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1. 发明授权

US5770473A Packaging of high power semiconductor lasers 失效
公开(公告)号：US5770473A
公开(公告)日：1998-06-23
申请号：US833548
申请日：1997-04-07
申请人： Douglas W. Hall , Paul A. Jakobson , Julia Alyson Sharps , Roger F. Bartholomew
发明人： Douglas W. Hall , Paul A. Jakobson , Julia Alyson Sharps , Roger F. Bartholomew
IPC分类号： H01L33/48 , H01S5/00 , H01S5/022 , H01L21/00
CPC分类号： H01L33/483 , H01S5/0021 , H01S5/0287 , H01L2924/0002 , H01S5/02204 , H01S5/02224
摘要： A package for a high power semiconductor laser comprising a hermetically sealed container filled with a dry gaseous medium containing oxygen. The presence of oxygen in the laser atmosphere is counter to standard practice in the art which teaches the use of an atmosphere of a dry inert gas. The package also includes a getter for organic impurities, e.g., a getter composed of a porous silica or a zeolite. The hydrogen content of the materials used to form the package are reduced by baking at an elevated temperature for an extended period of time, e.g., at 150.degree. C. for 200 hours.

2. 发明授权

US5629952A Packaging of high power semiconductor lasers 失效
标题翻译：大功率半导体激光器的封装
公开(公告)号：US5629952A
公开(公告)日：1997-05-13
申请号：US481008
申请日：1995-06-07
申请人： Roger F. Bartholomew , Paul A. Jakobson , Douglas W. Hall , Julia A. Sharps
发明人： Roger F. Bartholomew , Paul A. Jakobson , Douglas W. Hall , Julia A. Sharps
IPC分类号： H01L33/48 , H01S5/00 , H01S5/022 , H01S3/00 , H01L23/36
CPC分类号： H01L33/483 , H01S5/0021 , H01S5/0287 , H01L2924/0002 , H01S5/02204 , H01S5/02224
摘要： A package for a high power semiconductor laser comprising a hermetically sealed container filled with a dry gaseous medium containing oxygen. The presence of oxygen in the laser atmosphere is counter to standard practice in the art which teaches the use of an atmosphere of a dry inert gas. The package also includes a getter for organic impurities, e.g., a getter composed of a porous silica or a zeolite. The hydrogen content of the materials used to form the package are reduced by baking at an elevated temperature for an extended period of time, e.g., at 150.degree. C. for 200 hours.
摘要翻译：一种用于大功率半导体激光器的封装，包括填充有含氧的干燥气态介质的密封容器。在激光气氛中存在氧与本领域的标准做法相反，该方法教导了使用干燥惰性气体的气氛。该包装还包括有机杂质的吸气剂，例如由多孔二氧化硅或沸石组成的吸气剂。用于形成包装的材料的氢含量通过在升高的温度下长时间烘烤（例如在150℃下）减少200小时。

3. 发明授权

US5128801A Integrated optical signal amplifier 失效
标题翻译：集成光信号放大器
公开(公告)号：US5128801A
公开(公告)日：1992-07-07
申请号：US647778
申请日：1991-01-30
申请人： Richard Jansen , Pascale LaBorde , Christian Lerminiaux , Carlos O. N. Benveniste , Douglas W. Hall
发明人： Richard Jansen , Pascale LaBorde , Christian Lerminiaux , Carlos O. N. Benveniste , Douglas W. Hall
IPC分类号： H01S3/063
CPC分类号： H01S3/063
摘要： An optical signal amplifier with a waveguide path integrated into a glass body that is doped with optically active material. The signal to be amplified is transmitted through the waveguide and the pump power is coupled into the waveguide at one end. The waveguide comprises closely spaced adjacent guide lengths in the form of a spiral, zigzag paths between mirrors, or parallel paths with connecting semicircles at alternating ends of succeeding pairs of paths.
摘要翻译：一种光信号放大器，其具有集成到玻璃体中的波导路径，其掺杂有光学活性材料。待放大的信号通过波导传输，泵浦功率在一端耦合到波导中。波导包括呈反射镜之间的螺旋状锯齿状路径形式的紧密间隔的相邻引导长度，或者在后续路径对的交替端连接半圆的平行路径。

4. 发明授权

US06307669B1 L-band amplification with detuned 980nm pump 有权
标题翻译： L波段放大与失谐的980nm泵
公开(公告)号：US06307669B1
公开(公告)日：2001-10-23
申请号：US09417262
申请日：1999-10-12
申请人： Felton A. Flood , Douglas W. Hall
发明人： Felton A. Flood , Douglas W. Hall
IPC分类号： H01S300
CPC分类号： H01S3/067 , H01S3/094003 , H01S3/1603 , H01S3/1608 , H01S2302/00 , H01S2303/00
摘要： A method of operating an optical amplifier for improved gain and pump-to-signal conversion efficiency in a long wavelength spectral region (L-band) of the emission spectrum of a rare earth doped gain medium having a known pump absorption band involves the steps of providing an optical signal to the amplifier having a large-signal input power; and providing pumping light to the amplifier having a wavelength that is different from a center wavelength of the known pump absorption band for amplifying the optical signal. Signal gain and improved pump-to-signal conversion efficiency was demonstrated for an erbium L-band signal by detuning the pump between about ±0-30 nm on either side of the pump band center wavelength of 979-980 nm. An optical amplifier employing the described method is also disclosed.
摘要翻译：在具有已知的泵吸收带的稀土掺杂增益介质的发射光谱的长波长光谱区域（L波段）中操作光放大器以改善增益和泵浦到信号转换效率的方法包括以下步骤：向具有大信号输入功率的放大器提供光信号; 以及向具有不同于已知泵吸收带的中心波长的波长的放大器提供泵浦光，用于放大光信号。通过在泵带中心波长979-980 nm的任一侧使约在±0-30nm之间的泵失谐，从而为铒L波段信号证明了信号增益和提高的泵浦到信号转换效率。还公开了采用所述方法的光放大器。

5. 再颁专利

USRE41438E1 Fiber amplifier with one single mode core having modified gain spectrum 失效
标题翻译：具有一个单模核心的光纤放大器具有修改的增益谱
公开(公告)号：USRE41438E1
公开(公告)日：2010-07-13
申请号：US09105572
申请日：1998-06-26
申请人： Douglas W. Hall , Mark A. Newhouse
发明人： Douglas W. Hall , Mark A. Newhouse
IPC分类号： G02B6/00 , G02B6/22
CPC分类号： H01S3/10023 , H01S3/06766 , H01S3/06787 , H01S3/1608 , H01S2301/04
摘要： Disclosed is a fiber amplifier system including a gain fiber having a single-mode core containing dopant ions capable of producing stimulated emission of light at wavelength λs when pumped with light of wavelength λp. Absorbing ion filtering means is operatively associated with the gain fiber to alter the gain curve. If the absorbing ions are the same as the gain ions of the gain fiber, the system further includes means for preventing pump light from exciting the gain ions of the filtering means. The excitation prevention means may take the form of means for attenuating pump light. If the absorbing ions are different from the dopant ions of the gain fiber, such absorbing ions can be subjected to light at wavelength αp, but they will remain unexcited. Such absorbing ions can be used to co-dope the gain fiber, or they can be incorporated into the core of a fiber that is in series with the gain fiber.
摘要翻译：公开了一种光纤放大器系统，其包括具有单模核心的增益光纤，所述单模核心包含掺杂离子，当用波长λp的光泵浦时，能够产生波长λs的受激发射的光。吸收离子过滤装置可操作地与增益光纤相关联以改变增益曲线。如果吸收离子与增益光纤的增益离子相同，则系统还包括用于防止泵浦光激发过滤装置的增益离子的装置。励磁防止装置可以采取用于衰减泵浦光的装置的形式。如果吸收离子与增益纤维的掺杂剂离子不同，这样的吸收离子可以经受波长αp的光，但是它们将保持不变。这种吸收离子可以用于共增益纤维，或者它们可以并入到与增益纤维串联的纤维的芯中。

6. 发明授权

US5040862A Method of trimming optical power 失效
标题翻译：修剪光功率的方法
公开(公告)号：US5040862A
公开(公告)日：1991-08-20
申请号：US519907
申请日：1990-05-07
申请人： Clement D. Burton , Jeffery A. DeMeritt , Douglas W. Hall
发明人： Clement D. Burton , Jeffery A. DeMeritt , Douglas W. Hall
IPC分类号： G02B6/42 , H01L33/00 , H01S5/00
CPC分类号： G02B6/4204 , G02B6/4208 , G02B6/4216 , G02B6/4226 , G02B6/4225
摘要： The amount of light coupled to an optical fiber from a laser diode is limited to a predetermined maximum power. A lens receiving the laser output is adjusted to maximize the power received at the core portion of the fiber endface. The power coupled to the fiber is then reduced to the predetermined power level by insertion of a polarizing or absorbing filter in the optical path. When a polarizing filter is employed, it is rotated until the predetermined power is coupled to the fiber. If a quarter wave plate is included, negative effects due to back reflections from the fiber end face into the laser diode can be eliminated.

7. 发明授权

US06339495B1 Optical amplifier with power dependent feedback 失效
标题翻译：具有功率反馈的光放大器
公开(公告)号：US06339495B1
公开(公告)日：2002-01-15
申请号：US09451314
申请日：1999-11-30
申请人： Gregory J. Cowle , Douglas W. Hall , Thomas W. McNamara , Chiachi Wang
发明人： Gregory J. Cowle , Douglas W. Hall , Thomas W. McNamara , Chiachi Wang
IPC分类号： H04B1017
CPC分类号： H04J14/0221 , H04B10/296 , H04J14/0212
摘要： An optical amplifier includes an optical feedback resonant laser cavity (OFRC) including a power dependent loss element (PDLE) having the characteristic that as the incident laser power on the PDLE increases the cavity loss decreases. The OFRC with the PDLE provides optical gain control or optical power control for a WDM amplifier or a single channel power equalization amplifier (PEA), respectively. A 1×N×N WADM node incorporating more than one of these amplifiers, at least some of which commonly share a pump source, and a method for controlling a transient power change in a single channel optical amplifier or reducing a DC gain error in a WDM optical amplifier that are subject to dynamically variable operating conditions at an input of the amplifier, are also disclosed.
摘要翻译：光放大器包括光反馈谐振激光腔（OFRC），其包括功率依赖损耗元件（PDLE），其特征在于，随着PDLE上的入射激光功率增加，空腔损耗减小。 OFRC与PDLE分别为WDM放大器或单通道功率均衡放大器（PEA）分别提供光增益控制或光功率控制。包括这些放大器中的多于一个的1xNxN WADM节点，其至少一些通常共享泵浦源，以及用于控制单通道光放大器中的瞬态功率变化或减少WDM光放大器中的DC增益误差的方法，在放大器的输入处经受动态可变的工作条件。

8. 发明授权

US5301054A Transmission of AM-VSB video signals over an optical fiber 失效
标题翻译：通过光纤传输AM-VSB视频信号
公开(公告)号：US5301054A
公开(公告)日：1994-04-05
申请号：US4553
申请日：1993-01-14
申请人： David R. Huber , Douglas W. Hall , Edward F. Murphy
发明人： David R. Huber , Douglas W. Hall , Edward F. Murphy
IPC分类号： H04B10/17 , H04B10/207 , H04J14/02 , H01S3/00
CPC分类号： H04B10/27 , H04B10/272 , H04B10/291 , H04B10/2912
摘要： The use of a doped optical fiber amplifier enables the transmission of multi-channel AM-VSB television signals. An Erbium doped fiber amplifier is disclosed. The amplifier is also useful for reducing second order distortion products produced in an amplitude modulated subcarrier optical communication system. The amplifier may be used in a tree and branch structure optical fiber television network.
摘要翻译：使用掺杂的光纤放大器能够传输多通道AM-VSB电视信号。公开了掺铒光纤放大器。放大器还可用于减小在幅度调制副载波光通信系统中产生的二阶失真产物。该放大器可用于树和分支结构的光纤电视网络。

9. 发明授权

US5210631A Transmission of AM-VSB video signals over an optical fiber 失效
标题翻译：通过光纤传输AM-VSB视频信号
公开(公告)号：US5210631A
公开(公告)日：1993-05-11
申请号：US454772
申请日：1989-12-22
申请人： David R. Huber , Douglas W. Hall , Edward F. Murphy
发明人： David R. Huber , Douglas W. Hall , Edward F. Murphy
IPC分类号： H04B10/17 , H04B10/207
CPC分类号： H04B10/27 , H04B10/272 , H04B10/291 , H04B10/2912
摘要： The use of a doped optical fiber amplifier enables the transmission of multi-channel AM-VSB television signals. An Erbium doped fiber amplifier is disclosed. The amplifier is also useful for reducing second order distortion products produced in an amplitude modulated subcarrier optical communication system. The amplifier may be used in a tree and branch structure optical fiber television network.
摘要翻译：使用掺杂的光纤放大器能够传输多通道AM-VSB电视信号。公开了掺铒光纤放大器。放大器还可用于减小在幅度调制副载波光通信系统中产生的二阶失真产物。该放大器可用于树和分支结构的光纤电视网络。

10. 发明授权

US5093288A Thallium germanate, tellurite, and antimonite glasses 失效
标题翻译：锗酸铊，碲酸盐和锑酸盐玻璃
公开(公告)号：US5093288A
公开(公告)日：1992-03-03
申请号：US618939
申请日：1990-11-28
申请人： Bruce G. Aitken , Douglas W. Hall , Mark A. Newhouse
发明人： Bruce G. Aitken , Douglas W. Hall , Mark A. Newhouse
IPC分类号： C03C3/062 , C03C3/07 , C03C3/12 , C03C3/253 , C03C4/00 , C03C13/04 , G02F1/35 , G02F1/355 , H01S3/17
CPC分类号： G02F1/3555 , C03C13/046 , C03C13/048 , C03C3/062 , C03C3/07 , C03C3/122 , C03C3/253
摘要： This invention relates to thallium germanate, tellurite, and antimonite glasses possessing high optical nonlinearity, as well as good visible and infrared transmission, making them suitable materials for the fabrication of active optical devices.

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