公开(公告)号：AT515818T

公开(公告)日：2011-07-15

申请号：AT08754307

申请日：2008-05-08

Applicant: CORNING INC

Inventor： GOLLIER JACQUES ,  HU MARTIN H ,  MIXON STEPHEN R ,  PIKULA DRAGAN ,  RICKETTS DANIEL O ,  ZAH CHUNG-EN

IPC: H01S5/0687 ,  H01S5/06 ,  H01S5/0683

Abstract: According to one embodiment of the present invention, a programmable light source comprises one or more semiconductor lasers, a wavelength conversion device, and a laser controller. The controller is programmed to operate the semiconductor laser using a modulated feedback control signal. The wavelength control signal is adjusted based on the results of a comparison of a detected intensity signal with a feedback signal to align the lasing wavelength with the conversion efficiency peak of the wavelength conversion device. Laser controllers and projections systems operating according to the control concepts of the present invention are also provided.

公开(公告)号：AT532241T

公开(公告)日：2011-11-15

申请号：AT08780264

申请日：2008-07-18

Applicant: CORNING INC

Inventor： ALMORIC ETIENNE ,  BHATIA VIKRAM ,  GOLLIER JACQUES ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

IPC: H01S5/06

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.

公开(公告)号：WO2012015652A3

公开(公告)日：2012-04-12

申请号：PCT/US2011044768

申请日：2011-07-21

Applicant: CORNING INC ,  PIECH GARRETT A ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

Inventor： PIECH GARRETT A ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

IPC: H01S5/00 ,  G02B6/42 ,  G02F1/377 ,  H01S5/0625 ,  H01S5/0687 ,  H01S5/40

CPC classification number: H01S5/0092 ,  G02B6/4225 ,  G02F1/353 ,  H01S5/0014 ,  H01S5/06256 ,  H01S5/0687 ,  H01S5/4093

Abstract: Start-up methods for frequency converted light sources and projector systems comprising frequency converted light sources are described herein. The start-up methods generally comprise modulating the frequency converted light source over three degrees of freedom (two spatial dimensions and one wavelength dimension). Specifically, fast oscillation of an axis of an adjustable optical component is performed simultaneously with fast oscillation of a wavelength of the semiconductor laser while a second axis of the adjustable optical component is incrementally stepped and the output intensity of the frequency converted light source is monitored for each step. This start-up method allows for three linear searches to be used to rapidly locate the appropriate control settings for the frequency converted light source.

Abstract translation: 本文描述了包括频率转换光源的变频光源和投影仪系统的启动方法。 启动方法通常包括在三个自由度（两个空间维度和一个波长尺寸）上调制频率转换的光源。 具体地，可调节光学部件的轴的快速振荡与半导体激光器的波长的快速振荡同时进行，同时可调光学部件的第二轴增量阶梯，并且监视频率转换光源的输出强度 每一步。 该启动方法允许使用三个线性搜索来快速定位频率转换光源的适当控制设置。

公开(公告)号：WO2010075017A3

公开(公告)日：2011-03-10

申请号：PCT/US2009067818

申请日：2009-12-14

Applicant: CORNING INC ,  GOLLIER JACQUES ,  PIECH GARRETT A ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

Inventor： GOLLIER JACQUES ,  PIECH GARRETT A ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

IPC: H01S5/0683 ,  H01S5/022 ,  H01S5/0687

CPC classification number: H01S5/0683 ,  G02F1/35 ,  G02F1/3775 ,  H01S5/0092 ,  H01S5/06256 ,  H01S5/0687

Abstract: According to one embodiment of the present invention, an optical package comprises one or more semiconductor lasers coupled to a wavelength conversion device with adaptive optics. The optical package also comprises a package controller programmed to operate the semiconductor laser and the adaptive optics based on modulated feedback control signals supplied to the wavelength selective section of the semiconductor laser and the adaptive optics. The wavelength control signal supplied to the wavelength selective section of the semiconductor laser may be adjusted based on the modulated wavelength feedback control signal such that the response parameter of the wavelength conversion device is optimized. Similarly, the position control signals supplied to the adaptive optics may be adjusted based on the modulated feedback position control signals such that the response parameter of the wavelength conversion device is optimized.

Abstract translation: 根据本发明的一个实施例，光学封装包括耦合到具有自适应光学器件的波长转换器件的一个或多个半导体激光器。 光学封装还包括编程为基于提供给半导体激光器和自适应光学器件的波长选择部分的调制反馈控制信号来操作半导体激光器和自适应光学器件的封装控制器。 提供给半导体激光器的波长选择部分的波长控制信号可以基于调制的波长反馈控制信号进行调整，使得波长转换器件的响应参数被优化。 类似地，可以基于调制的反馈位置控制信号来调整提供给自适应光学器件的位置控制信号，使得波长转换装置的响应参数被优化。

公开(公告)号：WO2012015652A9

公开(公告)日：2012-05-24

申请号：PCT/US2011044768

申请日：2011-07-21

Applicant: CORNING INC ,  PIECH GARRETT A ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

Inventor： PIECH GARRETT A ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

IPC: H01S5/00 ,  G02B6/42 ,  G02F1/377 ,  H01S5/0625 ,  H01S5/0687 ,  H01S5/40

CPC classification number: H01S5/0092 ,  G02B6/4225 ,  G02F1/353 ,  H01S5/0014 ,  H01S5/06256 ,  H01S5/0687 ,  H01S5/4093

Abstract: Start-up methods for frequency converted light sources and projector systems comprising frequency converted light sources are described herein. The start-up methods generally comprise modulating the frequency converted light source over three degrees of freedom (two spatial dimensions and one wavelength dimension). Specifically, fast oscillation of an axis of an adjustable optical component is performed simultaneously with fast oscillation of a wavelength of the semiconductor laser while a second axis of the adjustable optical component is incrementally stepped and the output intensity of the frequency converted light source is monitored for each step. This start-up method allows for three linear searches to be used to rapidly locate the appropriate control settings for the frequency converted light source.

Abstract translation: 本文描述了用于频率转换的光源和包括频率转换的光源的投影仪系统的启动方法。 启动方法通常包括在三个自由度（两个空间维度和一个波长维度）上调制频率转换的光源。 具体地说，在可调节光学部件的轴的快速振荡与半导体激光器的波长的快速振荡同时执行的同时，可调节光学部件的第二轴递增地步进并且监控频率转换光源的输出强度 每一步。 该启动方法允许使用三个线性搜索来快速定位频率转换光源的适当控制设置。

公开(公告)号：WO2010141555A3

公开(公告)日：2011-03-17

申请号：PCT/US2010037030

申请日：2010-06-02

Applicant: CORNING INC ,  BHATIA VIKRAM ,  PIKULA DRAGAN ,  RAJ MADHAN M

Inventor： BHATIA VIKRAM ,  PIKULA DRAGAN ,  RAJ MADHAN M

IPC: H01S3/10 ,  H01S3/13

CPC classification number: H01S5/0683 ,  G02F1/3775 ,  H01S5/0617 ,  H01S5/06256 ,  H01S5/0687 ,  H01S5/141

Abstract: A method for operating a frequency converted light source includes sweeping a wavelength control signal of a semiconductor laser over an initial signal range and measuring an optical power of an output beam emitted from a wavelength conversion device coupled to the semiconductor laser. The wavelength control signal of the semiconductor laser may then be swept over at least one truncated signal range and the optical power of the resulting output beam is measured. The at least one truncated signal range may be centered on a point corresponding to a maximum power of the output beam of the sweep of the wavelength control signal over the preceding signal range. An operational signal range for the wavelength control signal is determined such that a midpoint of the operational signal range corresponds to the maximum optical power of the resulting output beam of the sweep over the preceding signal range. Closed-loop feedback control of the wavelength control signal in the operational signal range may then be initiated.

Abstract translation: 一种用于操作频率转换的光源的方法包括在初始信号范围上扫描半导体激光器的波长控制信号，并测量从耦合到半导体激光器的波长转换器件发射的输出光束的光功率。 然后可以将半导体激光器的波长控制信号扫过至少一个截断的信号范围，并测量所得到的输出光束的光功率。 所述至少一个截断的信号范围可以在对应于在先前信号范围上的波长控制信号的扫描的输出波束的最大功率的点上居中。 确定用于波长控制信号的操作信号范围，使得操作信号范围的中点对应于在先前信号范围上的扫描的结果输出光束的最大光功率。 然后可以启动操作信号范围内的波长控制信号的闭环反馈控制。

公开(公告)号：WO2010048353A3

公开(公告)日：2010-07-29

申请号：PCT/US2009061571

申请日：2009-10-22

Applicant: CORNING INC ,  GOLLIER JACQUES ,  HU MARTIN H ,  LOEBER DAVID A ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

Inventor： GOLLIER JACQUES ,  HU MARTIN H ,  LOEBER DAVID A ,  PIKULA DRAGAN ,  RICKETTS DANIEL O

IPC: H01S5/06

CPC classification number: H01S5/06832 ,  H01S5/0092 ,  H01S5/06256 ,  H04N9/3129

Abstract: The present invention relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present invention, a method of correcting output power variations in a semiconductor laser is provided. According to the method, an output power feedback loop is utilized to generate optical intensity feedback signals representing actual output power of the laser source for discrete portions V1, Vi, Vj of the image signal. Error signals E1, Ei, Ej are generated representing the degree to which actual projected output power varies from a target projected output power for the discrete portions V1, Vi, Vj of the image signal. These error signals E1, Ei, Ej are utilized to apply corrected control signals G1', Gi', Gj' to the gain section of the semiconductor laser for projection of compatible discrete portions V1', Vi', Vj' of the image signal. According to another embodiment of the present invention, a system is provided for generating a projected laser image.

Abstract translation: 本发明一般涉及半导体激光器和激光投影系统。 根据本发明的一个实施例，提供了一种校正半导体激光器中的输出功率变化的方法。 根据该方法，利用输出功率反馈回路产生代表图像信号的离散部分V1，Vi，Vj的激光源的实际输出功率的光强度反馈信号。 产生表示实际投影输出功率相对于图像信号的离散部分V1，Vi，Vj的目标投影输出功率变化程度的误差信号E1，Ei，Ej。 利用这些误差信号E1，Ei，Ej将校正的控制信号G1'，Gi'，Gj'施加到半导体激光器的增益部分，用于投影图像信号的兼容离散部分V1'，Vi'，Vj'。 根据本发明的另一个实施例，提供了一种用于产生投影激光图像的系统。