Compact optical amplifier with integrated optical waveguide and pump source

    公开(公告)号:US06384961B1

    公开(公告)日:2002-05-07

    申请号:US09768828

    申请日:2001-01-23

    申请人: Brian L. Lawrence

    发明人: Brian L. Lawrence

    IPC分类号: H01S300

    摘要: An optical amplifier with integrated optical waveguide, pump source and other, optional components for amplifying an input optical signal coupled from a fiber optic. The amplifier includes a housing having these components mounted therein, and appropriate optics for coupling the input and output optical signals to and from the appropriate ports, and for carrying an optical pump signal from its source to the waveguide. The optical waveguide disclosed is a channel waveguide amplification chip, having a relatively small size; and the pump source disclosed is a laser diode capable of generating the optical pump signal internal to the housing with only electrical (e.g., power) signals applied thereto from outside of the housing. Other optional components may be provided for cooperative optical processing in the amplifier housing. The disclosed optical amplifier offers size and cost advantages over other known systems.

    Optical waveguide with dissimilar core and cladding materials, and light
emitting device employing the same
    3.
    发明授权
    Optical waveguide with dissimilar core and cladding materials, and light emitting device employing the same 失效
    具有不同的芯和包层材料的光波导和使用其的发光器件

    公开(公告)号:US6141475A

    公开(公告)日:2000-10-31

    申请号:US121454

    申请日:1998-07-23

    CPC分类号: H01S3/063

    摘要: An optical waveguide, radiation emitting device employing the same, and process for fabricating the radiation emitting device are provided. The optical waveguide has a core fabricated of a first material with a first index of refraction and cladding surrounding the core fabricated of a second material with a second index of refraction. The core is an active material which emits radiation at a desired wavelength when pumped with radiation of a predetermined wavelength, and the first material and second material are dissimilar materials, having been separately fabricated and subsequently physically assembled as the waveguide. The light emitting device employing the optical waveguide is configured either as an amplified spontaneous emission (ASE) source or laser source employing appropriate reflective materials at the ends of the optical waveguide.

    摘要翻译: 提供了一种光波导,使用其的辐射发射装置,以及用于制造辐射发射装置的方法。 光波导具有由第一材料制成的芯,该第一材料具有第一折射率和围绕由具有第二折射率的第二材料制成的芯的包层。 芯是当以预定波长的辐射泵送时发射所需波长的辐射的活性材料,并且第一材料和第二材料是不同的材料,已被单独制造并随后物理组装为波导。 使用光波导的发光器件可以被配置为在光波导的端部使用适当的反射材料的放大自发发射(ASE)源或激光源。

    Optical amplifier and process for amplifying an optical signal
propagating in a fiber optic employing an overlay waveguide and
stimulated emission
    4.
    发明授权
    Optical amplifier and process for amplifying an optical signal propagating in a fiber optic employing an overlay waveguide and stimulated emission 失效
    光放大器和用于放大在使用覆盖波导和受激发射的光纤中传播的光信号的过程

    公开(公告)号:US6052220A

    公开(公告)日:2000-04-18

    申请号:US928578

    申请日:1997-09-12

    摘要: A side-polished fiber/overlay waveguide architecture and process for non-invasively implementing an optical amplifier are provided for an optical communications system. A "channel" overlay waveguide is employed to constrain for amplification optical energy evanescently coupled to the overlay waveguide from the side-polished optical fiber. One of two amplification methods can be employed. The first involves inducing stimulated emission with the overlay waveguide and the second uses a second order, non-linear frequency conversion to down-convert a high-power, short-wavelength pump signal into the waveguide to amplify the optical energy coupled thereto. Amplification of optical energy in the channel overlay waveguide can be established within a single beat length of evanescent removal to evanescent return of the optical energy to the side-polished fiber optic.

    摘要翻译: 为光通信系统提供了用于非侵入式实现光放大器的侧面抛光光纤/覆盖波导架构和处理。 采用“通道”覆盖波导限制用于从侧面抛光光纤瞬时耦合到覆盖波导的放大光能量。 可以采用两种扩增方法之一。 第一个涉及用覆盖波导诱导受激发射,而第二次采用二阶非线性频率转换来将大功率短波长泵浦信号下变频到波导中以放大与其耦合的光能。 在通道覆盖波导中的光能的放大可以在消逝消逝的单节拍长度内建立,以消除光能到侧面抛光光纤的消逝。

    Organic photochromic compositions and method for fabrication of polymer waveguides
    5.
    发明授权
    Organic photochromic compositions and method for fabrication of polymer waveguides 失效
    有机光致变色组合物和聚合物波导的制造方法

    公开(公告)号:US06194120B1

    公开(公告)日:2001-02-27

    申请号:US09565770

    申请日:2000-05-05

    IPC分类号: G03C1675

    摘要: Optical waveguides prepared by irradiating selected regions of positive photochromic polymeric materials with actinic radiation are disclosed. The photochromic materials undergo an irreversible photochemical change which results in an increase in the refractive index of light-exposed regions. In addition, the materials exhibit negligible second-order polarizability prior to exposure and excellent nonlinear optical properties after exposure and polarization. Thus, the exposed regions are particularly useful as the core in active waveguides for use in second-order nonlinear optical applications, as well as the core in passive waveguides. In addition, a simple two step process is disclosed for forming optical waveguides from the positive photochromic polymers. Optical structures, such as optical integrated circuits, and optical devices which incorporate the waveguides are also disclosed. The optical devices may be used as optical modulators, filters, attenuators, amplifiers, frequency converters, and electric field sensors, as well as in other nonlinear optical applications.

    摘要翻译: 公开了通过用光化辐射照射正光致变色聚合材料的选定区域制备的光波导。 光致变色材料经历不可逆的光化学变化,导致曝光区域的折射率增加。 此外,材料在曝光之前显示出可忽略的二阶极化率,并且在曝光和极化后具有极好的非线性光学特性。 因此,暴露区域特别适用于用于二阶非线性光学应用的有源波导中的核心以及无源波导中的核心。 另外,公开了从正型光致变色聚合物形成光波导的简单的两步法。 还公开了诸如光学集成电路的光学结构和结合波导的光学装置。 光学器件可以用作光学调制器,滤波器,衰减器,放大器,变频器和电场传感器,以及其它非线性光学应用。

    Optical amplifier and process for amplifying an optical signal
propagating in a fiber optic
    6.
    发明授权
    Optical amplifier and process for amplifying an optical signal propagating in a fiber optic 失效
    用于放大在光纤中传播的光信号的光放大器和处理

    公开(公告)号:US5815309A

    公开(公告)日:1998-09-29

    申请号:US786047

    申请日:1997-01-21

    摘要: A side-polished fiber/overlay waveguide architecture and process for non-invasively implementing an optical amplifier are provided for an optical communications system. A "channel" overlay waveguide is employed to constrain for amplification optical energy evanescently coupled to the overlay waveguide from the side-polished optical fiber. The overlay waveguide exhibits a non-linear response of second order, and non-linear frequency conversion is employed to down-convert a high-power, short-wavelength pump signal into the waveguide to amplify the optical energy coupled thereto. The channel overlay waveguide is dimensioned to allow for phase matching between highest order modes of the optical signal within the side-polished fiber optic and the pump signal provided to the channel overlay waveguide. A low-index matching layer is disposed between the channel overlay waveguide and the side-polished fiber optic to facilitate phase matching of the propagation modes. Amplification of optical energy in the channel overlay waveguide is established within a single beat length of evanescent removal to evanescent return of the optical energy to the side-polished fiber optic.

    摘要翻译: 为光通信系统提供了用于非侵入式实现光放大器的侧面抛光光纤/覆盖波导架构和处理。 采用“通道”覆盖波导限制用于从侧面抛光光纤瞬时耦合到覆盖波导的放大光能量。 覆盖波导表现出二阶非线性响应,采用非线性频率转换将大功率短波长泵浦信号下变频到波导中,以放大与其耦合的光能。 通道覆盖波导的尺寸被设计为允许侧面抛光光纤内的光信号的最高阶模与提供给沟道覆盖波导的泵浦信号之间的相位匹配。 低折射率匹配层设置在通道覆盖波导和侧面抛光光纤之间,以促进传播模式的相位匹配。 在通道覆盖波导中的光能的放大建立在逐渐消除的单个拍子长度内,以使能量渐逝于侧面抛光的光纤。

    Optical waveguide with dissimilar core and cladding materials, and light emitting device employing the same
    7.
    发明授权
    Optical waveguide with dissimilar core and cladding materials, and light emitting device employing the same 失效
    具有不同的芯和包层材料的光波导和使用其的发光器件

    公开(公告)号:US06438304B1

    公开(公告)日:2002-08-20

    申请号:US09702077

    申请日:2000-10-30

    IPC分类号: G02B602

    CPC分类号: H01S3/063

    摘要: An optical waveguide, radiation emitting device employing the same, and process for fabricating the radiation emitting device are provided. The optical waveguide has a core fabricated of a first material with a first index of refraction and cladding surrounding the core fabricated of a second material with a second index of refraction. The core is an active material which emits radiation at a desired wavelength when pumped with radiation of a predetermined wavelength, and the first material and second material are dissimilar materials, having been separately fabricated and subsequently physically assembled as the waveguide.

    摘要翻译: 提供了一种光波导,使用其的辐射发射装置,以及用于制造辐射发射装置的方法。 光波导具有由第一材料制成的芯,该第一材料具有第一折射率和围绕由具有第二折射率的第二材料制成的芯的包层。 芯是当以预定波长的辐射泵送时发射所需波长的辐射的活性材料,并且第一材料和第二材料是不同的材料,已被单独制造并随后物理组装为波导。

    Compact optical amplifier with integrated optical waveguide and pump source

    公开(公告)号:US06208456B1

    公开(公告)日:2001-03-27

    申请号:US09316102

    申请日:1999-05-24

    申请人: Brian L. Lawrence

    发明人: Brian L. Lawrence

    IPC分类号: H01S300

    CPC分类号: H01S3/063 H01S3/025

    摘要: An optical amplifier with integrated optical waveguide, pump source and other, optional components for amplifying an input optical signal coupled from a fiber optic. The amplifier includes a housing having these components mounted therein, and appropriate optics for coupling the input and output optical signals to and from the appropriate ports, and for carrying an optical pump signal from its source to the waveguide. The optical waveguide disclosed is a channel waveguide amplification chip, having a relatively small size; and the pump source disclosed is a laser diode capable of generating the optical pump signal internal to the housing with only electrical (e.g., power) signals applied thereto from outside of the housing. Other optional components may be provided for cooperative optical processing in the amplifier housing. The disclosed optical amplifier offers size and cost advantages over other known systems.

    Organic photochromic compositions and method for fabrication of polymer
waveguides
    9.
    发明授权
    Organic photochromic compositions and method for fabrication of polymer waveguides 失效
    有机光致变色组合物和聚合物波导的制造方法

    公开(公告)号:US6091879A

    公开(公告)日:2000-07-18

    申请号:US153735

    申请日:1998-09-15

    摘要: Optical waveguides prepared by irradiating selected regions of positive photochromic polymeric materials with actinic radiation are disclosed. The photochromic materials undergo an irreversible photochemical change which results in an increase in the refractive index of light-exposed regions. In addition, the materials exhibit negligible second-order polarizability prior to exposure and excellent nonlinear optical properties after exposure and polarization. Thus, the exposed regions are particularly useful as the core in active waveguides for use in second-order nonlinear optical applications, as well as the core in passive waveguides. In addition, a simple two step process is disclosed for forming optical waveguides from the positive photochromic polymers. Optical structures, such as optical integrated circuits, and optical devices which incorporate the waveguides are also disclosed. The optical devices may be used as optical modulators, filters, attenuators, amplifiers, frequency converters, and electric field sensors, as well as in other nonlinear optical applications.

    摘要翻译: 公开了通过用光化辐射照射正光致变色聚合材料的选定区域制备的光波导。 光致变色材料经历不可逆的光化学变化,导致曝光区域的折射率增加。 此外,材料在曝光之前显示出可忽略的二阶极化率,并且在曝光和极化后具有极好的非线性光学特性。 因此,暴露区域特别适用于用于二阶非线性光学应用的有源波导中的核心以及无源波导中的核心。 另外,公开了从正型光致变色聚合物形成光波导的简单的两步法。 还公开了诸如光学集成电路的光学结构和结合波导的光学装置。 光学器件可以用作光学调制器,滤波器,衰减器,放大器,变频器和电场传感器,以及其它非线性光学应用。

    Method for fabricating an optical waveguide

    公开(公告)号:US06270604B1

    公开(公告)日:2001-08-07

    申请号:US09121455

    申请日:1998-07-23

    IPC分类号: B32B3100

    摘要: A method in which a separate preformed optical material is suitably sized for easy handling, manipulation, and fabrication into a waveguide having a core (formed from the optical material) having transverse cross-sectional dimensions on the order of only tens of microns. The method may include a plurality of mechanical steps, e.g., lapping, polishing, and/or dicing, and bonding steps, e.g., attaching with adhesives. In one embodiment, the method includes the steps of providing an optical material, thinning and polishing the optical material to form a core comprising a plurality of longitudinally extending surfaces, providing a plurality of support substrates, and attaching the plurality of support substrates to the longitudinally extending surfaces of the core. The plurality of support substrates may be attached to the plurality of longitudinally extending surfaces of the optical material with an adhesive. The optical material may include a high refractive index, and the plurality of support substrates and/or the adhesive may include a low refractive index.