公开(公告)号：US06724533B2

公开(公告)日：2004-04-20

申请号：US10062228

申请日：2002-01-31

Applicant: John Hoose ,  Robert Frankel ,  Evgeny Popov

Inventor： John Hoose ,  Robert Frankel ,  Evgeny Popov

IPC: G02B518

CPC classification number: G02B5/18

Abstract: A lamellar volume grating operating in reflection and transmission and providing a substantially wavelength- and polarization-independent diffraction efficiency is disclosed. The lamellar grating has an approximately rectangular grating profile with a height-to-width ratio of the grooves or “teeth” advantageously greater than 2. The grating operates preferably in first order and can be implemented as an immersion grating. In particular, the lamellar volume grating described herein can be employed in an optical multiplexer/demultiplexer arrangement with small overall dimensions.

Abstract translation: 公开了一种在反射和透射中工作并提供基本上波长和偏振无关的衍射效率的层状体积光栅。 层状光栅具有近似矩形的光栅轮廓，其凹槽或“齿”的高度 - 宽度比有利地大于2.光栅优选以第一级工作，并且可以实现为浸没式光栅。 特别地，本文描述的层状体积光栅可以用于具有小尺寸的光复用器/解复用器布置。

公开(公告)号：US06697411B2

公开(公告)日：2004-02-24

申请号：US10118636

申请日：2002-04-08

Applicant: John Hoose ,  Robert Frankel

Inventor： John Hoose ,  Robert Frankel

IPC: H01S310

CPC classification number: H01S5/141 ,  H01S5/4025 ,  H01S5/4062 ,  H01S5/4087

Abstract: A multi-wavelength external cavity laser system is disclosed, wherein an array of individual laser elements is placed in a shared laser cavity for all wavelengths that is defined by a free space grating, an optional reflector, and a single relay lens. Laser radiation from the cavity can be externally modulated at each wavelength and outputted as an overlapping beam having substantially all the wavelengths produced by the laser elements through a single fiber or as an array of wavelength-separated beams. A modular design facilitates the addition and/or repair of individual or several channels.

Abstract translation: 公开了一种多波长外腔激光器系统，其中将单个激光元件的阵列放置在由自由空间光栅，可选反射器和单个中继透镜限定的所有波长的共享激光腔中。 来自空腔的激光辐射可以在每个波长处进行外部调制并作为重叠光束输出，该重叠光束具有由激光元件通过单根光纤或波长分离的光束阵列产生的基本上所有的波长。 模块化设计有助于单个或多个通道的添加和/或修复。

公开(公告)号：US08116002B2

公开(公告)日：2012-02-14

申请号：US12199582

申请日：2008-08-27

Applicant: John Hoose

Inventor： John Hoose

IPC: G02B5/18

CPC classification number: G02B5/1861

Abstract: A reflection grating device with a continuous non-reflecting dielectric adjusting layer disposed between a grating structure and one or more continuous reflecting layers is disclosed that operates in an order of interest, such as the 1st order or 3rd order of diffraction, with high efficiency and near-exclusion of unwanted orders. Such devices can be employed, for example, in telecommunication and laser applications.

Abstract translation: 公开了一种设置在光栅结构和一个或多个连续反射层之间的连续的非反射介质调节层的反射光栅装置，其以高效率按照感兴趣的顺序例如1级或3级衍射工作， 近乎排除不需要的订单。 这样的装置可以用于例如电信和激光应用中。

公开(公告)号：US20100091369A1

公开(公告)日：2010-04-15

申请号：US12579134

申请日：2009-10-14

Applicant: John Hoose

Inventor： John Hoose

IPC: G02B5/18 ,  B44C1/22

CPC classification number: G02B5/1866 ,  G02B5/1857

Abstract: A double-layer grating structure for efficient retroreflection of incident radiation and efficient transmission of the undiffracted incident radiation is disclosed. The grating is constructed of two spaced-apart layers of periodically arranged metal stripes, wherein the stripes in one layer overlap with gaps between the stripes in the second layer. The layers are encapsulated with a dielectric material. A method for producing such grating is also described.

Abstract translation: 公开了一种用于有效回射入射辐射和有效透射未衍射入射辐射的双层光栅结构。 光栅由周期性布置的金属条纹的两个隔开的层构成，其中一个层中的条与第二层中的条之间的间隙重叠。 这些层被电介质材料包封。 还描述了制造这种光栅的方法。

公开(公告)号：US20060092994A1

公开(公告)日：2006-05-04

申请号：US10997224

申请日：2004-11-23

Applicant: Robert Frankel ,  John Hoose

Inventor： Robert Frankel ,  John Hoose

IPC: H01S3/098

CPC classification number: H01S3/1112 ,  H01S3/08009 ,  H01S3/105 ,  H01S3/1065 ,  H01S3/1118 ,  H01S3/136 ,  H01S3/1618 ,  H01S3/2383 ,  H01S5/028 ,  H01S5/0609 ,  H01S5/141 ,  H01S5/143 ,  H01S5/4062

Abstract: An amplified commonly mode-locked and/or Q-switched external cavity laser device with a plurality of gain elements and a plurality of amplifying elements is described. The device produces amplified optical pulses of picosecond to nanoseconds duration. The amplified pulses can be used in applications requiring large optical pulse energy and also high average optical power, such as material processing, nonlinear optics, extreme UV spectroscopy, and generation of x-rays.

Abstract translation: 描述了具有多个增益元件和多个放大元件的放大的通常的锁模和/或Q开关外腔激光器件。 该器件产生皮秒至纳秒持续时间的放大光脉冲。 放大的脉冲可用于需要大的光脉冲能量和高平均光功率的应用中，如材料处理，非线性光学，极紫外光谱和X射线产生。

公开(公告)号：US06693925B2

公开(公告)日：2004-02-17

申请号：US10118640

申请日：2002-04-08

Applicant: John Hoose ,  Robert Frankel

Inventor： John Hoose ,  Robert Frankel

IPC: H01S330

CPC classification number: H01S3/2383 ,  H01S3/0085 ,  H01S3/06704 ,  H01S3/08009 ,  H01S3/08013 ,  H01S3/08086 ,  H01S3/1055 ,  H01S3/1062 ,  H01S5/0085 ,  H01S5/4062 ,  H01S5/4087

Abstract: A multi-wavelength external cavity fiber laser system is disclosed. Laser radiation from the cavity can be externally modulated at each wavelength and outputted as an overlapping beam having substantially all the wavelengths produced by the laser elements through a single fiber or as an array of wavelength-separated beams. The fiber laser can include an intra-cavity etalon that allows all wavelength to be tuned simultaneously.

Abstract translation: 公开了一种多波长外腔光纤激光系统。 来自空腔的激光辐射可以在每个波长处进行外部调制并作为重叠光束输出，该重叠光束具有由激光元件通过单根光纤或波长分离的光束阵列产生的基本上所有的波长。 光纤激光器可以包括允许所有波长同时调谐的腔内标准具。

公开(公告)号：US06496622B1

公开(公告)日：2002-12-17

申请号：US09950124

申请日：2001-09-10

Applicant: John Hoose ,  Robert Frankel ,  Evgeny Popov

Inventor： John Hoose ,  Robert Frankel ,  Evgeny Popov

IPC: G02B634

CPC classification number: G02B6/29307 ,  G02B6/2931 ,  G02B6/29373 ,  G02B6/2938 ,  G02B6/29397 ,  G02B6/32

Abstract: A grating structure useful for WDM multiplexer/demultiplexer applications is described. The grating structure has a substantially polarization-independent diffraction efficiency of a predetermined useful wavelength range, for example, between 1.4 and 1.6 &mgr;m. Each grating period includes a triangular section and a flat-topped section, with the width of the flat-topped section between 20 and 50% of the grating period. The disclosed grating structure can be formed in any material that is substantially transparent over the useful wavelength range and used in either a Littrow and a Littman-Metcalf configuration.

Abstract translation: 描述了对WDM多路复用器/解复用器应用有用的光栅结构。 光栅结构具有预定有用波长范围的基本上偏振无关的衍射效率，例如在1.4和1.6μm之间。 每个光栅周期包括三角形截面和平顶部分，平顶部分的宽度在光栅周期的20％到50％之间。 所公开的光栅结构可以以任何在有用的波长范围内基本透明并且以Littrow和Littman-Metcalf配置使用的材料形成。

公开(公告)号：US06487019B2

公开(公告)日：2002-11-26

申请号：US09816515

申请日：2001-03-23

Applicant: John Hoose

Inventor： John Hoose

IPC: G02B518

CPC classification number: G02B6/29308 ,  G02B5/1814 ,  G02B5/1861 ,  G02B6/2931 ,  G02B6/2938

Abstract: A grating device with a substantially polarization-independent diffraction efficiency is disclosed. The grating device is preferably a surface grating that can be produced by ruling or holographically, and includes at least two different grating elements with the same grating period, but different modulation depths or blaze angles. The blaze angles and the illuminated areas of the respective grating elements can be selected to produce a substantially polarization-independent and optionally also wavelength-independent response of the grating device.

Abstract translation: 公开了具有基本上偏振无关的衍射效率的光栅装置。 光栅装置优选地是可以通过刻划或全息地产生的表面光栅，并且包括具有相同光栅周期但是不同的调制深度或闪耀角的至少两个不同的光栅元件。 可以选择各个光栅元件的闪耀角度和照明区域以产生光栅装置的基本上偏振无关的和任选地与波长无关的响应。

公开(公告)号：US08279525B2

公开(公告)日：2012-10-02

申请号：US12469904

申请日：2009-05-21

Applicant: John Hoose

Inventor： John Hoose

IPC: G02B5/18

CPC classification number: G02B6/2931 ,  G02B5/1823 ,  G02B27/4261

Abstract: Three-dimensional grating device includes two (crossed) diffraction gratings, exhibits diffraction efficiency substantially independent of the incident polarization inside an optical communication spectral window from 1.5-1.6 μm. The gratings are characterized by different periods in two directions, chosen to support only one dispersive diffraction order in addition to the zero-(specular) order. Gratings may be orthogonal. Exemplary grating profiles include but are not limited to sinusoidal and truncated pyramidal (trapezoidal) profiles. A method for diffracting polarization independent light with 90% or higher efficiency. Applications include various wavelength control devices particularly useful in telecommunications.

Abstract translation: 三维光栅装置包括两个（交叉）衍射光栅，其衍射效率基本上与1.5-1.6μm的光通信光谱窗内的入射极化无关。 光栅的特征在于在两个方向上的不同周期，除了零（镜面）顺序之外，选择仅支持一个色散衍射级。 光栅可以是正交的。 示例性光栅轮廓包括但不限于正弦和截锥形（梯形）轮廓。 用于衍射具有90％或更高效率的偏振独立光的方法。 应用包括在电信中特别有用的各种波长控制装置。

公开(公告)号：US07751461B2

公开(公告)日：2010-07-06

申请号：US12184712

申请日：2008-08-01

Applicant: John Hoose

Inventor： John Hoose

IPC: H01S3/22

CPC classification number: H01S3/08036 ,  H01S3/08004 ,  H01S3/1055 ,  H01S3/225

Abstract: An excimer laser cavity is disclosed which includes at least one grating-prism (grism) and a wavelength-selective diffraction grating arranged in sequence. The grism grating surface faces the gain medium and produces an expanded beam which is diffracted on the same side of the prism grating surface normal as the incident beam. The expanded diffracted beam is transmitted through a second surface of the grism either to another grating surface of an additional grism or to a wavelength-selective diffraction grating operating in Littrow configuration. The laser produces a laser output beam with a narrow spectral linewidth which is suitable, in particular, for lithography applications.

Abstract translation: 公开了一种准分子激光器腔，其包括依次布置的至少一个光栅 - 棱镜（棱镜）和波长选择性衍射光栅。 棱镜光栅表面面向增益介质并产生扩散光束，其在与入射光束垂直的棱镜光栅表面的相同侧上衍射。 扩展的衍射光束通过棱镜的第二表面传输到附加棱镜的另一个光栅表面或者以Littrow配置工作的波长选择性衍射光栅。 激光产生具有窄光谱线宽的激光输出光束，其特别适用于光刻应用。