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公开(公告)号：US5237637A
公开(公告)日：1993-08-17
申请号：US905924
申请日：1992-06-29
CPC分类号： G02F1/383 , G02F1/3555
摘要： Applicants have discovered that the conversion efficiency of doped glass optical second harmonic generators can be enhanced when the frequency .omega. of the fundamental beam or the frequency 2.omega. of the harmonic beam is chosen near the resonance frequency of an optical transition in the dopant. This resonant enhancement is demonstrated for Tm doped aluminosilicate glass fibers where tuning of the fundamental writing beam to a resonance frequency enhances the second harmonic output by a factor of 10.sup.3.
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公开(公告)号：US5187759A
公开(公告)日：1993-02-16
申请号：US788952
申请日：1991-11-07
申请人： David J. DiGiovanni , Clinton R. Giles , Stuart A. Kramer , Gerald Nykolak , Herman M. Presby , Jay R. Simpson
发明人： David J. DiGiovanni , Clinton R. Giles , Stuart A. Kramer , Gerald Nykolak , Herman M. Presby , Jay R. Simpson
CPC分类号： H01S3/094003 , H01S3/08022 , H01S3/094069
摘要： Indiscriminately exciting the modes of a multi-mode optical fiber amplifier is avoided by an optical fiber amplifier design in which the excitation of pump modes in the core of a multi-mode fiber is controlled by controlling the pump light launching. The pump light is directed substantially along the center axis of a multi-mode fiber within a predetermined launch angle. Rather than exciting all modes, only lower order modes are affected.
摘要翻译： 通过光纤放大器设计避免了多模光纤放大器的模式的不加选择地激发，其中通过控制泵浦光发射来控制多模光纤的核心中的泵浦模式的激发。 泵浦光在预定的发射角度内基本上沿着多模光纤的中心轴线引导。 而不是激发所有模式，只有较低阶模式受到影响。
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公开(公告)号：US08351111B2
公开(公告)日：2013-01-08
申请号：US12778012
申请日：2010-05-11
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 light 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，并且当第一波长的光在第一波长的第一斯托克斯位移时提供拉曼增益 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。
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公开(公告)号：US07272288B2
公开(公告)日：2007-09-18
申请号：US11606718
申请日：2006-11-30
CPC分类号： G02B6/02019 , G02B6/02023 , G02B6/02047 , G02B6/03611 , G02B6/0365 , G02B6/03666 , G02B6/14 , H01S3/06708 , H01S3/06729 , H01S3/0675 , H01S3/06754 , H01S3/08022 , H01S3/094007
摘要： The specification describes an optical fiber device wherein a LOM is converted to an HOM prior to entering the gain section. The gain section is a few mode fiber that supports the HOM. The output from the gain section, i.e. the HOM, may be utilized as is, or converted back to the LOM. With suitable design of the few mode fiber in the gain section of the device, the effective area, Aeff, may be greater than 1600 μm2. The large mode separation in the gain section reduces mode coupling, allowing greater design freedom and reducing the bend sensitivity of the optical fiber.
摘要翻译： 本说明书描述了一种光纤设备，其中在进入增益部分之前将LOM转换为HOM。 增益部分是支持HOM的几种模式光纤。 来自增益部分（即HOM）的输出可以原样使用，或转换回LOM。 通过设备的增益部分中的几种模式光纤的合适设计，有效面积Aeff可以大于1600mum <2>。 增益部分的大模式分离减少了模式耦合，允许更大的设计自由度和降低光纤的弯曲灵敏度。
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公开(公告)号：US07171074B2
公开(公告)日：2007-01-30
申请号：US10990088
申请日：2004-11-16
CPC分类号： G02B6/02019 , G02B6/02023 , G02B6/02047 , G02B6/03611 , G02B6/0365 , G02B6/03666 , G02B6/14 , H01S3/06708 , H01S3/06729 , H01S3/0675 , H01S3/06754 , H01S3/08022 , H01S3/094007
摘要： The specification describes an optical fiber device wherein a LOM is converted to an HOM prior to entering the gain section. The gain section is a few mode fiber that supports the HOM. The output from the gain section, i.e. the HOM, may be utilized as is, or converted back to the LOM. With suitable design of the few mode fiber in the gain section of the device, the effective area, Aeff, may be greater than 1600 μm2. The large mode separation in the gain section reduces mode coupling, allowing greater design freedom and reducing the bend sensitivity of the optical fiber.
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26.发明授权
公开(公告)号：US5596668A
公开(公告)日：1997-01-21
申请号：US497346
申请日：1995-06-30
IPC分类号： C03B37/012 , C03B37/018 , C03B37/03 , C03C13/04 , G02B6/036 , G02B6/44 , G02B6/16
CPC分类号： G02B6/03694 , C03B37/01205 , C03B37/01892 , C03C13/045 , G02B6/03622 , G02B6/03638 , G02B6/03661 , G02B6/4492 , C03B2201/28 , C03B2201/31 , C03B2203/24 , Y02P40/57
摘要： We have discovered that hydrogen-related loss in silica-based single mode transmission optical fiber can be reduced or eliminated by use of a substrate tube that contains hydrogen getter sites. Exemplarily, substrate tubes according to the invention are doped with Ge or P.
摘要翻译： 我们已经发现，通过使用含有吸气剂位置的衬底管，可以减少或消除二氧化硅基单模透射光纤中的氢相关损失。 示例性地，根据本发明的基底管掺杂有Ge或P.
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27.发明授权System for spectrum-sliced fiber amplifier light for multi-channel wavelength-division-multiplexed applications 失效用于多通道波分复用应用的频谱切片光纤放大器光系统
公开(公告)号：US5440417A
公开(公告)日：1995-08-08
申请号：US130962
申请日：1993-10-04
申请人： Yun C. Chung , Jae S. Lee , David J. DiGiovanni
发明人： Yun C. Chung , Jae S. Lee , David J. DiGiovanni
IPC分类号： H01S3/07 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/17 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/155 , H04B10/17 , H04B10/26 , H04B10/28 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0221 , H01S3/06795 , H04B10/291 , H04B10/2912 , H04B10/506 , H04B10/572 , H04B2210/258
摘要： The present invention relates to a potentially inexpensive light for multi-channel wavelength-division-multiplexed (WDM) applications. The high-power amplified spontaneous emission (ASE) from a fiber amplifier, which is already in the optical fiber, is efficiently divided into many channels using a WDM demultiplexer. This "spectrum-sliced" ASE is used as light sources for WDM systems rather than several wavelength-selected DFB lasers.
摘要翻译： 本发明涉及用于多通道波分复用（WDM）应用的潜在廉价的光。 已经在光纤中的光纤放大器的高功率放大自发发射（ASE）利用WDM解复用器被有效地分成许多信道。 这种“频谱分片”ASE被用作WDM系统的光源，而不是几个波长选择的DFB激光器。
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公开(公告)号：US5378664A
公开(公告)日：1995-01-03
申请号：US82007
申请日：1993-06-24
IPC分类号： G02B6/00 , C03C3/32 , C03C13/04 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/10 , H01S3/16 , H01S3/17
CPC分类号： H01S3/06708 , C03C3/321 , H01S3/1613
摘要： A chalcogenide glass that is doped with praseodymium and contains a rare earth metal is disclosed. The rare earth metal is at least 10 mole percent of the metals in the glass. The concentration of the praseodymium in the glass is at least 200 ppm. The chalcogenide glass, when formed into an amplifier for an optical fiber transmission system, efficiently amplifies optical signals in the signal band of 1.3 .mu.m.
摘要翻译： 公开了掺杂有镨并含有稀土金属的硫族化物玻璃。 稀土金属至少为玻璃中金属的10摩尔％。 玻璃中镨的浓度至少为200ppm。 硫族化物玻璃当形成用于光纤传输系统的放大器时，有效地放大了1.3μm信号频带的光信号。
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公开(公告)号：US5181210A
公开(公告)日：1993-01-19
申请号：US820110
申请日：1992-01-13
CPC分类号： H01S3/06791 , H01S3/1062
摘要： A compact all-fiber, electrically tunable ring laser includes a diode-pumped erbium-doped fiber amplifier. The frequency of the laser is tuned by a fiber Fabry-Perot (FFP) etalon that is electrically tuned. An in-line optical isolator is used in conjunction with the FFP to eliminate undesired reflections. A second FPP with a narrow free spectral range (FSR) can be used in conjunction with a first FFP with a wide FSR.
摘要翻译： 紧凑型全光纤，电可调环形激光器包括二极管泵浦掺铒光纤放大器。 激光器的频率由电气调谐的光纤法布里 - 珀罗（FFP）标准器调谐。 在线光隔离器与FFP结合使用以消除不必要的反射。 具有窄自由光谱范围（FSR）的第二个FPP可与具有宽FSR的第一个FFP结合使用。
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公开(公告)号：US5123940A
公开(公告)日：1992-06-23
申请号：US684624
申请日：1991-04-12
IPC分类号： C03B37/014 , C03B37/016 , C03B37/018 , C03C1/00 , C03C13/04 , G02B6/00
CPC分类号： C03B37/01838 , C03C1/008 , C03B2201/06 , C03B2201/34 , C03B2201/36 , C03B2201/42 , Y02P40/57 , Y10S65/901
摘要： The method includes collapsing a silica-based glass tube to make a preform and drawing fiber from the preform. Prior to collapsing the tube, one or more glass layers are formed on the inner surface of the tube by dip-coating the surface with a sol comprising a metal alkoxide dissolved in an alcoholic or aqueous solvent, polymerizing the sol to form a gel, and drying and sintering the gel. A substantial portion the dopant, present within the sintered gel, diffuses into at least one adjoining glass region. A wide selection of dopant materials, in the form of salts or alkoxides, are readily incorporated by dissolving them in the solvent.
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