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1.发明申请
公开(公告)号：WO1997026688A2
公开(公告)日：1997-07-24
申请号：PCT/US1997000306
申请日：1997-01-10
Applicant: SDL, INC.
Inventor： SDL, INC. , WAARTS, Robert, G. , SANDERS, Steven , WELCH, David, F. , SCIFRES, Donald, R.
IPC: H01S03/06
CPC classification number: H01S3/094003 , H01S3/06729 , H01S3/06754 , H01S3/06758 , H01S3/06787 , H01S3/094026 , H01S3/094042 , H01S3/094076 , H01S3/094096 , H01S3/09415 , H01S3/1301 , H01S2301/02
Abstract: Two approaches are provided for achieving an optical amplifier system capable of producing high peak power, high energy pulse outputs while suppressing scattering noise. The first approach relates to an optical amplifier system which has at least one laser diode pulsed or cw pumped double clad fiber amplifier utilized for receiving a high frequency modulated injected signal pulse of short duration from the laser diode, via the fiber core, for amplification by coupling pump light into the inner cladding of the fiber. The average signal power is sufficient to saturate the gain of the fiber so as to minimize significant onset and buildup of forward and backward scattering noise. The duty cycle of the injected signal source pulse is chosen to allow adequate gain recovery in the fiber amplifier between pulses. The second approach relates to a cascaded optical amplifier system having at least two optical amplifying stages with two pulsed pump sources provided and two amplifying media, the first of which receives the injection and at least one pump signal wherein the injection pulsed signal is amplified to a first power and energy level. The second amplifying medium, optically coupled to the first, amplifies the first level signal to a second level amplified, injection pulsed signal. The duty cycle of the injection pulsed optical signal is synchronized with the first and second pulsed pump signals with the first pulsed pump signal having a different duration in the duty cycle than the second pulsed pump signal.
Abstract translation: 提供两种方法来实现能够产生高峰值功率，高能量脉冲输出同时抑制散射噪声的光放大器系统。 第一种方法涉及一种光放大器系统，其具有至少一个激光二极管脉冲或双泵浦双包层光纤放大器，用于经由光纤芯从激光二极管接收短持续时间的高频调制注入信号脉冲，以便通过光纤芯放大 将泵浦光耦合到光纤的内包层中。 平均信号功率足以使光纤的增益饱和，从而最小化正向和反向散射噪声的显着开始和累积。 选择注入的信号源脉冲的占空比以允许在脉冲之间的光纤放大器中的足够的增益恢复。 第二种方法涉及一种具有至少两个具有两个脉冲泵浦源的光放大级的级联光放大器系统和两个放大介质，其中第一放大介质接收注入和至少一个泵浦信号，其中将注入脉冲信号放大到 第一电力和能源水平。 光耦合到第一放大介质的第二放大介质将第一电平信号放大到第二电平放大的注入脉冲信号。 注入脉冲光信号的占空比与第一和第二脉冲泵浦信号同步，其中第一脉冲泵浦信号在占空比上具有与第二脉冲泵浦信号不同的持续时间。
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公开(公告)号：WO1996011539A2
公开(公告)日：1996-04-18
申请号：PCT/US1995013301
申请日：1995-10-04
Applicant: SDL, INC.
Inventor： SDL, INC. , SCIFRES, Donald, R.
IPC: H04L00/00
CPC classification number: H04B10/1149 , H04W84/12
Abstract: An infrared laser diode wireless local area network for communication between spatially dispersed terminals (22, 30, 40; 56, 58, 60, 62) such as computers which may be located in a single room (20) or in adjacent rooms (50, 52, 64). The lasers (90, 120, 140, 157) may be tuned to emit at varying frequencies for wavelength multiplexing, or a plurality of lasers (138) each having a different output frequency can be connected with each terminal. A receiver (26, 34, 44; 72, 80, 76, 84) connected to each terminal may similarly detect only a single narrow waveband or may detect a plurality of such wavebands. A transceiver (68, 70) may be employed for signal transmission between separate rooms. High speed data modulation of the carrier waves is provided with MOPA (90) or similar lasers, and broad angular dispersion of the output is achieved by such lasers along with dispersive lenses (132).
Abstract translation: 一种用于在空间分散的终端（22,30,40; 56,58,60,62）之间进行通信的红外激光二极管无线局域网，诸如可以位于单个房间（20）或相邻房间（50， 52,64）。 可以将激光器（90,120,140,157）调谐为以波长多路复用的变化频率发射，或者可以与每个终端连接每个具有不同输出频率的多个激光器（138）。 连接到每个终端的接收器（26,34,44,72,80,96,84）可以类似地仅检测单个窄波段或者可以检测多个这样的波段。 可以采用收发器（68,70）来在分开的房间之间进行信号传输。 载波的高速数据调制具有MOPA（90）或类似的激光器，并且通过这种激光器与色散透镜（132）一起实现了输出的宽角度色散。
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公开(公告)号：WO1995020811A1
公开(公告)日：1995-08-03
申请号：PCT/US1995000581
申请日：1995-01-12
Applicant: SDL, INC.
Inventor： SDL, INC. , WAARTS, Robert, G. , SCIFRES, Donald, R. , WELCH, David, F. , LANG, Robert, J.
IPC: G09G03/22
CPC classification number: G02B6/14 , G02B6/4249 , G02B26/0833 , G02B27/2228 , G09G3/3406 , G09G2310/0235 , H01S5/4025 , H01S5/4087 , H04N13/324 , H04N13/334 , H04N13/337
Abstract: A display system in which lasers scanlessly illuminate the pixels of a spatially modulating display panel (11, 13, 15), such as a liquid crystal display or micromirror array. At least three sources at least one of which is a laser with each different wavelengths are used, such as laser diode-based sources (81, 83, 85) producing red, green and blue light. The laser may be pulsed rapidly in sequence to provide time multiplexed illumination of all of the display pixels or may be operated in continuous (cw) mode, using color filters on the display, phase plates (147) or microlens arrays to image light spots (148) of each color only on designated pixels. Two sets of laser sources (123), either orthogonally linearly polarized or at slight different wavelengths, can be used to create 3-D images. Each set may illuminate a different display panel, one for each eye, or the two sets may be time multiplexed using the same display panel (125). A viewer has polarizing or bandpass filters in front of each eye to separate the binocular images. Fiberoptic coupling (99) of the laser sources (81, 83, 85, 87) can be used to physically separate these sources and their power supply from the display panel (115).
Abstract translation: 一种显示系统，其中激光器扫描地照射诸如液晶显示器或微镜阵列的空间调制显示面板（11,13,15）的像素。 使用至少三个源，其中至少一个是具有每个不同波长的激光器，例如产生红色，绿色和蓝色光的基于激光二极管的光源（81,83,85）。 激光器可以按顺序快速脉冲以提供所有显示像素的时间多路复用照明，或者可以连续（cw）模式使用显示器上的滤色器，相位板（147）或微透镜阵列成像光点 148）每个颜色只在指定的像素上。 可以使用两组正交线性偏振或稍微不同波长的激光源（123）来创建3-D图像。 每个组可以照亮不同的显示面板，每个眼睛一个，或者两组可以使用相同的显示面板（125）进行时间复用。 观众在每只眼睛前面具有偏光或带通滤镜，以分离双目图像。 可以使用激光源（81,83,85,87）的光纤耦合（99）来物理地将这些源及其电源与显示面板（115）分离。
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Patent Agency Ranking
公开(公告)号：EP0742940A1
公开(公告)日：1996-11-20
申请号：EP95907449.0
申请日：1995-01-12
Applicant: SDL, Inc.
Inventor： WAARTS, Robert, G. , SCIFRES, Donald, R. , WELCH, David, F. , LANG, Robert, J.
CPC classification number: G02B6/14 , G02B6/4249 , G02B26/0833 , G02B27/2228 , G09G3/3406 , G09G2310/0235 , H01S5/4025 , H01S5/4087 , H04N13/324 , H04N13/334 , H04N13/337
Abstract: A display system in which lasers scanlessly illuminate the pixels of a spatially modulating display panel (11, 13, 15), such as a liquid crystal display or micromirror array. At least three sources at least one of which is a laser with each different wavelengths are used, such as laser diode-based sources (81, 83, 85) producing red, green and blue light. The laser may be pulsed rapidly in sequence to provide time multiplexed illumination of all of the display pixels or may be operated in continuous (cw) mode, using color filters on the display, phase plates (147) or microlens arrays to image light spots (148) of each color only on designated pixels. Two sets of laser sources (123), either orthogonally linearly polarized or at slight different wavelengths, can be used to create 3-D images. Each set may illuminate a different display panel, one for each eye, or the two sets may be time multiplexed using the same display panel (125). A viewer has polarizing or bandpass filters in front of each eye to separate the binocular images. Fiberoptic coupling (99) of the laser sources (81, 83, 85, 87) can be used to physically separate these sources and their power supply from the display panel (115).
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公开(公告)号：EP0875083B1
公开(公告)日：2002-12-04
申请号：EP97903766.0
申请日：1997-01-10
Applicant: SDL, Inc.
Inventor： WAARTS, Robert, G. , SANDERS, Steven , WELCH, David, F. , SCIFRES, Donald, R.
CPC classification number: H01S3/094003 , H01S3/06729 , H01S3/06754 , H01S3/06758 , H01S3/06787 , H01S3/094026 , H01S3/094042 , H01S3/094076 , H01S3/094096 , H01S3/09415 , H01S3/1301 , H01S2301/02
Abstract: Two approaches are provided for achieving an optical amplifier system capable of producing high peak power, high energy pulse outputs while suppressing scattering noise. The first approach relates to an optical amplifier system which has at least one laser diode pulsed or cw pumped double clad fiber amplifier utilized for receiving a high frequency modulated injected signal pulse of short duration from the laser diode, via the fiber core, for amplification by coupling pump light into the inner cladding of the fiber. The average signal power is sufficient to saturate the gain of the fiber so as to minimize significant onset and buildup of forward and backward scattering noise. The duty cycle of the injected signal source pulse is chosen to allow adequate gain recovery in the fiber amplifier between pulses. The second approach relates to a cascaded optical amplifier system having at least two optical amplifying stages with two pulsed pump sources provided and two amplifying media, the first of which receives the injection and at least one pump signal wherein the injection pulsed signal is amplified to a first power and energy level. The second amplifying medium, optically coupled to the first, amplifies the first level signal to a second level amplified, injection pulsed signal. The duty cycle of the injection pulsed optical signal is synchronized with the first and second pulsed pump signals with the first pulsed pump signal having a different duration in the duty cycle than the second pulsed pump signal.
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公开(公告)号：EP1000297B1
公开(公告)日：2002-05-29
申请号：EP98937190.1
申请日：1998-07-23
Applicant: SDL, Inc.
Inventor： SCIFRES, Donald, R.
CPC classification number: G02B6/0001 , B60Q1/0011 , Y10S362/80
Abstract: A vehicle (10) with a plurality of individually addressable light sources (25), preferably semiconductor laser light sources or light emitting diodes, each of which produces a beam of light, are optically coupled to a fiber optic waveguide (28a, 28b, 29a, 29b, 30a, 30b). The laser light sources (25) are grouped together preferably at a single location within the vehicle for easy access and conveniently located within the vehicle. Fiber waveguides waveguide (28a, 28b, 29a, 29b, 30a, 30b) distally transmit the beams to the optical loads of the vehicle, including the brake lights (13), taillights (12), instrumentation lights (17) and turn signals (15). Each fiber optic waveguide (28a, 28b, 29a, 29b, 30a, 30b) may be a single optical fiber, such as a multimode fiber, having a numerical aperture large enough to receive illumination from a plurality of light sources. In cases where some optical loads require a larger flux or brightness of light, such as vehicular headlights (16), which may be greater than a single optic fiber can transmit, the waveguide may comprise a bundle of optical fibers. Multiple light sources to a single optical output load allows switching to another operational light source or increase the intensity of remaining light sources should one light source fail. In this manner, the operational life of the vehicular lighting system is increased. Also disclosed is circuitry for operating applications of the system as well as illustrating the employment of color wavelength laser light sources.
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公开(公告)号：EP1000297A1
公开(公告)日：2000-05-17
申请号：EP98937190.1
申请日：1998-07-23
Applicant: SDL, Inc.
Inventor： SCIFRES, Donald, R.
CPC classification number: G02B6/0001 , B60Q1/0011 , Y10S362/80
Abstract: A vehicle (10) with a plurality of individually addressable light sources (25), preferably semiconductor laser light sources or light emitting diodes, each of which produces a beam of light, are optically coupled to a fiber optic waveguide (28a, 28b, 29a, 29b, 30a, 30b). The laser light sources (25) are grouped together preferably at a single location within the vehicle for easy access and conveniently located within the vehicle. Fiber waveguides waveguide (28a, 28b, 29a, 29b, 30a, 30b) distally transmit the beams to the optical loads of the vehicle, including the brake lights (13), taillights (12), instrumentation lights (17) and turn signals (15). Each fiber optic waveguide (28a, 28b, 29a, 29b, 30a, 30b) may be a single optical fiber, such as a multimode fiber, having a numerical aperture large enough to receive illumination from a plurality of light sources. In cases where some optical loads require a larger flux or brightness of light, such as vehicular headlights (16), which may be greater than a single optic fiber can transmit, the waveguide may comprise a bundle of optical fibers. Multiple light sources to a single optical output load allows switching to another operational light source or increase the intensity of remaining light sources should one light source fail. In this manner, the operational life of the vehicular lighting system is increased. Also disclosed is circuitry for operating applications of the system as well as illustrating the employment of color wavelength laser light sources.
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公开(公告)号：EP0875083A2
公开(公告)日：1998-11-04
申请号：EP97903766.0
申请日：1997-01-10
Applicant: SDL, Inc.
Inventor： WAARTS, Robert, G. , SANDERS, Steven , WELCH, David, F. , SCIFRES, Donald, R.
IPC: H01S3
CPC classification number: H01S3/094003 , H01S3/06729 , H01S3/06754 , H01S3/06758 , H01S3/06787 , H01S3/094026 , H01S3/094042 , H01S3/094076 , H01S3/094096 , H01S3/09415 , H01S3/1301 , H01S2301/02
Abstract: Two approaches are provided for achieving an optical amplifier system capable of producing high peak power, high energy pulse outputs while suppressing scattering noise. The first approach relates to an optical amplifier system which has at least one laser diode pulsed or cw pumped double clad fiber amplifier utilized for receiving a high frequency modulated injected signal pulse of short duration from the laser diode, via the fiber core, for amplification by coupling pump light into the inner cladding of the fiber. The average signal power is sufficient to saturate the gain of the fiber so as to minimize significant onset and buildup of forward and backward scattering noise. The duty cycle of the injected signal source pulse is chosen to allow adequate gain recovery in the fiber amplifier between pulses. The second approach relates to a cascaded optical amplifier system having at least two optical amplifying stages with two pulsed pump sources provided and two amplifying media, the first of which receives the injection and at least one pump signal wherein the injection pulsed signal is amplified to a first power and energy level. The second amplifying medium, optically coupled to the first, amplifies the first level signal to a second level amplified, injection pulsed signal. The duty cycle of the injection pulsed optical signal is synchronized with the first and second pulsed pump signals with the first pulsed pump signal having a different duration in the duty cycle than the second pulsed pump signal.
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