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公开(公告)号:US06327402B1
公开(公告)日:2001-12-04
申请号:US09244528
申请日:1999-02-04
申请人: William B. Joyce
发明人: William B. Joyce
IPC分类号: G02B626
CPC分类号: H01S3/094003 , H01S3/094096
摘要: The present invention is directed to a novel wavelength division multiplexed (WDM) lightwave communication system having allocated wide bands of wavelengths within which the respective optical pump light employed to amplify the optical signals must stay. As the temperature of the pump laser varies, its lasing wavelength is allowed to wander anywhere within its allocated wavelength band. Preferably, the pump lasers are wavelength stabilized within its respective allocated wavelength band by means of a fiber Bragg grating having an appropriately wide spectral width. Extending the lasing wavelength range of the pump laser advantageously, in turn, may be used to extend the temperature range over which the pump laser can be operated or locked.
摘要翻译: 本发明涉及一种分配宽带波长的新型波分复用(WDM)光波通信系统,其中用于放大光信号的相应光泵的光必须停留。 随着泵浦激光器的温度变化,其激光波长允许在其分配的波长带内的任何地方漂移。 优选地,泵浦激光器通过具有适当宽的光谱宽度的光纤布拉格光栅在其各自分配的波长带内波长稳定。 可以有利地延长泵浦激光器的激光波长范围,这又可以用于延长泵激光器可以在其上操作或锁定的温度范围。
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公开(公告)号:US5963695A
公开(公告)日:1999-10-05
申请号:US53264
申请日:1998-04-01
申请人: William B. Joyce
发明人: William B. Joyce
CPC分类号: G02B6/4236 , G02B6/4237
摘要: An optical module that compensates for a stress induced displacement is realized by employing asymmetric ferrule and clip assemblies. In one embodiment, the optical module includes a ferrule and clip assembly having posts or vertical members joined thereto with welds positioned along the longitudinal or center axes of the posts. Importantly, however, the effective axis of rotation about which one of the welds rotates under an applied axial displacement is offset along the longitudinal axis. This offset causes the welds to rotate asymmetrically with respect to the rotational axes which are orthogonal to the stress induced displacement, and is advantageously used to compensate for any stress induced displacement of the fiber that is quadratic in nature. In another embodiment, the optical module includes an asymmetric ferrule and clip assembly wherein at least one weld is offset along from the post's longitudinal or center axis, breaking the left-right symmetry of the assembly. Likewise, the welds rotate asymmetrically with respect to the axes orthogonal to the stress induced displacement. This latter rotation is used to compensate for any stress induced displacement, but one that is linear and not quadratic in nature.
摘要翻译: 通过采用不对称套圈和夹子组件来实现补偿应力诱导位移的光学模块。 在一个实施例中,光学模块包括套圈和夹子组件,其具有与其连接的柱或垂直构件,其中沿着柱的纵向或中心轴线定位焊缝。 然而,重要的是,一个焊缝在施加的轴向位移下旋转的有效轴线沿着纵向轴线偏移。 这种偏移导致焊缝相对于与应力引起的位移正交的旋转轴线不对称地旋转,并且有利地用于补偿本质上是二次的纤维的任何应力引起的位移。 在另一个实施例中,光学模块包括非对称套圈和夹子组件,其中至少一个焊缝沿着柱的纵向或中心轴线偏移,从而破坏组件的左右对称。 同样地,焊缝相对于与应力引起的位移正交的轴线不对称地旋转。 后者的旋转用于补偿任何应力引起的位移,但是本质上是线性的而不是二次的。
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3.
公开(公告)号:US4514896A
公开(公告)日:1985-05-07
申请号:US571386
申请日:1984-01-17
IPC分类号: H01L33/00 , H01L33/24 , H01S5/20 , H01S5/22 , H01L21/265
CPC分类号: H01L33/24 , H01L33/0025 , H01S5/20 , H01S5/2202 , H01S5/2059 , Y10S148/084 , Y10S438/942
摘要: Semiconductor light emitting devices, lasers and LEDs, are described in which the current flow channel is narrower near the top surface of the device and wider at its bottom near the active region. Also, described are several attenuation masks for fabricating the channels of these devices by particle bombardment.
摘要翻译: 描述了半导体发光器件,激光器和LED,其中电流流动通道在器件的顶表面附近更窄,并且在其底部靠近有源区域较宽。 此外,还描述了通过粒子轰击来制造这些器件的通道的几个衰减掩模。
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公开(公告)号:US06243528B1
公开(公告)日:2001-06-05
申请号:US09161081
申请日:1998-09-25
IPC分类号: G02B644
CPC分类号: G02B6/3616
摘要: A system is provided for mounting a fiber between locks by placing the locks at or near the natural inflection points of a sinusoidally curved fiber. This is accomplished by angularly offsetting the fiber exiting the locks at equal angles from an imaginary center line drawn between the locks, and by providing enough slack in the fiber between the locks to cause the inflection points to be positioned at or near the locks.
摘要翻译: 提供一种系统,用于通过将锁放置在正弦弯曲光纤的自然拐点处或附近来将光纤安装在锁之间。 这是通过以从相互锁定之间的假想中心线以相等角度离开锁定的角度偏移来实现的,并且通过在锁之间的纤维中提供足够的松弛使得拐点位于锁附近或附近。
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公开(公告)号:US06243404B1
公开(公告)日:2001-06-05
申请号:US09236720
申请日:1999-01-25
申请人: William B. Joyce
发明人: William B. Joyce
IPC分类号: H01S304
CPC分类号: H01S5/02216 , H01S5/02284 , H01S5/024 , H01S5/02453 , H01S5/0687
摘要: The present invention is directed to a method for adjusting the operating temperature range of a laser module such that it substantially covers or is coextensive with the span in temperatures for the desired application. In accordance with the principles of the invention, it has been found that the laser module's operating temperature range can be readily adjusted by judiciously increasing its thermal resistance so as to elevate, and thereby offset the laser's temperature from its ambient or surrounding temperature. As such, by judiciously impeding the laser module's heat flow, the laser module's operating locking temperature range can be made to be cover the span in temperatures for the desired application. Preferably, washers of a known thermal resistance are employed to increase the laser module's thermal resistance to accordingly impede heat flow from the laser to its surroundings, and thereby offset the laser's temperature.
摘要翻译: 本发明涉及一种用于调节激光模块的工作温度范围的方法,使得其在所期望的应用的温度下基本上覆盖或与跨度共同延伸。 根据本发明的原理,已经发现激光模块的工作温度范围可以容易地通过明智地增加其热阻来升高,从而使激光器的温度与其环境温度或周围温度相抵消。 因此,通过明智地阻止激光模块的热流,激光模块的操作锁定温度范围可以覆盖所期望应用的温度范围。 优选地,使用已知热阻的垫圈来增加激光模块的热阻,从而相应地阻止从激光到其周围的热流,从而抵消激光器的温度。
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公开(公告)号:US5854869A
公开(公告)日:1998-12-29
申请号:US887916
申请日:1997-07-03
申请人: William B. Joyce
发明人: William B. Joyce
IPC分类号: G02B6/42
CPC分类号: G02B6/4237 , G02B6/424 , G02B6/4257 , G02B6/4267 , G02B6/4225 , G02B6/4251 , G02B6/4285
摘要: A module which holds an optical fiber and a laser in alignment to couple light energy emitted from the laser to an end of the fiber. The fiber is held within a metal ferrule. The fiber and the laser are aligned by means of a metal platform to which both the ferrule and the laser are secured. Only the ferrule is secured to the outer box of the module, so that the platform, along with the alignment of the fiber and the laser, are isolated from mechanical stresses induced in the box.
摘要翻译: 保持光纤和激光器对齐以将从激光发射的光能耦合到光纤的端部的模块。 纤维保持在金属套圈内。 纤维和激光通过金属平台对齐,金属平台与套圈和激光器都固定在该金属平台上。 只有套圈固定在模块的外箱上,使得平台与纤维和激光器的对准与箱体中引起的机械应力隔离。
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公开(公告)号:US07277467B2
公开(公告)日:2007-10-02
申请号:US09998962
申请日:2001-10-31
申请人: William B. Joyce
发明人: William B. Joyce
IPC分类号: H01S3/08
CPC分类号: G02B6/4248 , G02B6/424 , G02B6/4251 , H01S5/02208 , H01S5/02252 , H01S5/02284
摘要: Disclosed is a laser module case having a snout disposed within a wall of the case, wherein the snout may allow alignment of a laser with an optical fiber after closure of the case. The snout has an inner end, outer end and longitudinal hollow. An optical fiber assembly, also with an inner end, outer end and longitudinal hollow, is disposed within the snout hollow. An inner flange secures the snout to the optical fiber assembly at their inner ends and an outer flange secures the snout to the optical fiber assembly at their outer ends. The optical fiber assembly is of a smaller cross-sectional diameter than the snout hollow so that it may move in an X and Y-direction. The optical fiber assembly may be aligned with a laser positioned within the case after the case is closed. The aligned fiber assembly may then be secured in position by the outer flange.
摘要翻译: 公开了一种具有设置在壳体的壁内的喷嘴的激光模块壳体,其中,所述喷嘴可以在所述壳体关闭之后允许激光与光纤对准。 鼻孔具有内端,外端和纵向中空。 还具有内端,外端和纵向中空的光纤组件设置在鼻孔中空部内。 内部凸缘在其内端将鼻部固定到光纤组件,并且外部凸缘在其外端将鼻部固定到光纤组件。 光纤组件的截面直径比鼻孔中空的截面直径小,因此它可以在X和Y方向上移动。 在壳体关闭之后,光纤组件可以与位于壳体内的激光器对准。 然后可以通过外凸缘将对准的纤维组件固定在适当的位置。
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8.
公开(公告)号:US06278721B1
公开(公告)日:2001-08-21
申请号:US09261530
申请日:1999-03-03
申请人: William B. Joyce
发明人: William B. Joyce
IPC分类号: H01S308
CPC分类号: H01S5/146
摘要: The present invention discloses a method for eliminating, or at least minimizing, the locking range variability of laser modules which employ external grating, such as fiber bragg gratings. It has been observed that the coupling efficiency between the laser and its output fiber is a highly variable property of the laser module, causing variations in the laser module's locking range. The laser module's locking range, however, can be readily reset to or near its nominal value by measuring the laser module's coupling efficiency, and then judiciously choosing a grating having a peak reflectivity which compensates for variations in the coupling efficiency by maintaining constant the effective reflectivity Reff of the fiber/grating combination.
摘要翻译: 本发明公开了一种用于消除或至少最小化采用外部光栅(例如光纤布拉格光栅)的激光模块的锁定范围变化性的方法。 已经观察到,激光器和其输出光纤之间的耦合效率是激光器模块的高度可变的特性,导致激光器模块锁定范围的变化。 然而,激光模块的锁定范围可以通过测量激光模块的耦合效率而容易地重新设置到其标称值或接近其标称值,然后明智地选择具有峰值反射率的光栅,通过保持有效反射率的常数来补偿耦合效率的变化 光纤/光栅组合的Reff。
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公开(公告)号:US5793915A
公开(公告)日:1998-08-11
申请号:US887544
申请日:1997-07-03
申请人: William B. Joyce
发明人: William B. Joyce
CPC分类号: G02B6/4237 , G02B6/424 , G02B6/4245 , G02B6/4266 , G02B6/4226 , G02B6/4248 , G02B6/4251 , G02B6/4285
摘要: A module which holds an optical fiber and a laser in alignment to couple light energy emitted from the laser to an end of the fiber. The fiber is held within a metal ferrule. The fiber and the laser are aligned by means of a metal platform to which both the ferrule and the laser are secured. The ferrule is secured to the platform by means of thin flexible washers which compensate for thermal expansion mismatch along the axis of the fiber. In addition, by using dissimilar metals to form the platform, transverse thermal expansion matching is attained.
摘要翻译: 保持光纤和激光器对齐以将从激光发射的光能耦合到光纤的端部的模块。 纤维保持在金属套圈内。 纤维和激光通过金属平台对齐,金属平台与套圈和激光器都固定在该金属平台上。 套圈通过薄柔性垫圈固定到平台上,该柔性垫圈补偿沿着纤维轴线的热膨胀失配。 另外,通过使用异种金属来形成平台,可实现横向热膨胀匹配。
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