公开(公告)号：US20080267555A1

公开(公告)日：2008-10-30

申请号：US11914637

申请日：2006-05-15

Applicant: Raman Kashyap ,  Vincent Treanton ,  Luftu Celebi Ozcan

Inventor： Raman Kashyap ,  Vincent Treanton ,  Luftu Celebi Ozcan

IPC: G02B6/00

CPC classification number: G01N21/774 ,  G01N21/553 ,  G01N21/554 ,  G01N2021/7776 ,  G01N2021/7779

Abstract: An optical waveguide sensing method and device in which a waveguide layer receives an optical signal and propagates the optical signal in accordance with a predetermined optical waveguide propagation mode. A testing medium surface in communication with the waveguide layer is responsive to a testing medium for modifying at least one characteristic of the propagated optical signal in relation to a given parameter of the testing medium. In this manner, the modified characteristic of the propagated optical signal can be measured in view of determining the given parameter of the testing medium.

Abstract translation: 一种光波导传感方法和装置，其中波导层接收光信号并根据预定的光波导传播模式传播光信号。 与波导层通信的测试介质表面响应于测试介质，用于相对于测试介质的给定参数修改传播的光信号的至少一个特性。 以这种方式，考虑到确定测试介质的给定参数，可以测量传播的光信号的修改特性。

公开(公告)号：US20080264910A1

公开(公告)日：2008-10-30

申请号：US11575285

申请日：2004-10-05

Applicant: Raman Kashyap ,  Vincent Treanton

Inventor： Raman Kashyap ,  Vincent Treanton

IPC: B23K26/36

CPC classification number: C03C23/0025 ,  B23K26/0613 ,  B23K26/067 ,  B23K26/40 ,  B23K2103/42 ,  B23K2103/50 ,  G02B6/10 ,  G02B6/13

Abstract: A one step process for fabricating planar optical waveguides comprises using a laser to cut at least two channels in a substantially planar surface of a piece of dielectric material defining a waveguide there between. The shape and size of the resulting guide can be adjusting by selecting an appropriate combination of laser beam spatial profile, of its power and of the exposure time. A combination of heating and writing lasers can also be used to fabricate waveguides in a dielectric substrate, wherein the heating laser heats the substrate with a relatively broad focused spot, the power of the heating laser being controlled to raise the temperature heating the substrate just below the substrate's threshold temperature at which it begins to absorb electro-magnetic radiation, the writing laser, which yields a spot size smaller than the heating laser then melts the substrate within the focal spot of the heating laser. Compare to processes from the prior art, a waveguide fabrication process according to the present invention results in lower cost, faster processing time and applicability to a wider range of materials. The present process is particularly suited for the mass production of inexpensive photonic devices.

Abstract translation: 用于制造平面光波导的一步法包括使用激光器在限定其间的波导的一块电介质材料的基本上平坦的表面中切割至少两个通道。 可以通过选择激光束空间分布，其功率和曝光时间的适当组合来调整所得到的引导件的形状和尺寸。 加热和写入激光器的组合也可用于在电介质基底中制造波导，其中加热激光器用相对宽的聚焦点加热基底，加热激光器的功率被控制以提高温度加热衬底 基板的开始吸收电磁辐射的阈值温度，产生小于加热激光器的光斑尺寸的写入激光器然后熔化加热激光器焦点内的基板。 与现有技术的工艺相比，根据本发明的波导制造工艺导致更低的成本，更快的处理时间和对更宽范围的材料的适用性。 本发明的方法特别适用于批量生产廉价光子器件。

公开(公告)号：US20100061689A1

公开(公告)日：2010-03-11

申请号：US12514743

申请日：2007-11-13

Applicant: Raman Kashyap ,  Vincent Treanton

Inventor： Raman Kashyap ,  Vincent Treanton

IPC: G02B6/10 ,  B29D11/00

CPC classification number: G02B6/136

Abstract: The present invention is concerned with a process for fabricating a buried optical waveguide, comprising providing a multi-layer piece of material having a waveguide core layer, generating a laser beam and producing by ablation at least two trenches by applying the laser beam onto the multi-layer piece of material. The two trenches extend through the multi-layer piece of material including the core layer. Upon the ablation, melted material from the multi-layer piece is produced and the core layer is encapsulated between the two trenches with the melted material to produce the buried optical waveguide in the multi-layer piece of material. The present invention also relates to a buried optical waveguide comprising a multi-layer piece of material having a waveguide core layer, at least two trenches laser ablated through the multi-layer piece of material including the core layer and encapsulating material having melted from the multi-layer piece upon laser ablation and leaked to cover and therefore encapsulate the core layer in the at least two trenches to thereby form the buried optical waveguide.

Abstract translation: 本发明涉及一种用于制造掩埋光波导的方法，包括提供具有波导芯层的多层材料片材，产生激光束并通过将激光束施加到多个多孔体上来消融至少两个沟槽产生 层材料。 两个沟槽延伸通过包括芯层的多层材料片。 在消融时，产生来自多层件的熔融材料，并且利用熔化的材料将芯层封装在两个沟槽之间，以在多层材料中产生掩埋光波导。 本发明还涉及一种掩埋光波导，其包括具有波导芯层的多层材料片材，至少两个激光器通过包括芯层的多层材料烧蚀并且从多层熔化的封装材料 激光烧蚀并且漏出以覆盖并因此将芯层封装在至少两个沟槽中，从而形成掩埋光波导。

公开(公告)号：US07697796B2

公开(公告)日：2010-04-13

申请号：US11914637

申请日：2006-05-15

Applicant: Raman Kashyap ,  Vincent Treanton ,  Lutfu Celebi Ozcan

Inventor： Raman Kashyap ,  Vincent Treanton ,  Lutfu Celebi Ozcan

IPC: G02B6/00 ,  G02B6/02

CPC classification number: G01N21/774 ,  G01N21/553 ,  G01N21/554 ,  G01N2021/7776 ,  G01N2021/7779

Abstract: An optical waveguide sensing method and device in which a waveguide layer receives an optical signal and propagates the optical signal in accordance with a predetermined optical waveguide propagation mode. A testing medium surface in communication with the waveguide layer is responsive to a testing medium for modifying at least one characteristic of the propagated optical signal in relation to a given parameter of the testing medium. In this manner, the modified characteristic of the propagated optical signal can be measured in view of determining the given parameter of the testing medium.

Abstract translation: 一种光波导传感方法和装置，其中波导层接收光信号并根据预定的光波导传播模式传播光信号。 与波导层通信的测试介质表面响应于测试介质，用于相对于测试介质的给定参数修改传播的光信号的至少一个特性。 以这种方式，考虑到确定测试介质的给定参数，可以测量传播的光信号的修改特性。

公开(公告)号：US07162161B2

公开(公告)日：2007-01-09

申请号：US09805377

申请日：2001-03-14

Applicant: Richard Wyatt ,  Robert M. Percival ,  Raman Kashyap

Inventor： Richard Wyatt ,  Robert M. Percival ,  Raman Kashyap

IPC: H04B10/12

CPC classification number: G02B6/264 ,  A61F9/008 ,  A61F9/00825 ,  A61F2009/00872 ,  B23K26/064 ,  B23K26/707 ,  G02B6/14 ,  G02B6/262 ,  H01S3/005

Abstract: A section of tapered optical fiber is provided to protect optical components from catastrophic damage that may propagate within an optical route. The tapered section functions as a fuse to arrest the propagation of optical power induced damage by leaking optical power from a waveguiding region below a threshold, below which further propagation of damage is not supported.

Abstract translation: 提供一段锥形光纤以保护光学部件免受可能在光学路线内传播的灾难性损坏。 锥形部分用作保险丝，以通过从低于阈值的波导区域泄漏光功率来阻止光功率引起的损伤的传播，低于该波长区域不支持进一步的损伤传播。

公开(公告)号：US06987909B1

公开(公告)日：2006-01-17

申请号：US10305042

申请日：2002-11-26

Applicant: Raman Kashyap ,  Andre Boudreault ,  Robert A. Harmon ,  Irina A. Kostko ,  Michael G. Martin ,  Patricia Scarsella ,  Feodor N. Timofeev ,  Pierre Tremblay ,  Martin Vezina ,  Claude Carignan

Inventor： Raman Kashyap ,  Andre Boudreault ,  Robert A. Harmon ,  Irina A. Kostko ,  Michael G. Martin ,  Patricia Scarsella ,  Feodor N. Timofeev ,  Pierre Tremblay ,  Martin Vezina ,  Claude Carignan

IPC: G02B6/34

CPC classification number: G02B6/0218

Abstract: An athermalized optical fiber component assembly including a limiting member, a mounting structure attached to the limiting member, a temperature compensating substrate attached to the mounting structure, and an optical fiber component mounted on the temperature compensating substrate. The movement of the temperature compensating substrate as a function of temperature is constrained by the limiting member. Also, a method for manufacturing an athermalized optical fiber component assembly.

Abstract translation: 一种无热水化的光纤部件组件，包括限制部件，安装在限制部件上的安装结构，安装在安装结构上的温度补偿基板和安装在温度补偿基板上的光纤部件。 作为温度的函数的温度补偿衬底的移动受限制构件的约束。 另外，制造无热水化光纤部件组件的方法。

公开(公告)号：US6141469A

公开(公告)日：2000-10-31

申请号：US180297

申请日：1998-11-05

Applicant: Raman Kashyap

Inventor： Raman Kashyap

IPC: G02B6/34 ,  G02B6/26 ,  G01B9/02

CPC classification number: G02B6/2938 ,  G02B6/29338 ,  G02B6/29353 ,  G02B6/29395 ,  G02B6/29317

Abstract: A multiple band pass optical filter comprises an interferometer, such as a Michelson interferometer, with de-tuned reflective Bragg gratings 8, 9 that produce multiple, separate, substantially equal reflectivity pass bands for light passing from the interferometer's input port P1 to output port P2.

Abstract translation: PCT No.PCT / GB98 / 01761 Sec。 371日期：1998年11月5日 102（e）日期1998年11月5日PCT Filed 1998年6月17日PCT公布。 公开号WO98 / 59269 日期：1998年12月30日多频带光学滤波器包括干涉仪，例如迈克尔逊干涉仪，其具有去调谐的反射布拉格光栅8,9，其产生用于从干涉仪输入端口通过的光的多个分开的基本相等的反射通过带 P1输出端口P2。

公开(公告)号：US6044190A

公开(公告)日：2000-03-28

申请号：US68084

申请日：1998-05-04

Applicant: Raman Kashyap

Inventor： Raman Kashyap

IPC: G02B6/024 ,  G02F1/01 ,  G02F1/035 ,  G02F1/355 ,  G02F1/383 ,  G02B6/02

CPC classification number: G02F1/3558 ,  G02F1/0115 ,  G02F1/383

Abstract: An optical fibre is formed with longitudinal recesses (11, 12) which extend toward its core (3) through cladding region (2). The recesses receive electrode structures (20a, b) made of glass, which include tongues (23a, b) that fit into the recesses, on which metal electrode strips (a, b) are formed. A potential difference applied between the strips (a, b) can induce electro-optic effects in the core.

Abstract translation: PCT No.PCT / GB97 / 00266 Sec。 371日期：1998年5月4日 102（e）日期1998年5月4日PCT 1997年1月30日PCT PCT。 公开号WO97 / 28481 日期1997年8月7日光纤形成有通过包层区域（2）向其芯（3）延伸的纵向凹槽（11,12）。 凹部接收由玻璃制成的电极结构（20a，b），其包括装配到凹部中的形成有金属电极条（a，b）的舌状物（23a，b）。 条带（a，b）之间施加的电位差​​可能会导致核心中的电光效应。

公开(公告)号：US5384884A

公开(公告)日：1995-01-24

申请号：US50194

申请日：1993-05-04

Applicant: Raman Kashyap ,  Robert J. Campbell

Inventor： Raman Kashyap ,  Robert J. Campbell

IPC: G02B5/18 ,  G02B6/02 ,  G02B6/10 ,  G02B6/34

CPC classification number: G02B6/02128

Abstract: An optical fibre is fixed between a clamp and a piezo-electric translation stage. An argon ion laser emitting at 514.5 nm is used to write Bragg gratings in the fibre. A different longitudinal stress is applied to the fibre before optically writing each Bragg grating. The fibre when unstressed will have a Bragg grating of different peak reflectivity corresponding to the number of different applied stresses.

Abstract translation: PCT No.PCT / GB91 / 01968 Sec。 371日期：1993年5月4日 102（e）日期1993年5月4日PCT 1991年11月8日PCT PCT。 公开号WO92 / 08999 日期：1992年5月29日。光纤固定在夹具和压电平移台之间。 在514.5nm发射的氩离子激光用于在光纤中写入布拉格光栅。 在光学写入每个布拉格光栅之前，对光纤施加不同的纵向应力。 不受应力时的光纤将具有不同峰值反射率的布拉格光栅，其对应于不同施加应力的数量。

公开(公告)号：US20090231682A1

公开(公告)日：2009-09-17

申请号：US12355951

申请日：2009-01-19

Applicant: Raman Kashyap ,  Galina Nemova

Inventor： Raman Kashyap ,  Galina Nemova

IPC: H01S3/00

CPC classification number: H01S3/06754 ,  G01M11/319 ,  G02B6/02095 ,  H01S3/0675 ,  H01S3/06758 ,  H01S3/094007 ,  H01S3/10023 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/03

Abstract: Fiber light amplifiers adapted for high power application are provided. In embodiments of the invention, the light signal to be amplified is coupled to a cladding mode of an active waveguide region which is cladding doped. The amplified light is coupled to an output fiber have waveguiding properties matching those of the active cladding of the active waveguide region. In other embodiments, two or more amplifying stages are provided coupled by a wavelength selective loss element which couples the Stokes wave co-propagating with the signal to be amplified out of the signal guiding mode prior to the onset of SRS.

Abstract translation: 提供适用于大功率应用的光纤放大器。 在本发明的实施例中，要被放大的光信号耦合到作为包层掺杂的有源波导区域的包层模式。 放大的光耦合到具有与有源波导区域的有源包层匹配的波导特性的输出光纤。 在其它实施例中，通过波长选择性损耗元件耦合两个或更多个放大级，该波长选择性损耗元件在SRS发生之前将共同传播的斯托克斯波与要被放大的信号耦合出信号引导模式。