Systems and methods for speckle reduction
    121.
    发明申请
    Systems and methods for speckle reduction 有权
    减少斑点的系统和方法

    公开(公告)号:US20090244684A1

    公开(公告)日:2009-10-01

    申请号:US12079613

    申请日:2008-03-27

    Inventor: Jacques Gollier

    CPC classification number: G02B27/48 G02B13/22

    Abstract: A laser projection system including a system controller, a visible light source, and a light disrupting element is provided. The visible light source includes at least one laser and the laser projection system is programmed to scan a scanned optical signal of the visible light source across a plurality of image pixels. The scanned optical signal comprises a low spatial frequency beam and a high spatial frequency beam, and the low spatial frequency beam generates a low spatial frequency image having spatial frequencies below a spatial frequency threshold, the high spatial frequency beam generates a high spatial frequency image having spatial frequencies that are above the spatial frequency threshold, and the scanned laser image is a sum of the high spatial frequency image and the low spatial frequency image. The low spatial frequency beam is altered by an out of focus light disrupting element.

    Abstract translation: 提供了包括系统控制器,可见光源和光干扰元件的激光投影系统。 可见光源包括至少一个激光器,激光投影系统被编程为跨越多个图像像素扫描可见光源的扫描光信号。 扫描的光信号包括低空间频率波束和高空间频率波束,并且低空间频率波束产生具有低于空间频率阈值的空间频率的低空间频率图像,高空间频率波束产生具有 空间频率高于空间频率阈值,扫描的激光图像是高空间频率图像和低空间频率图像的和。 低空间频率光束被失焦的光干扰元件改变。

    Position sensitive detectors in wavelength monitoring

    公开(公告)号:US07576867B2

    公开(公告)日:2009-08-18

    申请号:US11880251

    申请日:2007-07-20

    Inventor: Jacques Gollier

    CPC classification number: G01J9/00

    Abstract: Particular embodiments of the present invention relate generally to wavelength monitoring in frequency doubling and other optical applications. According to one embodiment of the present invention, a system for monitoring the wavelength of a light source is provided. The system comprises a light directing section, an optical vector generator, and one or more position sensitive detectors. The optical vector generator comprises a grating coupled waveguide configured to exhibit a reflective or transmissive optical resonance effect in response to variable wavelength input light. The optical resonance effect comprises a wavelength-dependent output vector that is generated from a localized output vector area of the grating coupled waveguide in response to variable wavelength input light. The position of the localized output vector area along a dimension of the grating coupled waveguide varies with the wavelength of the variable wavelength input light. The position sensitive detector is positioned in the optical path of the wavelength-dependent output vector and is configured to facilitate generation of a signal indicative of the position of the localized output vector area along the dimension of the grating coupled waveguide. Additional embodiments are disclosed and claimed.

    Optical Packages and Methods for Aligning Optical Packages
    123.
    发明申请
    Optical Packages and Methods for Aligning Optical Packages 有权
    光学封装和对准光学封装的方法

    公开(公告)号:US20090190624A1

    公开(公告)日:2009-07-30

    申请号:US12200661

    申请日:2008-08-28

    Abstract: An optical package includes a semiconductor laser, a wavelength conversion device and a MEMS-actuated mirror oriented on a base module to form a folded optical pathway between an output of the semiconductor laser and an input of the wavelength conversion device. An optical assembly is located in a mechanical positioning device and the mechanical positioning device is disposed on the base module along the optical pathway such that the beam of the semiconductor laser passes through the optical assembly, is reflected by the MEMS-actuated mirror back through the optical assembly and into the waveguide portion of the wavelength conversion device. The MEMS-actuated mirror is operable to scan the beam of the semiconductor laser over the input of the wavelength conversion device. The optical assembly may be adjusted along the optical pathway with the mechanical positioning device to focus the beam into the waveguide portion of the wavelength conversion device.

    Abstract translation: 光学封装包括半导体激光器,波长转换器件和面向基底模块的MEMS致动镜,以在半导体激光器的输出端与波长转换器件的输入端之间形成折叠光路。 光学组件位于机械定位装置中,并且机械定位装置沿着光学路径设置在基座模块上,使得半导体激光器的光束通过光学组件,被MEMS致动的反射镜反射回通过 光学组件并进入波长转换装置的波导部分。 MEMS致动反射镜可操作以通过波长转换装置的输入来扫描半导体激光束的光束。 光学组件可以利用机械定位装置沿光学路径调节,以将光束聚焦到波长转换装置的波导部分中。

    Systems and methods for polarization modulation of an optical signal
    124.
    发明申请
    Systems and methods for polarization modulation of an optical signal 有权
    用于光信号偏振调制的系统和方法

    公开(公告)号:US20090168818A1

    公开(公告)日:2009-07-02

    申请号:US12072426

    申请日:2008-02-26

    CPC classification number: G02B27/283 H01S5/005 H01S5/0427 H01S5/06256

    Abstract: According to one embodiment of the present invention, a method of operating a laser source is provided. The laser source comprises a laser configured to generate an optical signal, and a polarization split and delay unit that is coupled to the optical signal. The polarization split and delay unit is configured to split the optical signal into a first and second orthogonally polarized component, create an optical path difference ΔL between the first and second orthogonally polarized components and combine the first and second orthogonally polarized components into a combined signal. The method comprises modulating the optical signal by applying a wavelength modulation signal to the laser such that the modulated optical signal comprises at least a first wavelength λ1 and a second wavelength λ2, wherein the first wavelength λ1 and the second wavelength λ2 are separated by a wavelength difference Δλ. The wavelength difference Δλ and the optical path difference ΔL are such that the first and second orthogonally polarized components oscillate back and forth from an in-phase state to an out of phase state. Additional embodiments are also disclosed and claimed.

    Abstract translation: 根据本发明的一个实施例,提供了一种操作激光源的方法。 激光源包括被配置为产生光信号的激光器,以及耦合到光信号的偏振分束和延迟单元。 偏振分离和延迟单元被配置为将光信号分裂成第一和第二正交偏振分量,在第一和第二正交极化分量之间产生光程差ΔL,并将第一和第二正交极化分量组合成组合信号。 该方法包括通过向激光器施加波长调制信号来调制光信号,使得经调制的光信号至少包括第一波长λ1和第二波长λ2,其中第一波长λ1和第二波长λ2被波长 差异Deltalambda 波长差Deltalambda和光程差ΔL使得第一和第二正交极化分量从同相状态到异相状态前后振荡。 还公开并要求保护附加实施例。

    SINGLE MODE (SM) FIBER OPTICAL READER SYSTEM AND METHOD FOR INTERROGATING RESONANT WAVEGUIDE-GRATING SENSOR (S)
    125.
    发明申请
    SINGLE MODE (SM) FIBER OPTICAL READER SYSTEM AND METHOD FOR INTERROGATING RESONANT WAVEGUIDE-GRATING SENSOR (S) 有权
    单模(SM)光纤读取器系统和谐波波导光栅传感器的混合方法(S)

    公开(公告)号:US20090162003A1

    公开(公告)日:2009-06-25

    申请号:US12362784

    申请日:2009-01-30

    CPC classification number: G01N21/7743

    Abstract: An optical reader system is described herein which has a single mode (SM) optical fiber launch/receive system that uses one or more SM optical fibers to interrogate a biosensor and does not use multimode (MM) optical fibers to interrogate the biosensor. The use of the SM optical fiber launch/receive system effectively reduces angular sensitivity, reduces unwanted system reflections, improves overall angular tolerance, and improves resonant peak reflectivity and resonant peak width. Two specific embodiments of the SM optical fiber launch/receive system are described herein which include: (1) a dual fiber collimator launch/receive system; and (2) a single fiber launch/receive system that interrogates the biosensor at a normal incidence.

    Abstract translation: 本文描述了一种光学读取器系统,其具有使用一个或多个SM光纤询问生物传感器并且不使用多模(MM)光纤来询问生物传感器的单模(SM)光纤发射/接收系统。 使用SM光纤发射/接收系统有效地降低了角度灵敏度,减少了不必要的系统反射,提高了整体角度公差,并且提高了谐振峰值反射率和谐振峰值宽度。 本文描述了SM光纤发射/接收系统的两个具体实施例,其包括:(1)双光纤准直器发射/接收系统; 和(2)以正常入射方式询问生物传感器的单纤维发射/接收系统。

    Wavelength control in phase region of semiconductor lasers
    126.
    发明申请
    Wavelength control in phase region of semiconductor lasers 失效
    半导体激光器相位波长控制

    公开(公告)号:US20090129414A1

    公开(公告)日:2009-05-21

    申请号:US11986139

    申请日:2007-11-20

    Inventor: Jacques Gollier

    Abstract: Particular embodiments of the present invention relate generally to semiconductor lasers and laser scanning systems and, more particularly, to schemes for controlling semiconductor lasers. According to one embodiment of the present invention, a laser is configured for optical emission of encoded data. At least one parameter of the optical emission is a function of a drive current IGAIN injected into the gain section of the semiconductor laser and one or more additional drive currents I/VPHASE, I/VDBR. Mode selection in the semiconductor laser is altered by applying a phase shifting signal I/VΦ to the phase section that is synched with a wavelength recovery portions in drive current IGAIN such that a plurality of cavity modes are shifted by one half of the free spectral range at each wavelength recovery portion. In this manner, patterned variations in the wavelength or intensity profile of the laser can be disrupted to disguise patterned flaws that would otherwise be readily noticeable in the output of the laser.

    Abstract translation: 本发明的具体实施方案一般涉及半导体激光器和激光扫描系统,更具体地,涉及用于控制半导体激光器的方案。 根据本发明的一个实施例,激光器被配置用于光发射编码数据。 光发射的至少一个参数是注入到半导体激光器的增益部分中的驱动电流IGAIN和一个或多个附加驱动电流I / VPHASE,I / VDBR的函数。 通过将相移信号I / VPhi施加到与驱动电流IGAIN中的波长恢复部分同步的相位部分,使得多个空腔模式偏移自由光谱范围的一半来改变半导体激光器中的模式选择 在每个波长恢复部分。 以这种方式,可以破坏激光器的波长或强度分布的图案变化来伪装图案化的缺陷,否则在激光器的输出中将容易看出。

    Semiconductor light source module
    127.
    发明授权
    Semiconductor light source module 有权
    半导体光源模块

    公开(公告)号:US07511880B2

    公开(公告)日:2009-03-31

    申请号:US11545470

    申请日:2006-10-11

    Abstract: The present invention provides a semiconductor light source module including: a semiconductor light source for emitting a light flux with a predefined wavelength; a SHG element for converting an incident light flux entering onto an incident end surface of the SHG element into an outgoing light flux having a different wavelength from the incident light flux; a light converging optical system for converging a light flux emitted from the semiconductor light source onto the incident end surface of the SHG element; a light receiving element for receiving a part of a light flux emitted from the SHG element; and a drive device for driving an optical element in the light converging optical system based on a light flux received by the light receiving element.

    Abstract translation: 本发明提供一种半导体光源模块,包括:用于发射具有预定波长的光通量的半导体光源; 用于将入射到所述SHG元件的入射端面的入射光束转换成具有与入射光束不同的波长的出射光束的SHG元件; 聚光光学系统,用于将从半导体光源发射的光束会聚到SHG元件的入射端面上; 用于接收从SHG元件发射的光束的一部分的光接收元件; 以及驱动装置,用于基于由光接收元件接收的光通量来驱动聚光光学系统中的光学元件。

    Wavelength conversion devices and fabrication methods for the same
    128.
    发明授权
    Wavelength conversion devices and fabrication methods for the same 失效
    波长转换器件及其制造方法相同

    公开(公告)号:US07492507B1

    公开(公告)日:2009-02-17

    申请号:US12192397

    申请日:2008-08-15

    Inventor: Jacques Gollier

    CPC classification number: G02F1/3558 G02F2001/3548

    Abstract: Particular embodiments of the present invention relate generally to semiconductor lasers and wavelength conversion devices and, more particularly, to wavelength conversion devices and methods of fabrication thereof that reduce back reflections of light from the wavelength conversion device to the laser. According to one embodiment of the present invention, a wavelength conversion device comprising a nonlinear optical material is poled with domains comprising randomly varying domain widths defined by an ideal poling period ΛI plus or minus a disruption value. According to another embodiment, the wavelength conversion device comprises a plurality of sequentially positioned ideal poling domains and one or more non-ideal poling domains. The ideal poling domains comprise a domain width of the ideal poling period ΛI while the non-ideal poling domains comprise a domain width of the ideal poling period ΛI plus or minus a discontinuity value.

    Abstract translation: 本发明的具体实施方案一般涉及半导体激光器和波长转换器件,更具体地,涉及减少从波长转换器件到激光器的光的反射反射的波长转换器件及其制造方法。 根据本发明的一个实施例,包括非线性光学材料的波长转换装置用包括由理想极化周期Lambda加上或者减去破坏值所限定的随机变化的畴宽度的域极化。 根据另一个实施例,波长转换装置包括多个顺序定位的理想极化域和一个或多个非理想极化域。 理想极化域包括理想极化周期Lambda的域宽度,而非理想极化域包括理想极化周期LambdaI的域宽度加上或不连续值。

    Frequency modulation in the optical alignment of wavelength-converted laser sources
    129.
    发明申请
    Frequency modulation in the optical alignment of wavelength-converted laser sources 失效
    波长转换激光源的光学对准中的频率调制

    公开(公告)号:US20090022188A1

    公开(公告)日:2009-01-22

    申请号:US11880386

    申请日:2007-07-20

    CPC classification number: H01S5/0622 G02F1/377 G02F2001/3546 H01S5/0687

    Abstract: Methods of controlling semiconductor lasers are provided where the semiconductor laser generates a wavelength-modulated output beam λMOD that is directed towards the input face of a wavelength conversion device. The intensity of a wavelength-converted output λCONV of the device is monitored as the output beam of the laser is modulated and as the position of the modulated output beam λMOD on the input face of the wavelength conversion device is varied. A maximum value of the monitored intensity is correlated with optimum coordinates representing the position of the modulated output beam λMOD on the input face of the wavelength conversion device. The optical package is operated in the data projection mode by directing an intensity-modulated laser beam from the semiconductor laser to the wavelength conversion device using the optimum positional coordinates. Additional embodiments are disclosed and claimed. Laser controllers and projections systems are also provided.

    Abstract translation: 提供了控制半导体激光器的方法,其中半导体激光器产生指向波长转换器件的输入面的波长调制输出光束λMOD。 当激光器的输出光束被调制并且随着波长转换装置的输入面上调制的输出光束λMOD的位置变化时,监视器件的波长转换输出λCONV的强度。 所监视的强度的最大值与表示波长转换装置的输入面上调制的输出光束λMOD的位置的最佳坐标相关。 通过使用最佳位置坐标将来自半导体激光器的强度调制激光束引导到波长转换装置,以数据投影模式操作光学封装。 公开并要求保护附加实施例。 还提供激光控制器和投影系统。

    Intensity modulation in wavelength converting optical package
    130.
    发明申请
    Intensity modulation in wavelength converting optical package 失效
    波长转换光学封装中的强度调制

    公开(公告)号:US20090022183A1

    公开(公告)日:2009-01-22

    申请号:US11880289

    申请日:2007-07-20

    Inventor: Jacques Gollier

    Abstract: Particular embodiments of the present invention relate generally to methods of controlling an optical package comprising a semiconductor laser, a spectral filter, and a wavelength conversion device. The spectral filter and the wavelength conversion device collectively define a wavelength transfer function comprising a transmission bandwidth component attributable to the spectral filter and a conversion bandwidth component attributable to the wavelength conversion device. The transmission bandwidth component of the wavelength transfer function is less than one free spectral range of the semiconductor laser. The method comprises directing the native laser output through the spectral filter and the wavelength conversion device and tuning the semiconductor laser to modulate the intensity of a wavelength-converted laser output of the optical package by shifting the native wavelength spectrum by less than one free spectral range of the semiconductor laser. Additional embodiments are disclosed and claimed.

    Abstract translation: 本发明的具体实施方案一般涉及控制包括半导体激光器,光谱滤波器和波长转换装置的光学封装的方法。 光谱滤波器和波长转换装置共同定义了包括归因于频谱滤波器的传输带宽分量和归因于波长转换装置的转换带宽分量的波长传递函数。 波长传递函数的传输带宽分量小于半导体激光器的一个自由光谱范围。 该方法包括通过频谱滤波器和波长转换装置引导天然激光输出,并调谐半导体激光器,以通过将天然波长光谱移位小于一个自由光谱范围来调制光学封装的波长转换的激光输出的强度 的半导体激光器。 公开并要求保护附加实施例。

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