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1. 发明申请

US20110216790A1 Apparatus for providing optical radiation 审中-公开
公开(公告)号：US20110216790A1
公开(公告)日：2011-09-08
申请号：US13109630
申请日：2011-05-17
申请人： Michael Kevan Durkin , Stephen Roy Norman , Fabio Ghiringhelli , David Neil Payne , Louise Mary Brendan Hickey , Jayanta Kumar Sahu , Mikhail Nickolaos Zervas , Andy Piper , Andrew Michael Gillooly
发明人： Michael Kevan Durkin , Stephen Roy Norman , Fabio Ghiringhelli , David Neil Payne , Louise Mary Brendan Hickey , Jayanta Kumar Sahu , Mikhail Nickolaos Zervas , Andy Piper , Andrew Michael Gillooly
IPC分类号： H01S3/10
CPC分类号： H01S3/06754 , G02B6/024 , H01S3/0014 , H01S3/0064 , H01S3/06712 , H01S3/06716 , H01S3/06733 , H01S3/094007 , H01S3/094076 , H01S3/09415 , H01S3/10015 , H01S3/10038 , H01S3/1618 , H01S3/1691 , H01S3/1693 , H01S3/176 , H01S5/065 , H01S5/0656 , H01S2301/03 , H01S2301/08
摘要： In one embodiment, a photo-darkening resistant optical fibre includes a waveguide having a numerical aperture less than 0.15. The waveguide includes a core having a refractive index n1 and a pedestal having a refractive index n2, and wherein the fibre includes a first cladding having a refractive index n3 surrounding the pedestal, wherein n1 is greater than n2, n2 is greater than n3. The core includes silica, a concentration of alumina of between approximately 0.3 to 0.8 mole percent, a concentration of phosphate of substantially 15 mole percent, a concentration of ytterbium substantially in the range 20000 to 45000 ppm. The pedestal can include silica, phosphate and germania. The core can have substantially zero thulium dopant.

2. 发明申请

US20110206074A1 Apparatus for providing optical radiation 审中-公开
标题翻译：用于提供光辐射的装置
公开(公告)号：US20110206074A1
公开(公告)日：2011-08-25
申请号：US13098234
申请日：2011-04-29
申请人： Michael Kevan Durkin , Stephen Roy Norman , Fabio Ghiringhelli , David Neil Payne , Louise Mary Brendan Hickey , Jayanta Kumar Sahu , Mikhail Nickolaos Zervas , Andy Piper , Andrew Michael Gillooly
发明人： Michael Kevan Durkin , Stephen Roy Norman , Fabio Ghiringhelli , David Neil Payne , Louise Mary Brendan Hickey , Jayanta Kumar Sahu , Mikhail Nickolaos Zervas , Andy Piper , Andrew Michael Gillooly
IPC分类号： H01S3/10
CPC分类号： H01S3/06754 , G02B6/024 , H01S3/0014 , H01S3/0064 , H01S3/06712 , H01S3/06716 , H01S3/06733 , H01S3/094007 , H01S3/094076 , H01S3/09415 , H01S3/10015 , H01S3/10038 , H01S3/1618 , H01S3/1691 , H01S3/1693 , H01S3/176 , H01S5/065 , H01S5/0656 , H01S2301/03 , H01S2301/08
摘要： In one embodiment, a photo-darkening resistant optical fibre includes a waveguide having a numerical aperture less than 0.15. The waveguide includes a core having a refractive index n1 and a pedestal having a refractive index n2, and wherein the fibre includes a first cladding having a refractive index n3 surrounding the pedestal, wherein n1 is greater than n2, n2 is greater than n3. The core includes silica, a concentration of alumina of between approximately 0.3 to 0.8 mole percent, a concentration of phosphate of substantially 15 mole percent, a concentration of ytterbium substantially in the range 20000 to 45000 ppm. The pedestal can include silica, phosphate and germania. The core can have substantially zero thulium dopant.
摘要翻译：在一个实施例中，耐光变光纤包括数值孔径小于0.15的波导。波导包括具有折射率n1的芯和具有折射率n2的基座，并且其中光纤包括具有围绕基座的折射率n3的第一包层，其中n1大于n2，n2大于n3。核心包括二氧化硅，约0.3至0.8摩尔％的氧化铝浓度，基本上为15摩尔％的磷酸盐浓度，基本上在20000至45000ppm范围内的镱的浓度。基座可以包括二氧化硅，磷酸盐和锗酸盐。核可以具有基本上零的ium掺杂剂。

3. 发明授权

US07936796B2 Apparatus for providing optical radiation 有权
标题翻译：用于提供光辐射的装置
公开(公告)号：US07936796B2
公开(公告)日：2011-05-03
申请号：US11803036
申请日：2007-05-11
申请人： Michael Kevan Durkin , Stephen Roy Norman , Fabio Ghiringhelli , David Neil Payne , Louise Mary Brendan Hickey , Jayanta Kumar Sahu , Mikhail Nickolaos Zervas , Andy Piper , Andrew Michael Gillooly
发明人： Michael Kevan Durkin , Stephen Roy Norman , Fabio Ghiringhelli , David Neil Payne , Louise Mary Brendan Hickey , Jayanta Kumar Sahu , Mikhail Nickolaos Zervas , Andy Piper , Andrew Michael Gillooly
IPC分类号： H01S3/30
CPC分类号： H01S3/06754 , G02B6/024 , H01S3/0014 , H01S3/0064 , H01S3/06712 , H01S3/06716 , H01S3/06733 , H01S3/094007 , H01S3/094076 , H01S3/09415 , H01S3/10015 , H01S3/10038 , H01S3/1618 , H01S3/1691 , H01S3/1693 , H01S3/176 , H01S5/065 , H01S5/0656 , H01S2301/03 , H01S2301/08
摘要： In one embodiment, a photo-darkening resistant optical fiber includes a waveguide having a numerical aperture less than 0.15. The waveguide includes a core having a refractive index n1 and a pedestal having a refractive index n2, and wherein the fiber includes a first cladding having a refractive index n3 surrounding the pedestal, wherein n1 is greater than n2, n2 is greater than n3. The core includes silica, a concentration of alumina of between approximately 0.3 to 0.8 mole percent, a concentration of phosphate of substantially 15 mole percent, a concentration of ytterbium substantially in the range 20000 to 45000 ppm. The pedestal can include silica, phosphate and germania. The core can have substantially zero thulium dopant.
摘要翻译：在一个实施例中，耐光变光纤包括数值孔径小于0.15的波导。波导包括具有折射率n1的芯和具有折射率n2的基座，并且其中光纤包括具有围绕基座的折射率n3的第一包层，其中n1大于n2，n2大于n3。核心包括二氧化硅，约0.3至0.8摩尔％的氧化铝浓度，基本上为15摩尔％的磷酸盐浓度，基本上在20000至45000ppm范围内的镱的浓度。基座可以包括二氧化硅，磷酸盐和锗酸盐。核可以具有基本上零的ium掺杂剂。

4. 发明申请

US20090016387A1 Apparatus for providing optical radiation 有权
标题翻译：用于提供光辐射的装置
公开(公告)号：US20090016387A1
公开(公告)日：2009-01-15
申请号：US11803036
申请日：2007-05-11
申请人： Michael Kevan Durkin , Stephen Roy Norman , Fabio Ghiringhelli , David Neil Payne , Louise Mary Brendan Hickey , Jayanta Kumar Sahu , Mikhail Nickolaos Zervas , Andy Piper , Andrew Michael Gillooly
发明人： Michael Kevan Durkin , Stephen Roy Norman , Fabio Ghiringhelli , David Neil Payne , Louise Mary Brendan Hickey , Jayanta Kumar Sahu , Mikhail Nickolaos Zervas , Andy Piper , Andrew Michael Gillooly
IPC分类号： H01S5/026 , H01S5/10 , H01S3/10
CPC分类号： H01S3/06754 , G02B6/024 , H01S3/0014 , H01S3/0064 , H01S3/06712 , H01S3/06716 , H01S3/06733 , H01S3/094007 , H01S3/094076 , H01S3/09415 , H01S3/10015 , H01S3/10038 , H01S3/1618 , H01S3/1691 , H01S3/1693 , H01S3/176 , H01S5/065 , H01S5/0656 , H01S2301/03 , H01S2301/08
摘要： In one embodiment, a photo-darkening resistant optical fibre includes a waveguide having a numerical aperture less than 0.15. The waveguide includes a core having a refractive index n1 and a pedestal having a refractive index n2, and wherein the fibre includes a first cladding having a refractive index n3 surrounding the pedestal, wherein n1 is greater than n2, n2 is greater than n3. The core includes silica, a concentration of alumina of between approximately 0.3 to 0.8 mole percent, a concentration of phosphate of substantially 15 mole percent, a concentration of ytterbium substantially in the range 20000 to 45000 ppm. The pedestal can include silica, phosphate and germania. The core can have substantially zero thulium dopant.
摘要翻译：在一个实施例中，耐光变光纤包括数值孔径小于0.15的波导。波导包括具有折射率n1的芯和具有折射率n2的基座，并且其中光纤包括具有围绕基座的折射率n3的第一包层，其中n1大于n2，n2大于n3。核心包括二氧化硅，约0.3至0.8摩尔％的氧化铝浓度，基本上为15摩尔％的磷酸盐浓度，基本上在20000至45000ppm范围内的镱的浓度。基座可以包括二氧化硅，磷酸盐和锗酸盐。核可以具有基本上零的ium掺杂剂。

5. 发明授权

US08605762B2 Laser apparatus 有权
标题翻译：激光设备
公开(公告)号：US08605762B2
公开(公告)日：2013-12-10
申请号：US13261394
申请日：2011-02-10
申请人： Michael Kevan Durkin , Malcolm Paul Varnham , Mikhail Nickolaos Zervas
发明人： Michael Kevan Durkin , Malcolm Paul Varnham , Mikhail Nickolaos Zervas
IPC分类号： H01S3/13
CPC分类号： H01S5/4006 , H01S3/067 , H01S3/06729 , H01S3/06737 , H01S3/06741 , H01S3/094007 , H01S3/09408 , H01S3/09415
摘要： Laser apparatus (1) comprising a reference source (2), a reference fiber (3), and at least one laser diode (4), wherein the reference fiber (3) comprises a core (5) having a refractive index n1 and a first cladding (6) having a refractive index n2, the first cladding (6) is surrounded by a second cladding (7) having a refractive index n3, the refractive index n1 is greater than the refractive index n2, the refractive index n2 is greater than the refractive index n3, the laser diode (4) emits laser radiation (8) that is guided through the first cladding (6) of the reference fiber (3), the reference source (2) emits reference radiation (9) that has a predetermined wavelength λR (10), the reference radiation (9) is guided through the core (5) of the reference fiber (3) to the laser diode (4), and the reference radiation (9) that is guided through the core (5) of the reference fiber (3) to the laser diode (4) has a power (11) at the predetermined wavelength λR (10), which power is greater than an injection locking threshold of the laser diode.
摘要翻译：包括参考源（2），参考光纤（3）和至少一个激光二极管（4）的激光设备（1），其中参考光纤（3）包括具有折射率n1的芯（5）和第一包层（6）具有折射率n2，第一包层（6）由折射率n3的第二包层（7）包围，折射率n1大于折射率n2，折射率n2较大激光二极管（4）发射通过参考光纤（3）的第一包层（6）引导的激光辐射（8），参考源（2）发射参考辐射（9），其具有预定波长λR（10），参考辐射（9）被引导通过参考光纤（3）的芯（5）到激光二极管（4），并且被引导通过芯的参考辐射（9）参考光纤（3）到激光二极管（4）的（5）具有处于预定波长λR（10）的功率（11） s大于激光二极管的注入锁定阈值。

6. 发明申请

US20120300797A1 LASER APPARATUS 有权
标题翻译：激光装置
公开(公告)号：US20120300797A1
公开(公告)日：2012-11-29
申请号：US13261394
申请日：2011-02-10
申请人： Michael Kevan Durkin , Malcolm Paul Varnham , Mikhail Nickolaos Zervas
发明人： Michael Kevan Durkin , Malcolm Paul Varnham , Mikhail Nickolaos Zervas
IPC分类号： H01S3/30
CPC分类号： H01S5/4006 , H01S3/067 , H01S3/06729 , H01S3/06737 , H01S3/06741 , H01S3/094007 , H01S3/09408 , H01S3/09415
摘要： Laser apparatus (1) comprising a reference source (2), a reference fibre (3), and at least one laser diode (4), wherein the reference fibre (3) comprises a core (5) having a refractive index n1 and a first cladding (6) having a refractive index n2, the first cladding (6) is surrounded by a second cladding (7) having a refractive index n3, the refractive index n1 is greater than the refractive index n2, the refractive index n2 is greater than the refractive index n3, the laser diode (4) emits laser radiation (8) that is guided through the first cladding (6) of the reference fibre (3), the reference source (2) emits reference radiation (9) that has a predetermined wavelength λR (10), the reference radiation (9) is guided through the core (5) of the reference fibre (3) to the laser diode (4), and the reference radiation (9) that is guided through the core (5) of the reference fibre (3) to the laser diode (4) has a power (11) at the predetermined wavelength λR (10), which power is greater than an injection locking threshold of the laser diode.
摘要翻译：包括参考源（2），参考光纤（3）和至少一个激光二极管（4）的激光设备（1），其中参考光纤（3）包括具有折射率n1的芯（5）和第一包层（6）具有折射率n2，第一包层（6）由折射率n3的第二包层（7）包围，折射率n1大于折射率n2，折射率n2较大激光二极管（4）发射通过参考光纤（3）的第一包层（6）引导的激光辐射（8），参考源（2）发射参考辐射（9），其具有预定波长λR（10），参考辐射（9）通过参考光纤（3）的芯（5）被引导到激光二极管（4），并且通过芯引导的参考辐射（9）（3）的激光二极管（5）具有在预定波长λR（10）的功率（11），该功率是绿色的 r比激光二极管的注入锁定阈值。

7. 发明授权

US06947641B2 Apparatus for filtering optical radiation at an operating wavelength 有权
标题翻译：用于在工作波长处过滤光辐射的装置
公开(公告)号：US06947641B2
公开(公告)日：2005-09-20
申请号：US10494844
申请日：2002-11-06
申请人： Michael Kevan Durkin , Mikhail Nickolaos Zervas
发明人： Michael Kevan Durkin , Mikhail Nickolaos Zervas
IPC分类号： G02B6/02 , G02B6/34
CPC分类号： G02B6/02085 , G02B6/0208
摘要： Apparatus for filtering optical radiation at an operating wavelength (19), which apparatus comprises a grating (1) written into a waveguide (2), and which grating (1) has a first end (3), a second end (91), a first bandwidth (24), a maximum re-flectivity (29), a first group delay variation (17) defined with respect to the first end (3), and a second group delay variation (18) defined with respect to the second end (91), wherein the first and second group delay variations (17), (18) are with respect to the first bandwidth (24), the maximum reflectivity (29) is greater than 50%, the first group delay variation (17) is between 0.1 ps and 100 ps, and the second group delay variation (18) is between 0.1 ps and 100 ps.
摘要翻译：用于在工作波长（19）处对光辐射进行滤波的装置，该装置包括写入波导管（2）中的光栅（1），以及哪个光栅（1）具有第一端（3），第二端（91）第一带宽（24），最大反射率（29），相对于第一端（3）限定的第一组延迟变化（17）和相对于第二端限定的第二组延迟变化（18）（91），其中第一组延迟变化（17），（18）相对于第一带宽（24），最大反射率（29）大于50％，第一组延迟变化（17））在0.1ps和100ps之间，第二组延迟变化（18）在0.1ps和100ps之间。

8. 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）。

9. 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）。

10. 发明授权

US07120339B2 Polarization-dependent optical fibre amplifier 有权
标题翻译：偏振相关光纤放大器
公开(公告)号：US07120339B2
公开(公告)日：2006-10-10
申请号：US10528895
申请日：2003-09-25
申请人： Malcolm Paul Varnham , Paul William Turner , Mikhail Nickolaos Zervas
发明人： Malcolm Paul Varnham , Paul William Turner , Mikhail Nickolaos Zervas
IPC分类号： G02B6/02
CPC分类号： G02B6/024 , G02B6/02314 , H01S3/06708 , H01S3/06712
摘要： An optical fibre including a waveguide and at least one stress applying region is described. The waveguide is defined by a numerical aperture, and the stress applying region is defined by a depressed refractive index. The optical fibre is configured such that the waveguide supports at least two polarised fundamental modes, two polarized first second-order modes, and two polarised second second-order modes. The waveguide includes comprises a gain medium. The stress applying region, the waveguide and the disposition of the gain medium are such as to provide preferential guidance to at least one of the modes at an operating wavelength.
摘要翻译：描述了包括波导和至少一个应力施加区域的光纤。波导由数值孔径限定，并且应力施加区域由凹陷的折射率定义。光纤被配置为使得波导支持至少两个极化基本模式，两个偏振的第一二阶模式和两个极化的第二二阶模式。波导包括增益介质。应力施加区域，波导和增益介质的布置使得能够对工作波长的至少一种模式提供优先引导。

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