法
公开(公告)号：US07710581B2
公开(公告)日：2010-05-04
申请号：US12169867
申请日：2008-07-09
申请人： Andrew Thomas Harker
发明人： Andrew Thomas Harker
IPC分类号： G01B9/02
CPC分类号： H01S5/0687 , H01S5/005 , H01S5/02248
摘要： A wavelength of an optical source is monitored by first and second adjacent detectors on a common base. A bulk reflective component has first and second partially reflective surfaces that respectively direct first and second portions of energy from the source to the first and second detectors. A wavelength discriminator is positioned between the first detector and first surface. An optical isolator downstream of the reflective component prevents radiation from the source and exiting the component from being coupled to the detectors and back to the source.
摘要翻译：光源的波长由公共基座上的第一和第二相邻检测器监测。体反射部件具有分别将第一和第二部分能量从源极引导到第一和第二检测器的第一和第二部分反射表面。波长鉴别器位于第一检测器和第一表面之间。在反射部件下游的光隔离器防止来自源的辐射和离开组件的耦合到检测器并返回到源。

7. 发明授权

US06590693B2 Light modulation 有权
标题翻译：光调制
公开(公告)号：US06590693B2
公开(公告)日：2003-07-08
申请号：US09861981
申请日：2001-05-16
申请人： Richard Mark Ash , Christopher Anthony Park , Andrew Thomas Harker
发明人： Richard Mark Ash , Christopher Anthony Park , Andrew Thomas Harker
IPC分类号： G02F103
CPC分类号： H01S5/06804 , G02F1/0123 , H01S5/02 , H01S5/0265 , H01S5/125 , H04B10/505
摘要： The present invention relates to a modulated light source, in particular for use as part of an opto-electronic communication network. The modulated light source has a laser and an external electro-optic modulator for modulating the intensity of light produced by the laser. A temperature sensor senses the temperature of the laser and the modulator. A control circuit connected to the temperature sensor adjusts the bias on the modulator so that the band edge of the modulator follows the changes in wavelength of the laser as the laser warms up during operation. This avoids the need for a cooling element to keep the temperature of the laser constant.
摘要翻译：本发明涉及调制光源，特别是用作光电通信网络的一部分。调制光源具有用于调制由激光产生的光的强度的激光和外部电光调制器。温度传感器检测激光器和调制器的温度。连接到温度传感器的控制电路调节调制器上的偏置，使得当操作期间激光加热时，调制器的带边缘跟随激光器的波长的变化。这避免了冷却元件需要保持激光器的温度恒定。

8. 发明授权

US5940557A Optical fibre microlens and optical radiation source employing the same 失效
标题翻译：光纤微透镜和采用其的光辐射源
公开(公告)号：US5940557A
公开(公告)日：1999-08-17
申请号：US892961
申请日：1997-07-16
申请人： Andrew Thomas Harker
发明人： Andrew Thomas Harker
IPC分类号： G02B6/32 , G02B3/00 , G02B6/02 , G02B6/25 , G02B6/36 , G02B6/38 , G02B6/42 , G02B13/08
CPC分类号： G02B6/3636 , G02B6/25 , G02B6/4203 , G02B6/4207 , G02B6/3616 , G02B6/3822
摘要： Embodiments of the present invention provide optical fibre microlenses having anamorphic focusing means which have a major axis which is not perpendicular to the longitudinal axis of the optical fibre. In particular, a wedge-shaped optical fibre microlens whose tip is skewed with respect to the longitudinal axis of the optical fibre, is described. Such optical fibre microlenses find particular application in coupling light from semiconductor lasers having asymmetrical output radiation patterns, since they increase the coupling efficiency and reduce the level of back reflection from the microlens to the laser. This is of particular importance for semiconductor lasers used to pump optical fibre amplifiers.
摘要翻译：本发明的实施例提供了具有变形聚焦装置的光纤微透镜，其具有不垂直于光纤纵轴的长轴。特别地，描述了其尖端相对于光纤的纵向轴线倾斜的楔形光纤微透镜。这种光纤微透镜特别适用于耦合具有不对称输出辐射图的半导体激光器的光，因为它们增加了耦合效率并降低了从微透镜到激光器的背反射水平。这对于用于泵浦光纤放大器的半导体激光器尤其重要。

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