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公开(公告)号：US20110194166A1
公开(公告)日：2011-08-11
申请号：US12998438
申请日：2009-10-23
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）。
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公开(公告)号：US08520306B2
公开(公告)日：2013-08-27
申请号：US12998438
申请日：2009-10-23
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）。
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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.
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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。
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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
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。
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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。
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