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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:US07502391B2
公开(公告)日:2009-03-10
申请号:US10566222
申请日:2004-07-28
申请人: Malcolm Paul Varnham , Mikhail Nicholaos Zervas , David Neil Payne , Lars Johan Albinsson Nilsson
发明人: Malcolm Paul Varnham , Mikhail Nicholaos Zervas , David Neil Payne , Lars Johan Albinsson Nilsson
CPC分类号: H01S3/10092 , H01S3/06729 , H01S3/06754 , H01S3/094007 , H01S3/09403 , H01S3/09408 , H01S3/0941 , H01S3/1608 , H01S3/1618
摘要: Apparatus for providing optical radiation includes a pump source and at least one first amplifying waveguide. The first amplifying waveguide emits optical radiation in excess of 1400 nm when pumped by the pump source. In one embodiment, the pump source can include a plurality of laser diodes and a plurality of second amplifying waveguides. In this arrangement the first amplifying waveguide is pumped by the second amplifying waveguides, the second amplifying waveguides are pumped by the laser diodes, and the second amplifying waveguides are configured to improve the beam quality of radiation emitted by the laser diodes.
摘要翻译: 用于提供光辐射的装置包括泵浦源和至少一个第一放大波导。 当泵浦泵浦时,第一放大波导发射超过1400nm的光辐射。 在一个实施例中,泵浦源可以包括多个激光二极管和多个第二放大波导。 在这种布置中,第一放大波导由第二放大波导泵浦,第二放大波导由激光二极管泵浦,第二放大波导被配置成提高由激光二极管发射的辐射的光束质量。
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公开(公告)号:US06226308B1
公开(公告)日:2001-05-01
申请号:US09029219
申请日:1998-10-26
申请人: Bryce Neilson Samson , Daniel William Hewak , Richard Ian Laming , David Neil Payne , William Simon Brocklesby
发明人: Bryce Neilson Samson , Daniel William Hewak , Richard Ian Laming , David Neil Payne , William Simon Brocklesby
IPC分类号: H01S317
CPC分类号: C03C3/321 , C03C4/0071 , C03C13/043 , H01S3/06716 , H01S3/1613
摘要: An optical fibre amplifier, laser or superluminescent source, consisting of a chalcogenide glass matrix hosting trivalent rare earth ions and which is doped with oxide in the form of a metallic oxide. The device utilizes the properties of the added oxide to improve the fabrication and efficiency of optical waveguide sources, in particular for applications around 1.3 &mgr;m. Specifically, the oxide broadens the wavelength range for pump absorption, broadens the wavelength range for light emission, increases the device efficiency through a change in lifetime of certain laser levels and modifies properties of the glass to prevent crystallization during fiber fabrication. The device exploits the intentional addition of oxide to improve amplifier, laser, glass and fiber properties.
摘要翻译: 一种光纤放大器,激光或超发光源,由承载三价稀土离子的硫族化物玻璃基质组成,并掺杂有金属氧化物形式的氧化物。 该器件利用添加的氧化物的性质来改善光波导源的制造和效率,特别是对于1.3μm左右的应用。 具体地,氧化物扩大了泵吸收的波长范围,拓宽了发光的波长范围,通过某些激光水平的寿命的改变提高了器件效率,并改变了玻璃的性能以防止光纤制造过程中的结晶。 该器件利用有意添加氧化物以改善放大器,激光器,玻璃和光纤的性能。
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公开(公告)号:US5936762A
公开(公告)日:1999-08-10
申请号:US727542
申请日:1997-02-26
CPC分类号: H01S3/06716 , H01S3/1606 , H01S3/1698 , H01S3/17
摘要: The core of a low phonon energy glass optical fibre is doped with trivalent Dysprosium ions for application as an efficient optical fibre amplifier operating around 1.3 .mu.m. The device utilises the transition .sup.6 H.sub.9/2 -.sup.6 F.sub.11/2 to .sup.6 H.sub.15/2. The low phonon energy (high quantum efficiency) glasses include mixed halides, chalcogenides and chalcohalides. Improvements in efficiency can be achieved by co-doping of the fibre core with Eu.sup.3+ and/or Tb.sup.3+ ions.
摘要翻译: PCT No.PCT / GB95 / 00928 Sec。 371日期1997年2月26日 102(e)日期1997年2月26日PCT提交1995年4月22日PCT公布。 出版物WO95 / 29522 日期:1995年11月2日低声子能量玻璃光纤的核心掺杂有三价镝离子,作为操作约1.3μm的高效光纤放大器。 该器件利用了6H9 / 2-6F11 / 2到6H15 / 2的转换。 低声子能量(高量子效率)玻璃包括混合卤化物,硫属化物和卤代卤化物。 可以通过用Eu 3+和/或Tb 3+离子共掺杂纤维芯来实现效率的提高。
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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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16.
公开(公告)号:US20100284660A1
公开(公告)日:2010-11-11
申请号:US12311142
申请日:2007-09-18
申请人: Faisal Rafiq Mahamd Adikan , Andrew Simon Webb , Corin Barry Edmund Gawith , Peter George Robin Smith , David Neil Payne , Jayanta Kumar Sahu
发明人: Faisal Rafiq Mahamd Adikan , Andrew Simon Webb , Corin Barry Edmund Gawith , Peter George Robin Smith , David Neil Payne , Jayanta Kumar Sahu
CPC分类号: G02B6/132 , C03B19/1469 , C03B2201/34 , G02B6/12007
摘要: A method of producing a planar substrate having waveguide channels, which method comprises: (i) providing a tube (6) of a substrate material; (ii) depositing silica layers (110) on the inside of the tube (6), the silica layers (110) being doped with a photosensitive material; (iii) drawing the tube (6) so that the cross-sectional size of the tube (109) is reduced; (iv) before or after the reducing of the cross-sectional size of the tube (6), causing the tube (6) to collapse into a flat shape by applying a low pressure to the tube, whereby the deposited silica layers together form a photosensitive silica layer (111); (v) cutting to required lengths the tube (6) which has been collapsed and reduced in cross-sectional size; and (vi) using laser writing to define waveguide channels in the cut lengths of the tube (6) and thereby to produce the planar substrate having the waveguide channels.
摘要翻译: 一种制造具有波导通道的平面基板的方法,该方法包括:(i)提供基板材料的管(6); (ii)在所述管(6)的内部沉积二氧化硅层(110),所述二氧化硅层(110)掺杂感光材料; (iii)拉伸管(6),使得管(109)的横截面尺寸减小; (iv)在减小管(6)的横截面尺寸之前或之后,通过对管施加低压使管(6)塌陷成平坦形状,由此沉积的二氧化硅层一起形成 光敏二氧化硅层(111); (v)切割所需的长度,其已经被折叠并且具有横截面尺寸减小的管(6); 和(vi)使用激光写入来限定管(6)的切割长度中的波导通道,从而产生具有波导通道的平面基板。
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公开(公告)号:US07321710B2
公开(公告)日:2008-01-22
申请号:US10544551
申请日:2004-02-06
IPC分类号: G02B6/02
CPC分类号: H01S3/2383 , G02B6/4201 , G02B6/4206 , H01S3/067 , H01S3/06729 , H01S3/06741 , H01S3/094003 , H01S3/094015 , H01S3/094019 , H01S3/094042 , H01S3/094061 , H01S3/09408
摘要: Apparatus for providing optical radiation (10) comprising a pump array (8) for providing pump radiation (7), a first pump combiner (1), and a waveguide (3), wherein the pump radiation (7) from the pump array (8) is coupled into the waveguide (3) via the first pump combiner (1), and wherein the waveguide (3) comprises a pump guide (4) for guiding the pump radiation (7), and a gain medium (5) which emits the optical radiation (10) when it is pumped by the pump radiation (7).
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公开(公告)号:US06993258B2
公开(公告)日:2006-01-31
申请号:US09931286
申请日:2001-08-16
IPC分类号: H04J14/02
CPC分类号: H04J14/02 , H01S3/094003 , H01S3/09408 , H01S3/2383 , H04B10/506 , H04B10/564
摘要: A WDM transmitter comprising an array of M pump lasers multiplexed by an M×N multiplexer, in the form of a coupler, and used to feed an array of N optically pumped fiber lasers emitting at wavelengths λ1, λ2, . . . λN. The parameter M determines the number of pump lasers as well as the number of inputs of the pump-multiplexing coupler and can be smaller or equal to parameter N that determines the number of optically pumped lasers. The fiber laser outputs are passed through N isolators before entering N modulators were the signals are monolithically modulated. The outputs of the modulators are passed through an array of N tunable attenuators. Finally all the individual channel outputs are recombined into a single output in a combiner. The output will typically lead to an optical network. The proposed architecture may also be used for optical amplifiers, especially fiber-based optical amplifiers.
摘要翻译: 一种WDM发射机,包括由耦合器形式的MxN多路复用器复用的M个泵浦激光器的阵列,并用于馈送发射波长λ1,λ2的N个光泵浦光纤激光器的阵列, SUB> 2 SUB>。 。 。 λ SUB>。 参数M确定泵浦激光器的数量以及泵复用耦合器的输入数量,并且可以小于或等于确定光学泵浦激光器的数量的参数N. 光纤激光输出在进入N个调制器之前通过N个隔离器,信号是单片调制的。 调制器的输出通过N个可调衰减器的阵列。 最后,所有单个通道输出被重新组合成组合器中的单个输出。 输出通常会导致光网络。 所提出的架构也可以用于光放大器,特别是基于光纤的光放大器。
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公开(公告)号:US06498669B1
公开(公告)日:2002-12-24
申请号:US09029667
申请日:1998-06-01
IPC分类号: H04B1000
CPC分类号: H04B10/25077
摘要: A method of optical pulse propagation via a dispersive optical fibre, the method comprising the steps of: launching the optical pulses into the fibre at a pulse intensity sufficient to provide non-linear dispersion compensation during propagation through a first portion of the fibre; and providing a counter-chirping device to substantially compensate for the dispersion of a remaining, second portion of the fibre.
摘要翻译: 一种通过分散光纤进行光脉冲传播的方法,该方法包括以下步骤:将光脉冲以足以在通过光纤的第一部分传播期间提供非线性色散补偿的脉冲强度发射到光纤中; 以及提供反向啁啾装置以基本上补偿光纤的剩余的第二部分的分散。
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20.
公开(公告)号:US06304711B1
公开(公告)日:2001-10-16
申请号:US09214939
申请日:1999-04-12
IPC分类号: G02B600
CPC分类号: C03C4/0071 , C03C3/325 , C03C13/042 , H01S3/06716 , H01S3/1611 , H01S3/173
摘要: Neodymium-doped fluoroaluminate optical glass has a composition: 35 to 45 mol % AlF3; 5 to 30 mol % RF2, where R is selected from the group consisting of Ca, Mg, Sr and Ba; 5 to 25 mol % MF, where M is selected from the group consisting of Na, Li, K and Rb; and 0.001 to 10 mol % dopant.
摘要翻译: 钕掺杂的氟铝酸盐光学玻璃的组成为:35〜45摩尔%的AlF 3; 5〜30mol%的RF2,其中R选自Ca,Mg,Sr和Ba; 5〜25mol%MF,其中M选自Na,Li,K和Rb; 和0.001〜10摩尔%的掺杂剂。
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