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    • 32. 发明申请
    • Method for Having Laser Light Source in Standby Status
    • 激光光源处于待机状态的方法
    • US20090110012A1
    • 2009-04-30
    • US11992321
    • 2006-10-27
    • Akira TokuhisaYasutoshi Takada
    • Akira TokuhisaYasutoshi Takada
    • H01S3/106
    • H01S3/2383G02F1/3532G02F1/3534G02F2001/354H01S3/005H01S3/06754H01S3/10007H01S3/10015H01S5/0612
    • When the laser light source is caused to standby, the temperatures of semiconductor laser 1 and semiconductor laser 9 are changed by approximately 3° C. from the temperature when the laser light source is always being used. With a temperature change of approximately 3° C., the wavelengths of the laser light generated by semiconductor lasers 1 and 9 change approximately 0.3 nm. This change hardly has any effect at all on optical fiber amplifier 2 and optical fiber amplifier 10, but the conversion efficiencies at the respective wavelength conversion elements of the wavelength conversion optical system change, and, particularly, deep ultraviolet light is hardly generated at all any longer. Therefore, even while the laser light has been made incident to the wavelength conversion optical system, there is no longer damaging of the wavelength conversion elements. Therefore, it is possible to provide a laser light source standby method that is able to shorten the start up time of the laser light source.
    • 当使激光源处于待机状态时,半导体激光器1和半导体激光器9的温度从始终使用激光光源的温度改变约3℃。 在大约3℃的温度变化下,由半导体激光器1和9产生的激光的波长变化大约为0.3nm。 这种变化对光纤放大器2和光纤放大器10几乎没有任何影响,但波长转换光学系统的各波长转换元件的转换效率发生变化,特别是几乎不产生深紫外光 更长 因此,即使当激光入射到波长转换光学系统时,也不再有波长转换元件的损坏。 因此,可以提供能够缩短激光源的启动时间的激光源备用方法。
    • 33. 发明授权
    • Fiber laser red-green-blue (RGB) light source
    • 光纤激光红 - 绿 - 蓝(RGB)光源
    • US07489437B1
    • 2009-02-10
    • US11999322
    • 2007-12-05
    • Anthony Sebastian Bauco
    • Anthony Sebastian Bauco
    • G02F2/02H01S3/10
    • G02F1/3532G02F1/3558H01S3/0092H01S3/06754H01S3/2308
    • An RGB light source that uses an optical fiber laser to generate a near-infrared (NIR) output light beam, and a wavelength conversion system that receives the output NIR light beam and forms therefrom red, green and blue light beams. The fiber laser includes multiple stages, wherein the first stage includes a solid-state laser to generate an initial NIR light beam. One or more subsequent stages operate to amplify the NIR light beam to form a relatively high-average-power output NIR light beam. Only light from the fiber laser is used to generate the red, green and blue-wavelength output light beams. The wavelength conversion system includes three or fewer non-linear optical (NLO) units. A color display that utilizes the RGB light source is also disclosed.
    • 使用光纤激光器产生近红外(NIR)输出光束的RGB光源和接收输出NIR光束并由其形成红,绿和蓝光束的波长转换系统。 光纤激光器包括多个阶段,其中第一阶段包括用于产生初始NIR光束的固态激光器。 一个或多个后续阶段用于放大NIR光束以形成相对较高平均功率的输出NIR光束。 仅使用来自光纤激光器的光来产生红色,绿色和蓝色波长的输出光束。 波长转换系统包括三个或更少的非线性光学(NLO)单元。 还公开了利用RGB光源的彩色显示器。
    • 35. 发明授权
    • Optical wavelength converter and image forming apparatus using the same
    • 光波长转换器及使用其的成像装置
    • US07330490B2
    • 2008-02-12
    • US11474998
    • 2006-06-27
    • Yukio FurukawaTakashi Yuasa
    • Yukio FurukawaTakashi Yuasa
    • H01S3/10H01S3/00
    • H01S5/06256G02F1/3532G02F1/3775G02F2202/20H01S5/005H01S5/0092H01S5/06253H01S5/0683H04N9/3129
    • An optical wavelength converter includes a distributed Bragg reflector laser having an active area, a phase area, and a distributed Bragg reflector area in which a distributed Bragg reflector is formed; an optical wavelength conversion device for receiving fundamental wave light emitted from said distributed Bragg reflector laser and outputting second harmonic wave light of the fundamental wave light; and a control circuit for controlling an emission wavelength and a light output by controlling an injection current to be injected into the distributed Bragg reflector laser for each period. The control circuit controls the injection current to be injected into the distributed Bragg reflector laser while satisfying a condition for controlling a light output mode of the distributed Bragg reflector laser so that light energy to be inputted into the optical wavelength conversion device in each period is constant and satisfying a condition for injecting a current into each of an active area, a phase area, and a distributed Bragg reflector area in each of periods in a mode of constant amount of generated heat so that an injection current-emission wavelength characteristic in the distributed Bragg reflector area is constant.
    • 光波长转换器包括分布布拉格反射激光器,其具有有源区域,相位区域和分布式布拉格反射器区域,其中形成分布式布拉格反射器; 光波长转换装置,用于接收从所述分布布拉格反射激光器发出的基波光并输出基波光的二次谐波; 以及控制电路,用于通过控制每个时间段内要喷射到分布式布拉格反射器激光器中的喷射电流来控制发射波长和光输出。 控制电路控制喷射到分布式布拉格反射体激光器中的注入电流,同时满足用于控制分布布拉格反射器激光器的光输出模式的条件,使得在每个周期中输入到光波长转换装置的光能是恒定的 并且满足用于以恒定量的发生热量的模式在每个周期中的有源区域,相位区域和分布式布拉格反射器区域中的每一个中注入电流的条件,使得分布式发射器件中的注入电流 - 发射波长特性 布拉格反射器面积是恒定的。
    • 37. 发明申请
    • Intracavity frequency-tripled CW laser
    • 腔内频率三倍CW激光
    • US20050078718A1
    • 2005-04-14
    • US10831991
    • 2004-04-26
    • Luis SpinelliAndrea Caprara
    • Luis SpinelliAndrea Caprara
    • G02F1/35G02F1/37H01S3/108H01S3/109H01S5/04H01S5/14H01S3/10
    • H01S3/109G02F1/3532G02F1/3534G02F1/37G02F2001/354H01S3/1083H01S5/041H01S5/14
    • A method of intracavity frequency conversion in a CW laser includes causing fundamental radiation to circulate in a laser resonator. The fundamental radiation makes a first pass through an optically nonlinear crystal where a fraction of the fundamental radiation generates second-harmonic radiation in a forward pass through the crystal. The residual fundamental radiation and the second-harmonic radiation are then sum-frequency mixed in forward and reverse passes through an optically nonlinear crystal such that a fraction of each is converted to third-harmonic radiation. The residual second-harmonic radiation and fundamental radiation from the sum-frequency mixing then make a reverse pass through the second-harmonic generating crystal where the second-harmonic radiation is converted back to fundamental radiation. The third harmonic radiation can be delivered from the resonator as output radiation, or can be used to pump another optically nonlinear crystal in an optical parametric oscillator. Second-harmonic radiation can also be used to pump an optical parametric oscillator.
    • 在CW激光器中的腔内频率转换的方法包括使基本辐射在激光谐振器中循环。 基本辐射首先通过光学非线性晶体,其中基波的一部分在向前通过晶体时产生二次谐波辐射。 剩余的基本辐射和二次谐波辐射然后在正向和反向通过光学非线性晶体进行和频混合,使得其中的一部分转换成三次谐波辐射。 来自和频混合的残余二次谐波辐射和基波辐射反向通过二次谐波产生晶体,二次谐波辐射被转换回基本辐射。 三次谐波辐射可以作为输出辐射从谐振器输出,或者可以用于在光参量振荡器中泵浦另一光学非线性晶体。 二次谐波辐射也可用于泵浦光参量振荡器。
    • 39. 发明授权
    • Laser light source and image display based on quasi-phasematched nonlinear optical devices
    • 基于准非对称非线性光学器件的激光光源和图像显示
    • US06480325B1
    • 2002-11-12
    • US09578994
    • 2000-05-25
    • Robert BatchkoRobert ByerUwe Kurt BaderJan-Peter Meyn
    • Robert BatchkoRobert ByerUwe Kurt BaderJan-Peter Meyn
    • G02F139
    • G02F1/3532G02F1/3534G02F1/37G02F1/39H01S3/109
    • An apparatus for generating three or more optical signals. The apparatus generally comprises a coherent source, an optical parametric generation device and a sum frequency generator. The coherent source generates a first optical signal having a first free-space wavelength. The optical parametric generation device interacts the first optical signal to produce an idler signal and a second optical signal having a second free-space wavelength while transmitting a portion of the first optical signal to the sum frequency generator. The sum frequency generator non-linearly combines part of the second portion of the first optical signal with the idler signal to produce a third optical signal characterized by a third free-space wavelength. The first, second, and third optical signals may comprise collinear red green and blue beams that may be modulated and scanned to produce an image. Furthermore, the optical parametric generation device and the sum frequency generator may be fabricated as a single monolithic device.
    • 一种用于产生三个或更多个光信号的装置。 该装置通常包括相干源,光参量发生装置和和频发生器。 相干源产生具有第一自由空间波长的第一光信号。 光参量发生装置将第一光信号相互作用以产生空载信号和具有第二自由空间波长的第二光信号,同时将第一光信号的一部分传送到和频发生器。 和频率发生器将第一光信号的第二部分的一部分与惰轮信号非线性组合,以产生由第三自由空间波长表征的第三光信号。 第一,第二和第三光信号可以包括可以调制和扫描以产生图像的共线红绿和蓝光束。 此外,光学参数产生装置和和频发生器可以制造为单个单片装置。
    • 40. 发明申请
    • Optical frequency synthesizing structure
    • 光频合成结构
    • US20020118439A1
    • 2002-08-29
    • US09991460
    • 2001-11-16
    • Lightbit Corporation
    • Robert G. Batchko
    • G02F001/35G02F001/365G02F001/37
    • G02F1/3532G02F1/3534G02F1/37
    • An Optical Frequency Shifter (Shifter) enables all-optical frequency translation to be imparted on a data-carrying Input Optical Signal (Input Signal). The Shifter includes a first difference-frequency-mixer for achieving quasi-phase-matching between a first pump channel, the Input Signal and an Intermediate Signal. A second difference-frequency-mixer is employed for achieving quasi-phase-matching between a second pump signal, the intermediate signal and a converted signal. A frequency shift discriminates the input signal from the output signal wherein the value of the frequency shift is proportional to the difference in frequencies of the first pump signal and the second pump signal. In this fashion, the value of the frequency shift in independent of the frequency of the input signal. A multiple of Input Signals may be coupled into the Shifter and may be simultaneously shifted to a multiple of respective converted signals wherein the frequency shift has a constant value and discriminates each input signal from each respective converted signal. The Shifter may employ cascaded second harmonic generation (SHG) and difference frequency generation (DFG) thereby enabling the use of pump sources having frequencies generally in the proximity of the frequencies of the Input Signal and Converted Signal. In this fashion, first and second sub-harmonic pump signals may be quasi-phase-matched by the Shifter for achieving SHG thereby generating said first and second pump signals. A plurality of Shifters may be coupled to each other, thereby enabling a plurality of frequency translations to be imparted on the Input Signals.
    • 光学移频器(Shifter)使全光频率转换能够在数据承载输入光信号(输入信号)上传递。 移位器包括用于实现第一泵通道,输入信号和中间信号之间的准相位匹配的第一差分 - 混频器。 第二差分混频器用于实现第二泵浦信号,中间信号和转换信号之间的准相位匹配。 频移对来自输出信号的输入信号进行识别,其中频移的值与第一泵浦信号和第二泵浦信号的频率差成比例。 以这种方式,频率的值与输入信号的频率无关。 输入信号的多个可以耦合到移位器中,并且可以同时移位到相应转换信号的倍数,其中频移具有恒定值并且从每个相应的转换信号中识别每个输入信号。 移相器可以采用级联二次谐波发生(SHG)和差频产生(DFG),从而使得能够使用具有通常在输入信号和转换信号的频率附近的频率的泵浦源。 以这种方式,第一和第二次谐波泵浦信号可以被移位器准相位匹配以实现SHG,从而产生所述第一和第二泵浦信号。 多个移位器可以彼此耦合,从而使得能够在输入信号上施加多个频率转换。