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    • 1. 发明申请
    • ILLUMINATION MODULE
    • 照明模块
    • WO2008027492A2
    • 2008-03-06
    • PCT/US2007/019106
    • 2007-08-29
    • COLLINEAR CORPORATIONMILLER, Gregory, D.
    • MILLER, Gregory, D.
    • G02F1/35
    • G02F1/3532G02B6/0026G02B6/0068G02F1/37G02F1/39H04N9/3158H04N9/3161
    • An illumination module may provide light in a plurality of colors including Red-Green-Blue (RGB) light and/or white light. The light from the illumination module may be directed to a 3LCD system, a Digital Light Processing (DLP®) system, a Liquid Crystal on Silicon (LCoS) system, or other micro-display or micro-projection systems. In one embodiment the illumination module includes a laser configured to produce an optical beam at a first wavelength, a planar lightwave circuit coupled to the laser and configured to guide the optical beam, and a waveguide optical frequency converter coupled to the planar lightwave circuit and configured to receive the optical beam at the first wavelength, convert the optical beam at the first wavelength into an output optical beam at a second wavelength, and may provide optically coupled feedback which is nonlinearly dependent on a power of the optical beam at the first wavelength to the laser.
    • 照明模块可以提供包括红 - 绿 - 蓝(RGB)光和/或白光的多种颜色的光。 来自照明模块的光可以被引导到3LCD系统,数字光处理(DLP)系统,硅晶体(LCoS)系统或其他微显示或微投影系统。 在一个实施例中,照明模块包括被配置为产生第一波长的光束的激光器,耦合到激光器并被配置为引导光束的平面光波电路,以及耦合到平面光波电路的波导光频变换器, 为了接收第一波长的光束,将第一波长处的光束转换为第二波长的输出光束,并且可以提供光耦合反馈,其非线性地取决于第一波长的光束的功率 激光。
    • 2. 发明申请
    • OPTICAL POWER COMBINING FOR OPTICAL FREQUENCY CONVERSION HAVING NONLINEAR FEEDBACK
    • 具有非线性反馈的光学频率转换的光功率组合
    • WO2006130394A2
    • 2006-12-07
    • PCT/US2006/019986
    • 2006-05-22
    • COLLINEAR CORPORATIONMILLER, Gregory, D.
    • MILLER, Gregory, D.
    • H04J14/02G02F1/3501G02F1/37G02F2001/3503
    • Wavelength combining for nonlinear frequency conversion is provided having nonlinear feedback to the sources being combined. Power that is fed back to the sources is obtained from within a wavelength conversion device. Therefore, the feedback power to a source has a nonlinear dependence on input power provided by that source to the wavelength conversion device. Such nonlinear feedback can advantageously reduce the sensitivity of the output power from the wavelength conversion device to variations in the nonlinear coefficients of the conversion device. The reason for this reduced sensitivity is that in preferred embodiments, the feedback power increases if a nonlinear coefficient decreases. This increased feedback tends to increase the power supplied to the conversion device, thus mitigating the effect of the reduced nonlinear coefficient.
    • 提供了用于非线性频率转换的波长组合,其具有对被组合的源的非线性反馈。 从波长转换装置获得反馈到源的功率。 因此,到源的反馈功率对于由该源提供给波长转换器件的输入功率具有非线性依赖性。 这种非线性反馈可以有利地降低来自波长转换装置的输出功率对转换装置的非线性系数变化的灵敏度。 这种灵敏度降低的原因是在优选实施例中,如果非线性系数减小,则反馈功率增加。 这种增加的反馈倾向于增加提供给转换装置的功率,从而减轻减小的非线性系数的影响。
    • 3. 发明申请
    • DESIGN OF QUASI-PHASEMATCHED OPTICAL FREQUENCY CONVERTERS
    • 等离子体光电转换器的设计
    • WO2008027151A2
    • 2008-03-06
    • PCT/US2007/017270
    • 2007-07-31
    • COLLINEAR CORPORATIONMILLER, Gregory, D.
    • MILLER, Gregory, D.
    • G02F2/02
    • G02F1/3544G02F1/3558
    • Quasi-phasematching design to provide an approximation to a desired spectral amplitude response A(f) is provided. An initial phase response φ(f) corresponding to A(f) is generated. Preferably, d 2 φ(f) /df 2 is proportional to A 2 (f). Alternatively, φ(f) can be a polynomial in f. A function h(x) is computed such that h(x) and H(f) = A (f ) exp (iφ(f ) ) are a Fourier transform pair. A domain pattern function d(x) is computed by binarizing h(x) (i.e., approximating h(x) with a constant-amplitude approximation). In some cases, the response provided by this d(x) is sufficiently close to A(f) that no further design work is necessary. In other cases, the design can be iteratively improved by modifying φ(f) responsive to a difference between the desired response A(f) and the response provided by domain pattern d(x). Various approaches for binarization are provided. The availability of multiple binarization approaches is helpful for making design trades (e.g., in one example, fidelity to A(f) can be decreased to increase efficiency and to increase domain size).
    • 提供准相位设计以提供对期望的频谱幅度响应A(f)的近似。 产生对应于A(f)的初始相位响应f(f)。 f(f)/ df 2 2优选地与A 2(f)成比例。 或者,f(f)可以是f中的多项式。 计算函数h(x),使得h(x)和H(f)= A(f)exp(if(f))是傅里叶变换对。 通过将h(x)二值化(即,用恒定幅度近似逼近h(x))来计算域模式函数d(x)。 在某些情况下,由d(x)提供的响应足够接近A(f),不需要进一步的设计工作。 在其他情况下,可以通过响应于期望响应A(f)和域模式d(x)提供的响应之间的差异来修改f(f)来迭代地改进设计。 提供了各种二值化方法。 多种二值化方法的可用性有助于进行设计交易(例如,在一个示例中,可以降低对A(f)的保真度以提高效率并增加域大小)。
    • 5. 发明申请
    • DESIGN OF QUASI-PHASEMATCHED OPTICAL FREQUENCY CONVERTERS
    • 等离子体光电转换器的设计
    • WO2007067211A1
    • 2007-06-14
    • PCT/US2006/020689
    • 2006-05-24
    • COLLINEAR CORPORATIONMILLER, Gregory, D.
    • MILLER, Gregory, D.
    • G02F1/35
    • G02F1/3544G02F1/3558G02F2001/3548
    • Quasi-phasematching design to provide an approximation to a desired spectral amplitude response A(f) is provided. An initial phase response φ(f) corresponding to A(f) is generated. Preferably, d2φ(f)/df2 is proportional to A2(f) . A function h(x) is computed such that h(x) and H(f) = A (f ) exp (iφ (f ) ) are a Fourier transform pair. A domain pattern function d(x) is computed by binarizing h(x) (i.e., approximating h(x) with a constant-amplitude approximation) . In some cases, the response provided by this d(x) is sufficiently close to A(f) that no further design work is necessary. In other cases, the design can be iteratively improved by modifying φ(f) responsive to a difference between the desired response A(f) and the response provided by domain pattern d(x) . Various approaches for binarization are provided. The availability of multiple binarization approaches is helpful for making design trades (e.g., in one example, fidelity to A(f) can be decreased to increase efficiency and to increase domain size) .
    • 提供准比对设计以提供对期望的光谱振幅响应A(f)的近似。 产生对应于A(f)的初始相位响应f(f)。 优选地,d2f(f)/ df2与A2(f)成比例。 计算函数h(x),使得h(x)和H(f)= A(f)exp(if(f))是傅里叶变换对。 通过将h(x)二值化(即,用恒定幅度近似逼近h(x))来计算域模式函数d(x)。 在某些情况下,由d(x)提供的响应足够接近A(f),不需要进一步的设计工作。 在其他情况下,可以通过响应于期望响应A(f)和域模式d(x)提供的响应之间的差异来修改f(f)来迭代地改进设计。 提供了各种二值化方法。 多种二值化方法的可用性有助于进行设计交易(例如,在一个示例中,可以降低对A(f)的保真度以提高效率并增加域大小)。