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公开(公告)号：US06680956B2
公开(公告)日：2004-01-20
申请号：US10076794
申请日：2002-02-13
IPC分类号： H01S310
CPC分类号： H01S5/183 , G02B6/124 , G02B2006/12107 , G02F2001/354 , G02F2001/3546 , H01S3/0675 , H01S5/0092 , H01S5/041 , H01S5/146 , H01S2301/04
摘要： Methods and devices are provided for converting a fundamental wavelength of a fundamental beam generated by a surface-emitting diode laser having a first resonating cavity. According to some embodiments, a first nonlinear crystal disposed in a second resonating cavity external to first resonating cavity converts the fundamental beam to a first output beam having a first output wavelength different from the fundamental wavelength. Some embodiments include a second nonlinear crystal, which may be disposed in the second resonating cavity or in a third resonating cavity, for producing a second output beam having a second output wavelength different from the first output wavelength. In some such embodiments, the second nonlinear crystal converts the wavelength of the first output beam to produce the second output beam. In some embodiments, the second nonlinear crystal interacts with the first output beam and an infrared beam from another laser device to produce the second output beam.
摘要翻译： 提供了用于转换由具有第一谐振腔的表面发射二极管激光器产生的基波束的基波长的方法和装置。 根据一些实施例，布置在第一谐振腔外部的第二谐振腔中的第一非线性晶体将基波束转换成具有不同于基波的第一输出波长的第一输出光束。 一些实施例包括可以设置在第二谐振腔或第三谐振腔中的第二非线性晶体，用于产生具有不同于第一输出波长的第二输出波长的第二输出光束。 在一些这样的实施例中，第二非线性晶体转换第一输出光束的波长以产生第二输出光束。 在一些实施例中，第二非线性晶体与第一输出光束和来自另一激光装置的红外光束相互作用以产生第二输出光束。
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公开(公告)号：US06741620B2
公开(公告)日：2004-05-25
申请号：US10076696
申请日：2002-02-12
IPC分类号： H01S310
CPC分类号： G02F1/353 , G02B6/02123 , G02B6/124 , G02B2006/12107 , G02F1/37 , G02F2001/3507 , G02F2001/354 , G02F2201/16 , H01S3/0675 , H01S3/109 , H01S3/117 , H01S5/146
摘要： Efficient devices and methods for producing ultraviolet light are provided. One such device includes a diode-pumped 946 nanometer solid state laser, a first nonlinear crystal for generating blue light at approximately 473 nanometers, and a second nonlinear crystal for doubling the frequency of the blue light to produce a fourth harmonic beam of ultraviolet light at approximately 236.5 nanometers. In some embodiments, the second nonlinear crystal is a cooled CLBO crystal angle-tuned for non-critical phase-matching to provide high conversion efficiency. Some embodiments include a second laser which emits a fundamental beam having a wavelength of more than one micron and a third nonlinear crystal for sum-frequency mixing the fundamental beam and the fourth harmonic beam to output an ultraviolet beam having a wavelength of less than 200 nanometers.
摘要翻译： 提供了用于产生紫外光的有效装置和方法。 一种这样的装置包括二极管泵浦的946纳米固态激光器，用于产生大约473纳米的蓝光的第一非线性晶体和用于使蓝光的频率加倍以产生紫外光的第四谐波光束的第二非线性晶体 约236.5纳米。 在一些实施例中，第二非线性晶体是针对非关键相位匹配进行角度调节的冷却CLBO晶体，以提供高转换效率。 一些实施例包括发射波长大于1微米的基波束的第二激光器和用于对基波束和第四谐波波束进行和频混频以输出波长小于200纳米的紫外线的第三非线性晶体 。
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公开(公告)号：US4998255A
公开(公告)日：1991-03-05
申请号：US420045
申请日：1989-10-11
CPC分类号： G02F1/21 , G02F1/03 , G02F2001/212
摘要： Apparatus and method for modulating the phase or the amplitude of a monochromatic light beam, the apparatus including in one embodiment a Mach-Zehnder interferometer that consists of two beam splitters or beam combiners, a fully reflective mirror and an electro-optical crystal for modulation of one of two beam components. The electro-optical crystal serves as an optical resonator for the portion of the light beam admitted into the crystal material, using total internal reflection of the light beam from two or more of the crystal surfaces. The crystal has a high finesse so that a relatively small change in voltage applied across the crystal produces a large (.apprxeq.180.degree.) change in the external phase shift associated with the modulated component of the light beam. The modulated and unmodulated light beam components may be recombined for purposes of communication of information, using the mutual extinction of the two beam components when the optical phase shift between the two beam components is approximately 180.degree.. Transverse or longitudinal electro-optical materials can be used for the crystal, and the driving voltages required are less than 50 volts in some configurations. Communications at frequency up to and beyond 1 GHz. are possible.
摘要翻译： 用于调制单色光束的相位或幅度的装置和方法，该装置在一个实施例中包括由两个分束器或光束组合器组成的马赫 - 曾德干涉仪，全反射镜和用于调制的光电晶体 梁组件之一。 电光晶体用作入射到晶体材料中的部分光束的光学谐振器，使用来自两个或多个晶体表面的光束的全内反射。 晶体具有高的精细度，使得在晶体上施加的相对较小的电压变化产生与光束的调制分量相关联的外部相移的大的（约为180°）的变化。 当两个光束分量之间的光学相移大约为180°时，可以使用两个光束分量的相互消光来将调制和未调制的光束分量重新组合以用于信息的通信。 横向或纵向电光材料可用于晶体，并且在一些配置中所需的驱动电压小于50伏特。 频率高达1 GHz以上的通信。 是可能的
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4.发明授权Ultra-narrow bandwidth optical thin film interference coatings for single wavelength lasers 失效用于单波长激光器的超窄带宽光学薄膜干涉涂层
公开(公告)号：US4615034A
公开(公告)日：1986-09-30
申请号：US595296
申请日：1984-03-30
CPC分类号： H01S3/08059
摘要： A wavelength selective mirror provides single wavelength operation of a gas laser. In a specific embodiment an output coupler optical interference coating allows oscillation of the 488.0 nanometer line of the Argon ion laser blue/green spectrum while suppressing all other lines in that spectrum, particularly adjacent lines at 476.5 nanometers and 496.5 nanometers.
摘要翻译： 波长选择镜提供气体激光器的单波长操作。 在具体实施例中，输出耦合器光学干涉涂层允许氩离子激光蓝/绿光谱的488.0纳米线的振荡，同时抑制该光谱中的所有其它线，特别是在476.5纳米和496.5纳米的相邻线。
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公开(公告)号：US06832024B2
公开(公告)日：2004-12-14
申请号：US10042943
申请日：2001-11-19
申请人： David C. Gerstenberger , Mark S. Bowers , Dennis D. Lowenthal , Jason N. Farmer , Roy D. Mead , Charles I. Miyake
发明人： David C. Gerstenberger , Mark S. Bowers , Dennis D. Lowenthal , Jason N. Farmer , Roy D. Mead , Charles I. Miyake
IPC分类号： G02B634
CPC分类号： G02B6/02133 , G02B6/02138 , G02F1/353 , G02F1/37 , G02F2001/3507 , G02F2001/354 , G02F2201/16 , H01S3/117 , H01S5/0092 , H01S5/183
摘要： A wide variety of Fiber Bragg writing devices comprising solid state lasers are provided. The solid state lasers emit moderate peak-power output beams which are suitable for efficient production of fiber Bragg gratings without causing embrittlement of the optical waveguide. These solid state lasers generate fourth harmonic output beams with wavelengths of approximately 240 nm, in order to match the primary absorption peak in the ultraviolet range for a typical optical waveguide. Some of these solid state lasers comprise a fequency-doubling crystal and a CLBO crystal used in a non-critically phase-matched orientation as a frequency-quadrupling crystal. In such lasers, both the frequency-doubling crystal and frequency-quadrupling crystal are preferably engineered to minimize or eliminate beam “walkoff.”
摘要翻译： 提供了包括固态激光器的各种各样的光纤布拉格写入装置。 固态激光器发出中等的峰值功率输出光束，其适合于有效地生产光纤布拉格光栅而不会导致光波导的脆化。 这些固态激光器产生具有约240nm波长的第四谐波输出光束，以便匹配典型光波导的紫外范围内的初级吸收峰。 这些固体激光器中的一些包括倍频晶体和用于非临界相位匹配取向的CLBO晶体作为频率 - 四重晶体。 在这样的激光器中，倍频晶振和四频频率晶体优选地被设计成最小化或消除波束“走走”。
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6.发明授权公开(公告)号：US07471705B2
公开(公告)日：2008-12-30
申请号：US11558362
申请日：2006-11-09
IPC分类号： H01S3/10
CPC分类号： G02F1/3534 , G02F2001/3507
摘要： An apparatus and method applicable for generating ultraviolet laser light having a wavelength in the 200-nm range and/or 250-nm range; in some embodiments, using a single fiber laser pump source (in some embodiments, a pulsed source). In some embodiments, the invention provides methods of generating 250-nm or 200-nm photons using a mode-locked 1000-nm fiber laser and efficient 4th/5th harmonic frequency up-conversion. In other embodiments, the invention uses continuous wave (cw) single-frequency fiber lasers and external resonant frequency conversion. In still other embodiments, the invention uses cw single-frequency optically-pumped semiconductor lasers (OPSLs) and electrically driven vertical-cavity surface-emitting lasers (VCSELs) and externally resonant frequency conversion. All of these produce both of the ultraviolet wavelengths of interest
摘要翻译： 一种用于产生具有200nm范围和/或250nm范围内的波长的紫外激光的装置和方法; 在一些实施例中，使用单个光纤激光泵浦源（在一些实施例中，脉冲源）。 在一些实施例中，本发明提供使用锁模1000nm光纤激光器和高效的4/5次谐波上变频产生250nm或200nm光子的方法。 在其它实施例中，本发明使用连续波（cw）单频光纤激光器和外部谐振频率转换。 在其它实施例中，本发明使用cw单频光泵浦半导体激光器（OPSL）和电驱动垂直腔表面发射激光器（VCSEL）和外部谐振频率转换。 所有这些都产生感兴趣的紫外线波长
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