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41. 发明申请

WO2015106606A1 一种可调谐窄线宽单频线偏振激光器审中-公开
公开(公告)号：WO2015106606A1
公开(公告)日：2015-07-23
申请号：PCT/CN2014/092987
申请日：2014-12-04
申请人：华南理工大学
发明人：徐善辉 , 杨昌盛 , 杨中民 , 冯洲明 , 张勤远 , 姜中宏
IPC分类号： H01S3/067
CPC分类号： H01S3/1055 , H01S3/0064 , H01S3/0401 , H01S3/0405 , H01S3/06708 , H01S3/06712 , H01S3/06716 , H01S3/0675 , H01S3/08027 , H01S3/094042 , H01S3/1028 , H01S3/1062 , H01S3/137 , H01S3/139 , H01S3/1603 , H01S3/1618 , H01S3/175
摘要：一种可调谐窄线宽单频线偏振激光器，激光器包括热沉（13）及封装在热沉（13）上的泵浦源（1）、第一准直透镜（3）、激光后腔镜（4）、热光可调滤波器（5）、第二准直透镜（7）、稀土离子高掺杂多组分玻璃光纤（8）、超结构保偏光纤光栅（9）、保偏光隔离器（11）、保偏光纤（12）和热电制冷器（2，6，10）。采用短直单频谐振腔结构，利用多组分玻璃光纤的高掺杂和高增益特征，再利用热光可调滤波器（5）与超结构保偏光纤光栅（9）的选频作用与波长调谐功能，结合精密温度调节技术，通过实时调节其反射波长与透射波长的分布，致使改变其谱峰重叠位置，从而实现宽调谐范围、线宽极窄、高消光比、高输出功率的连续可调谐式单频线偏振激光的稳定输出。

42. 发明申请

WO2015026327A1 ULTRA HIGH POWER SINGLE MODE FIBER LASER SYSTEM 审中-公开
标题翻译：超高功率单模光纤激光系统
公开(公告)号：WO2015026327A1
公开(公告)日：2015-02-26
申请号：PCT/US2013/055739
申请日：2013-08-20
申请人： IPG PHOTONICS CORPORATION
发明人： GAPONTSEV, Valentin , SAMARTSEV, Igor
IPC分类号： H01S3/067 , H01S3/098
CPC分类号： H01S3/06754 , H01S3/06745 , H01S3/094011 , H01S3/094042 , H01S3/094069 , H01S3/1618 , H01S3/175
摘要： An ultra high power fiber laser system includes a single-piece fiber booster configured with fiber and straight short rod fiber portions which have in common a core configured with a numerical aperture equal to or higher than 0.1 and doped with ions of one or more rare earth elements across the entire cross-section thereof. The rod fiber portion is structured with a short length not exceeding about a few tens of centimeters and has a generally frustoconical cross-section expanding from the uniformly configured fiber portion. The core extending along the fiber portion is capable of supporting either a SM or a very low number of HOMs guided along the core in a propagating direction and coupled into the small diameter end of the rod fiber's frustoconically-shaped core. The opposite, large-diameter end of the frustoconical core supports multiple modes with a fundamental mode overlapping at least about 0.65 2 of the cross-section area of the core along the entire length thereof. The disclosed power system further includes a pump source emitting high power multi-mode pump light which is coupled into the large- diameter end of the core in a counter propagating direction with a NA of at most equal to the NA of the core. The pump is configured to emit pump light with such a density that while amplification of the fundamental mode continues in the overlapped area of the core, a peripheral, non-overlapped area of the core is bleached. As a consequence, the disclosed system emits signal light in substantially a fundamental mode with an average power of several kWs in a CW regime or peak power of about one or more MWs in a pulsed regime of the system's operation.
摘要翻译：超高功率光纤激光器系统包括单纤维增强器，其配置有纤维和直短杆纤维部分，其共同的核心是配置有等于或高于0.1的数值孔径，并掺杂有一个或多个稀土离子元件横跨整个横截面。杆状纤维部分构造成具有不超过几十厘米的短长度，并且具有从均匀构造的纤维部分扩展的大致截头圆锥形横截面。沿着纤维部分延伸的芯能够支撑在传播方向上沿着芯引导的SM或非常少数量的HOM，并耦合到杆状光纤的截头圆锥形芯的小直径端。截头圆锥体的相对的大直径端部支撑多个模式，其基本模式沿核心的整个长度重叠至少约0.652的横截面面积。所公开的电力系统还包括发射大功率多模式泵浦光的泵浦源，该光源以反向传播方向耦合到芯的大直径端，其中NA最大等于芯的NA。泵被配置为以这样的密度发射泵浦光，即当在芯的重叠区域继续放大基模时，芯的外围的非重叠区域被漂白。因此，所公开的系统在CW系统中以几个千瓦的平均功率或大约一个或多个MW的峰值功率以基本上基本模式发射信号光，在系统操作的脉冲状态中。

43. 发明申请

WO2014062759A2 COMPACT ULTRA-SHORT PULSE SOURCE AMPLIFIERS 审中-公开
标题翻译：紧凑型超短脉冲源放大器
公开(公告)号：WO2014062759A2
公开(公告)日：2014-04-24
申请号：PCT/US2013/065169
申请日：2013-10-16
申请人： IMRA AMERICA, INC.
发明人： FERMANN, Martin
IPC分类号： G02F1/35
CPC分类号： H01S3/1106 , B23K26/0624 , H01J49/161 , H01S3/0057 , H01S3/06708 , H01S3/06741 , H01S3/0675 , H01S3/06754 , H01S3/094003 , H01S3/094026 , H01S3/094042 , H01S3/094061 , H01S3/0941 , H01S3/109 , H01S3/1115
摘要： The present invention relates to compact, low noise, ultra-short pulse sources based on fiber amplifiers, and various applications thereof. At least one implementation includes an optical amplification system having a fiber laser seed source producing seed pulses at a repetition rate corresponding to the fiber laser cavity round trip time. A nonlinear pulse transformer, comprising a fiber length greater than about 10 m, receives a seed pulse at its input and produces a spectrally broadened output pulse at its output, the output pulse having a spectral bandwidth which is more than 1.5 times a spectral bandwidth of a seed pulse. A fiber power amplifier receives and amplifies spectrally broadened output pulses. A pulse compressor is configured to temporally compress spectrally broadened pulses amplified by said power amplifier. Applications include micro-machining, ophthalmology, molecular desorption or ionization, mass-spectroscopy, and/or laser- based, biological tissue processing.
摘要翻译：本发明涉及基于光纤放大器的紧凑，低噪声，超短脉冲源及其各种应用。至少一个实施方案包括具有光纤激光种子源的光放大系统，其以对应于光纤激光腔往返时间的重复频率产生种子脉冲。包括光纤长度大于约10微米的非线性脉冲变压器在其输入处接收种子脉冲，并在其输出端产生光谱扩展的输出脉冲，其输出脉冲的频谱带宽大于光谱带宽的1.5倍种子脉冲。光纤功率放大器接收并放大光谱扩展的输出脉冲。脉冲压缩器被配置为在时间上压缩由所述功率放大器放大的频谱变宽的脉冲。应用包括微加工，眼科学，分子解吸或离子化，质谱法和/或基于激光的生物组织处理。

44. 发明申请

WO2013096368A1 HIGH POWER SINGLE MODE FIBER PUMP LASER SYSTEM AT 980 nm. 审中-公开
标题翻译： 980 nm高功率单模光纤激光激光系统。
公开(公告)号：WO2013096368A1
公开(公告)日：2013-06-27
申请号：PCT/US2012/070463
申请日：2012-12-19
申请人： IPG PHOTONICS CORPORATION , GAPONTSEV, Valentin , SAMARTSEV, Igor
发明人： GAPONTSEV, Valentin , SAMARTSEV, Igor
IPC分类号： H01S3/10 , H01S3/067
CPC分类号： H01S3/094003 , H01S3/06733 , H01S3/06745 , H01S3/0675 , H01S3/06754 , H01S3/094019 , H01S3/094042 , H01S3/094053 , H01S3/094069 , H01S3/0941 , H01S3/09415 , H01S3/1608 , H01S3/1611 , H01S3/1618 , H01S3/2375 , H01S2301/02
摘要： A high power pump ultra bright low-noise source is configured with a multimode ("MM") seed source outputting a MM smooth, low-noise signal light at a wavelength λρ in a wavelength range between about 900 and 940 nm, a MM Yb fiber wavelength converter operative to convert emission of a plurality of high power ("HP"') semiconductor laser diodes at a wavelength λρ to a pump output at the desired waveiength λρ. The Yb-doped MM wavelength converter is configured with noise levels substantially identical to and lower than those of the low-noise signal light, brightness ("B") substantially equal to nxB, wherein n is a number HP semiconductor laser diodes, and B is brightness of each TIP laser diode, and output power ("Po") subsiantially equal to nPd, wherein Pd is a power of each HP laser diode, and n is the number thereof.
摘要翻译：高功率泵超亮低噪声源配置有多模（“MM”）种子源，其输出在波长范围在约900和940nm之间的波长为兰德的MM平滑，低噪声信号光，MM Yb 光纤波长转换器，用于将波长为兰德的多个高功率（“HP”）半导体激光二极管的发射转换成所需波长长度的波导的泵输出。 Yb掺杂MM波长转换器配置有与低噪声信号光基本相同且低于低噪声信号光的噪声电平，亮度（“B”）基本上等于nxB，其中n是数量HP半导体激光二极管，B 是每个TIP激光二极管的亮度，并且输出功率（“Po”）等于nPd，其中Pd是每个HP激光二极管的功率，n是其数量。

45. 发明申请

WO2010132482A1 CASCADED RAMAN FIBER LASER SYSTEM BASED ON FILTER FIBER 审中-公开
标题翻译：基于滤波光纤的拉伸光纤激光系统
公开(公告)号：WO2010132482A1
公开(公告)日：2010-11-18
申请号：PCT/US2010/034423
申请日：2010-05-11
申请人： OFS FITEL LLC. , DIGIOVANNI, David, J. , HEADLEY, Clifford, E. , NICHOLSON, Jeffrey, W.
发明人： DIGIOVANNI, David, J. , HEADLEY, Clifford, E. , NICHOLSON, Jeffrey, W.
IPC分类号： H01S3/30
CPC分类号： H01S3/0675 , H01S3/0064 , H01S3/0078 , H01S3/06708 , H01S3/06733 , H01S3/06754 , H01S3/06758 , H01S3/07 , H01S3/08086 , H01S3/094007 , H01S3/094042 , H01S3/094046 , H01S3/09408 , H01S3/094084 , H01S3/09415 , H01S3/1608 , H01S3/1618 , H01S3/2375 , H01S3/302
摘要： A light generation and amplification system includes a length of laser-active filter fiber having a refractive index profile that suppresses unwanted Stokes orders at wavelengths longer than a target wavelength and that has normal dispersion over its operating wavelength. A nested series of reflectors is provided at the fiber's input and output ends, and are configured to provide a nested series of Raman cavities, separated in wavelength by approximately the respective Stokes shifts. The first cavity in the series is a combined cavity that provides laser oscillation due to a combination of ionic gain and feedback at a selected first wavelength and that provides Raman gain to light at the first Stokes shift of the first wavelength when shift at the first wavelength has an energy exceeding a Raman scattering threshold. The Raman cavities provide a stepwise transition between the first wavelength and the target wavelength.
摘要翻译：光生成和放大系统包括一定长度的具有折射率分布的激光有源滤波器光纤，该折射率分布在比目标波长更长的波长处抑制不期望的斯托克斯阶数，并且在其工作波长上具有正常色散。在光纤的输入和输出端提供嵌套系列的反射器，并且被配置成提供一个嵌套的拉曼腔系列，其波长分开大约相应的斯托克斯位移。该系列中的第一个空腔是由于在所选择的第一波长处的离子增益和反馈的组合而提供激光振荡的组合腔，并且当在第一波长的移位时，在第一波长的第一斯托克斯偏移处的光提供拉曼增益具有超过拉曼散射阈值的能量。拉曼腔提供第一波长和目标波长之间的逐步转变。

46. 发明申请

WO2010132466A1 SYSTEMS AND METHODS FOR CASCADED RAMAN LASTING AT HIGH POWER LEVELS 审中-公开
标题翻译：在高功率水平下进行拉锯拉制的系统和方法
公开(公告)号：WO2010132466A1
公开(公告)日：2010-11-18
申请号：PCT/US2010/034406
申请日：2010-05-11
申请人： OFS FITEL LLC, A DELAWARE LIMITED LIABILITY COMPANY , NICHOLSON, Jeffrey, W.
发明人： NICHOLSON, Jeffrey, W.
IPC分类号： H01S3/30
CPC分类号： H01S3/0675 , H01S3/0064 , H01S3/0078 , H01S3/06708 , H01S3/06733 , H01S3/06754 , H01S3/06758 , H01S3/07 , H01S3/08086 , H01S3/094007 , H01S3/094042 , H01S3/094046 , H01S3/09408 , H01S3/094084 , H01S3/09415 , H01S3/1608 , H01S3/1618 , H01S3/2375 , H01S3/302
摘要： In a light amplification system, a fiber-based oscillator, amplifier, and cascaded Raman resonator are coupled together in series. The oscillator output is provided as an input into the amplifier, the amplifier output is provided as a pumping input into the cascaded Raman resonator, and the cascaded Raman resonator provides as an output single-mode radiation at a target wavelength. A loss element is connected between the oscillator and amplifier, whereby the oscillator is optically isolated from the amplifier and cascaded Raman resonator. A filter is coupled between the isolator and the amplifier for filtering out backward-propagating Stokes wavelengths generated in the cascaded Raman resonator. The oscillator is operable within a first power level range, and the amplifier and cascaded Raman resonator are operable within a second power level range exceeding the first power level range.
摘要翻译：在光放大系统中，基于光纤的振荡器，放大器和级联拉曼谐振器串联在一起。振荡器输出作为输入提供给放大器，放大器输出作为泵浦输入提供到级联拉曼谐振器中，级联拉曼谐振器提供目标波长的输出单模辐射。损耗元件连接在振荡器和放大器之间，由此振荡器与放大器和级联拉曼谐振器光学隔离。滤波器耦合在隔离器和放大器之间，用于滤除在级联拉曼谐振器中产生的向后传播的斯托克斯波长。振荡器可在第一功率电平范围内操作，并且放大器和级联拉曼谐振器可在超过第一功率电平范围的第二功率电平范围内工作。

47. 发明申请

WO2010132405A1 FILTER FIBER FOR USE IN RAMAN LASING APPLICATIONS AND TECHNIQUES FOR MANUFACTURING SAME 审中-公开
标题翻译：用于拉曼激光应用的过滤纤维及其制造技术
公开(公告)号：WO2010132405A1
公开(公告)日：2010-11-18
申请号：PCT/US2010/034321
申请日：2010-05-11
申请人： OFS FITEL LLC , NICHOLSON, Jeffrey, W. , WISK, Patrick, W. , YAN, Man, F.
发明人： NICHOLSON, Jeffrey, W. , WISK, Patrick, W. , YAN, Man, F.
IPC分类号： H01S3/30
CPC分类号： H01S3/0675 , H01S3/0064 , H01S3/0078 , H01S3/06708 , H01S3/06733 , H01S3/06754 , H01S3/06758 , H01S3/07 , H01S3/08086 , H01S3/094007 , H01S3/094042 , H01S3/094046 , H01S3/09408 , H01S3/094084 , H01S3/09415 , H01S3/1608 , H01S3/1618 , H01S3/2375 , H01S3/302
摘要： An optical waveguide has a refractive index variation that is structured to provide the fiber, over a wavelength operating range, with an effective area supporting multiple Stokes shifts and with a negative dispersion value at a target wavelength within the wavelength operating range. The refractive index variation is further structured to provide the fiber with a finite LP 01 cutoff at a wavelength longer than the target wavelength, whereby the LP 01 cutoff wavelength provides a disparity, for a selected bending diameter, between macrobending losses at the target wavelength and macrobending losses at wavelengths longer than the target wavelength, whereby Raman scattering is frustrated at wavelengths longer than the target wavelength.
摘要翻译：光波导具有折射率变化，其被构造为在波长工作范围内提供光纤，其中有效面积支持多个斯托克斯位移，并且在波长工作范围内的目标波长处具有负色散值。折射率变化进一步被构造为使光纤在比目标波长更长的波长处提供有限的LP01截止值，由此LP01截止波长为所选弯曲直径提供目标波长的宏弯损耗与宏弯曲损耗之间的差异在比目标波长长的波长处，由此在比目标波长更长的波长处拉曼散射受挫。

48. 发明申请

WO2010076511A1 LASER IMPULSIONNEL A FIBRE OPTIQUE POUR IMPULSIONS SUB-PICOSECONDE DE HAUTE ENERGIE DANS LA BANDE L ET OUTIL LASER POUR CHIRURGIE OPHTALMIQUE 审中-公开
标题翻译：带有用于L带中的高能子皮秒脉冲的光纤的激光激光和用于眼部手术的激光工具
公开(公告)号：WO2010076511A1
公开(公告)日：2010-07-08
申请号：PCT/FR2009/052579
申请日：2009-12-16
申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , MORIN, Franck , HANNA, Marc , DRUON, Frédéric , GEORGES, Patrick
发明人： MORIN, Franck , HANNA, Marc , DRUON, Frédéric , GEORGES, Patrick
IPC分类号： H01S3/067 , H01S3/094 , A61F9/01
CPC分类号： H01S3/0057 , A61F9/00831 , A61F2009/00872 , B23K26/0624 , H01S3/06758 , H01S3/0677 , H01S3/094003 , H01S3/094042 , H01S3/1608 , H01S3/1618 , H01S2302/00 , H01S2303/00
摘要： L'invention concerne un laser impulsionnel (10) à fibre optique et à dérive de fréquence pour l'amplification d'impulsions sub-picoseconde de forte énergie comprenant un oscillateur (1), un étireur à fibre (3), un ou plusieurs étages de pré-amplification et un étage d'amplification de puissance comprenant une section de fibre optique (4, 7) dopée Erbium ou co-dopée Erbium-Ytterbium, une pompe (8) apte à pomper optiquement par couplage dans la fibre optique de l'amplificateur de puissance (7) et un compresseur (9). Selon l'invention, la pompe (8) de l'étage de puissance génère au moins une longueur d'onde de pompe λP comprise entre 1530 et 1565 nm, la longueur d'onde d'émission des impulsions laser (20) est comprise entre 1565 et 1625 nm et l'énergie des impulsions laser (20) est comprise entre 10 nJ et quelques dizaines de μJ. L'invention concerne également un outil pour chirurgie ophtalmique comprenant un tel laser.
摘要翻译：本发明涉及一种具有光纤的脉冲激光器（10）和用于放大高能亚皮秒脉冲的频移，包括振荡器（1），光纤拉伸器（3），一个或多个前置放大级和一个功率放大包括铒掺杂或铒 - 镱共掺杂的光纤部分（4,7），适于通过耦合在功率放大器（7）的光纤中的光泵浦的泵（8）和压缩机（9）。根据本发明，功率级的泵（8）在1530和1565nm之间产生至少一个泵浦波长λP，激光脉冲发射波长（20）在1565和1625nm之间，激光脉冲的能量（ 20）在10nJ和几十μJ之间。本发明还涉及一种包括这种激光的眼科手术工具。

49. 发明申请

WO2009021312A1 LOW-AVERAGE-POWER PARABOLIC PULSE AMPLIFICATION 审中-公开
标题翻译：低平均功率放大脉冲放大
公开(公告)号：WO2009021312A1
公开(公告)日：2009-02-19
申请号：PCT/CA2007/001446
申请日：2007-08-13
申请人： INSTITUT NATIONAL D'OPTIQUE , BRUNET, François , DESBIENS, Louis
发明人： BRUNET, François , DESBIENS, Louis
IPC分类号： H04B10/17 , G02F1/35 , H01S3/067 , H01S3/091
CPC分类号： H01S3/06754 , H01S3/0057 , H01S3/0085 , H01S3/06725 , H01S3/0675 , H01S3/094023 , H01S3/094042 , H01S3/1618 , H01S2301/08
摘要： There is provided a parabolic pulse amplifier for amplifying a pulse light signal. The amplifier comprises an ytterbium-doped amplification waveguide pumped using a pump source with a pump central wavelength substantially offset from the absorption transition peak wavelength. The pump wavelength is selected such that the absorption coefficient of pump light and the gain coefficient of the signal are substantially equal in the amplification waveguide such that the amplification gain is distributed substantially uniformly along the amplification waveguide.
摘要翻译：提供了用于放大脉冲光信号的抛物线脉冲放大器。该放大器包括使用具有基本上偏离吸收转变峰值波长的泵中心波长的泵浦泵浦泵浦的镱掺杂放大波导。选择泵浦波长，使得在放大波导中，泵浦光的吸收系数和信号的增益系数基本相等，使得放大增益沿着放大波导基本上均匀分布。

50. 发明申请

WO2009005738A1 LOW-REPETITION-RATE RING-CAVITY PASSIVELY MODE-LOCKED FIBER LASER 审中-公开
标题翻译：低重复频率环通常模式锁定光纤激光
公开(公告)号：WO2009005738A1
公开(公告)日：2009-01-08
申请号：PCT/US2008/008058
申请日：2008-06-27
申请人： CORNING INCORPORATED , LI, Shenping
发明人： LI, Shenping
IPC分类号： H01S3/067 , H01S3/11
CPC分类号： H01S3/06791 , H01S3/06725 , H01S3/0675 , H01S3/08 , H01S3/08009 , H01S3/094042 , H01S3/09415 , H01S3/1055 , H01S3/1118 , H01S3/1618
摘要： A ring-cavity, passively mode locked fiber laser capable of producing short-pulse-width optical pulses at a relatively low repetition rate. The fiber laser (10) uses a one-way ring-cavity geometry with a chirped fiber Bragg grating (CFBG) (100) at its reflecting member. The CFBG is part of a dispersion compensator that includes an optical circulator (60) that defines a one-way optical path through the ring cavity. A doped optical fiber section (20) is arranged in the optical path and serves as the gain medium. A pump light source (120) provides the pump light to excite the dopants and cause the gain medium to lase. A saturable absorber (40) is operable to effectuate passive mode-locking of the multiple modes supported by the ring cavity. The ring cavity geometry allows to achive mode locking with single pulse operation in a longer cavity length than conventional linear cavities. Furthermore, the longer cavity length reduces the constraints on the chirp rate of the CFBG. This, in turn, allows the CFBG to have a relatively high reflectivity, which provides the necessary dispersion compensation and cavity loss for generating short optical pulses at a low repetition rate.
摘要翻译：环形腔，被动锁模光纤激光器，能够以相对低的重复频率产生短脉冲宽度的光脉冲。光纤激光器（10）在其反射部件处使用具有啁啾光纤布拉格光栅（CFBG）（100）的单向环形腔几何形状。 CFBG是色散补偿器的一部分，其包括限定通过环形空腔的单向光学路径的光学循环器（60）。掺杂光纤部分（20）布置在光路中并用作增益介质。泵浦光源（120）提供泵浦光以激发掺杂剂并且使增益介质变薄。饱和吸收器（40）可操作以实现由环形空腔支撑的多个模式的被动模式锁定。环腔几何形状允许在比常规线性腔更长的腔体长度的单脉冲操作下进行模式锁定。此外，较长的腔体长度减少了对CFBG的啁啾率的限制。这反过来又允许CFBG具有相对高的反射率，这提供了必要的色散补偿和空腔损耗，用于以低重复率产生短光脉冲。

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