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1. 发明授权

US06614818B1 Mode-hop-free single frequency solid state laser 有权
标题翻译：无跳频单频固态激光器
公开(公告)号：US06614818B1
公开(公告)日：2003-09-02
申请号：US09452938
申请日：1999-12-01
申请人： Jeffrey D. Kmetec , Mark A. Arbore , Manuel Martinez
发明人： Jeffrey D. Kmetec , Mark A. Arbore , Manuel Martinez
IPC分类号： H01S3098
CPC分类号： H01S3/08036 , H01S3/025 , H01S3/041 , H01S3/07 , H01S3/083 , H01S3/1028 , H01S3/1066 , H01S3/1083
摘要： An optical resonator has an axial mode frequency tuning rate with respect to temperature matching the peak gain frequency tuning rate, so that mode hops are eliminated. The resonator contains a composite cavity consisting of a gain medium and free space. Preferably, the resonator is a single-frequency solid state laser containing a solid state gain medium defining a physical path length Lg. The optical cavity is defined by a high reflector and output coupler surrounding the gain medium and defining a physical cavity path length Lo. The high reflector and output coupler are mounted on a substrate so that Lo is temperature insensitive. Preferably, the substrate is a thermally insensitive material having a negligible coefficient of thermal expansion; for example, it may be Invar™, Super-Invar™, ULE™ Glass, Zerodur™, and fused silica. Alternately, the substrate is a thermally isolated material that is temperature controlled and insulated from the gain medium. When Lo=Lg, the axial mode tuning rate has a greater magnitude than the peak gain tuning rate. However, Lo/Lg is fixed and designed so that the axial mode tuning rate is identical to the peak gain tuning rate. In particular, L o L g = 1 - n g - ν m ⁡ [ ( n g - 1 ) ⁢ 1 L g ⁢ ⅆ L g ⅆ T + ⅆ n g ⅆ T ⅆ ν g ⅆ T ] . The laser preferably contains means for ensuring single-frequency operation. For a ring laser, it may include a magnet and half-wave plate inside the cavity, coupled with rod-shaped gain material with anti-parallel Brewster facets. For a non-planar ring oscillator, the purpose of the half-wave plate is instead served by the non-planar path. Alternately, the resonator is an optical parametric oscillator.
摘要翻译：光谐振器具有相对于与峰值增益频率调谐率匹配的温度的轴向模式频率调谐速率，从而消除模式跳跃。谐振器包含由增益介质和自由空间组成的复合腔。优选地，谐振器是包含限定物理路径长度Lg的固态增益介质的单频固态激光器。光腔由围绕增益介质的高反射器和输出耦合器限定，并且限定物理空腔路径长度Lo。高反射器和输出耦合器安装在基板上，使得Lo温度不敏感。优选地，该基材是具有可忽略的热膨胀系数的热不敏感材料; 例如，它可以是Invar TM，Super-Invar TM，ULE TM玻璃，Zerodur TM和熔融二氧化硅。或者，衬底是热分离的材料，其被温度控制并与增益介质绝缘。当Lo = Lg时，轴向模式调谐率的幅度大于峰值增益调谐率。然而，Lo / Lg是固定和设计的，使得轴向模式调谐率与峰值增益调谐率相同。特别地，激光器优选地包含用于确保单频操作的装置。对于环形激光器，它可以包括在腔内的磁体和半波片，与具有反平行布鲁斯特面的棒状增益材料耦合。对于非平面环形振荡器，半波片的目的是由非平面路径提供。或者，谐振器是光学参量振荡器。

2. 发明授权

US07054061B2 Split-band amplifying apparatus using a depressed-profile fiber amplifier 失效
公开(公告)号：US07054061B2
公开(公告)日：2006-05-30
申请号：US10346960
申请日：2003-01-17
申请人： Mark A. Arbore , Jeffrey D. Kmetec , Yidong Zhou
发明人： Mark A. Arbore , Jeffrey D. Kmetec , Yidong Zhou
IPC分类号： H01S3/00 , G02B6/02
CPC分类号： H01S3/06758 , H01S3/06712 , H01S3/06716 , H01S3/0672 , H01S3/06729 , H01S3/06766 , H01S3/0677 , H01S3/06775 , H01S3/08045 , H01S3/1608 , H01S3/1616 , H01S2301/02
摘要： A split-band amplifying apparatus that has a first section for amplifying a long wavelength band of an optical signal and a second section equipped with a fiber amplifier for amplifying a short wavelength band of the optical signal. The fiber amplifier in the second section uses a short-pass fiber with a depressed cladding cross-section and core doped with an active material, e.g., Erbium, and pumped to a high relative inversion D. The split-band amplifying apparatus can be used to amplify signals whose short wavelength band includes at least a portion of the S-band and whose long wavelength band includes at least a portion of the C- and/or L-band.

3. 发明授权

US06701044B2 Solid state laser generating UV radiation for writing fiber bragg gratings 有权
标题翻译：固态激光产生UV辐射用于写入光纤布拉格光栅
公开(公告)号：US06701044B2
公开(公告)日：2004-03-02
申请号：US09927191
申请日：2001-08-10
申请人： Mark A. Arbore , Thomas J. Kane , Jeffrey D. Kmetec
发明人： Mark A. Arbore , Thomas J. Kane , Jeffrey D. Kmetec
IPC分类号： G02B634
CPC分类号： H01S3/113 , G02B6/02123 , H01S3/06754 , H01S3/06758 , H01S3/109 , H01S3/1618
摘要： A system employing a solid state light source for writing Bragg gratings in fibers and for other photolithographic applications. The solid state light source preferably has a passively Q-switched laser, a fiber amplifier and two or more nonlinear conversion elements for delivering a pulsed exposure beam at an exposure wavelength in the UV wavelength range. The exposure beam is generated in a single pass through the nonlinear elements, for example by cascaded second harmonic generation yielding the fourth harmonic. The system is effective at covering the UV wavelengths from 200 nm to 330 nm and particularly effective at producing an exposure wavelength between 240 and 250 nm at average power levels of 500 milliWatts and more within a photosensitive range of fiber cores in which Bragg gratings are to be written.
摘要翻译：一种采用固态光源的系统，用于在光纤和其他光刻应用中写入布拉格光栅。固体光源优选地具有被动Q开关激光器，光纤放大器和用于在UV波长范围内以曝光波长传送脉冲曝光束的两个或更多个非线性转换元件。曝光光束在单次通过非线性元件中产生，例如通过产生四次谐波的级联二次谐波产生。该系统在覆盖200nm至330nm的UV波长方面是有效的，并且特别有效地产生在250和250nm之间的平均功率水平为500毫瓦和更多的光纤芯的感光范围内的曝光波长，其中布拉格光栅将被写

4. 发明授权

US06665320B1 Wideband tunable laser sources with multiple gain elements 失效
标题翻译：具有多个增益元件的宽带可调激光源
公开(公告)号：US06665320B1
公开(公告)日：2003-12-16
申请号：US09772452
申请日：2001-01-29
申请人： Mark A. Arbore , Charles Harb , Jeffrey D. Kmetec
发明人： Mark A. Arbore , Charles Harb , Jeffrey D. Kmetec
IPC分类号： H01S330
CPC分类号： H01S5/4062 , H01S3/1068 , H01S3/107 , H01S5/1071 , H01S5/4087
摘要： This invention provides a tunable laser in which a plurality of gain elements (e.g., semiconductor diodes) with a plurality of gain spectra are optically coupled to a splitting-combining means (e.g., a wavelength router or fiber-optic coupler) in parallel, and the splitting-combining means is in optical communication with a wavelength-selecting means (e.g., a diffraction grating optically coupled to a movable mirror). The tunable laser of the present invention further comprising an optical fiber, optically coupling the splitting-combining means to the wavelength-selecting means. The use of a plurality of distinct gain spectra greatly enhances the tuning range of the tunable laser in the present invention. Moreover, by employing a long optical fiber as a substantial portion of an external cavity, the axial-mode spacing in the laser cavity is so small that mode-hops are effectively inconsequential for practical purposes, thereby rendering the wavelength tuning to be effectively continuous in the tunable laser of the present invention. Additionally, the availability of a plurality of the gain spectra can be further exploited, so as to provide additional capabilities in wavelength selecting/tuning. As such, the present invention provides a versatile and robust tunable laser in a simple and low cost construction.
摘要翻译：本发明提供了一种可调激光器，其中具有多个增益谱的多个增益元件（例如，半导体二极管）并行地光耦合到分离组合装置（例如，波长路由器或光纤耦合器），以及分离组合装置与波长选择装置（例如，光学耦合到可移动镜的衍射光栅）光通信。本发明的可调激光器还包括光纤，将分束组合装置光耦合到波长选择装置。使用多个不同的增益谱大大增强了本发明中可调激光器的调谐范围。此外，通过使用长光纤作为外部空腔的主要部分，激光腔中的轴向间隔非常小，使得跳跃对于实际目的而言实际上无关紧要，从而使波长调谐在本发明的可调激光器。此外，可以进一步利用多个增益谱的可用性，以便在波长选择/调谐中提供额外的能力。因此，本发明以简单且低成本的结构提供了通用且鲁棒的可调激光器。

5. 发明授权

US06456424B1 Noise suppression using pump-resonant optical parametric oscillation 失效
标题翻译：使用泵谐振光参量振荡进行噪声抑制
公开(公告)号：US06456424B1
公开(公告)日：2002-09-24
申请号：US09574585
申请日：2000-05-17
申请人： Mark A. Arbore , Jeffrey D. Kmetec
发明人： Mark A. Arbore , Jeffrey D. Kmetec
IPC分类号： G02F139
CPC分类号： G02F1/39
摘要： A pump resonant optical parametric oscillator (PROPO) is optimized for noise suppression of pump radiation of wavelength &lgr;p. The PROPO generally comprises a parametric amplifier disposed within a resonant cavity having input and output couplers. The parametric amplifier has a gain G that increases with increasing power at a pump wavelength &lgr;p. The cavity resonates at both pump wavelength &lgr;p and signal wavelength &lgr;s. The parametric amplifier transfers noise on the pump radiation to the signal radiation. Input coupler transmission TIC, output coupler pump transmission TP, signal transmission TS, and gain G are chosen such that a resonated pump power at &lgr;p is nearly clamped at a threshold level. By setting these parameters such that the PROPO has a threshold slightly lower than the available power at a wavelength of the optical pump, noise on the pump radiation may be reduced by greater than about a factor of 10. The same principle may be applied to a PROPO having two parametric amplifiers to suppress noise on a signal radiation.
摘要翻译：泵浦谐振光参量振荡器（PROPO）被优化用于波长lambdp的泵浦辐射的噪声抑制。 PROPO通常包括设置在具有输入和输出耦合器的谐振腔内的参数放大器。参数放大器的增益G随泵浦波长lambdp的功率增加而增加。泵浦波长lambdp和信号波长兰姆两腔谐振。参数放大器将泵浦辐射上的噪声传递到信号辐射。输入耦合器传输选择TIC，输出耦合器泵传输TP，信号传输TS和增益G，使得lambdp处的谐振泵浦功率几乎被钳位在阈值水平。通过设置这些参数使得PROPO具有略低于在光泵浦的波长处的可用功率的阈值，泵浦辐射上的噪声可以减小大于约10倍。相同的原理可以应用于 PROPO有两个参数放大器来抑制信号辐射的噪声。

6. 发明授权

US06844962B2 S-band light sources using erbium-doped fiber with depressed cladding 失效
标题翻译：使用具有凹陷包层的掺铒光纤的S波段光源
公开(公告)号：US06844962B2
公开(公告)日：2005-01-18
申请号：US10194680
申请日：2002-07-12
申请人： Mark A. Arbore , Yidong Zhou , Jeffrey D. Kmetec
发明人： Mark A. Arbore , Yidong Zhou , Jeffrey D. Kmetec
IPC分类号： H01S3/067 , H01S3/08 , H01S3/16 , H01S3/00
CPC分类号： H01S3/06758 , H01S3/06712 , H01S3/06716 , H01S3/0672 , H01S3/06729 , H01S3/06766 , H01S3/0677 , H01S3/06775 , H01S3/08045 , H01S3/1608 , H01S3/1616 , H01S2301/02
摘要： A source that employs an Erbium-Doped Fiber Amplifier (EDFA) for generating light in an S-band of wavelengths. The EDFA uses a fiber having a core with a core cross section surrounded by a depressed cladding with a depressed cladding cross section and a secondary cladding with a secondary cladding cross section. A pump source is provided for pumping the Erbium contained in the core of the fiber to a high relative inversion D, such that the Erbium exhibits positive gains in the S-band and high gains in a long wavelength band longer than the S-band. The core cross-section, the depressed cladding cross-section, and the refractive indices no, n1, and n2 are selected to produce losses at least comparable to the high gains in the long wavelength band and losses substantially smaller than the positive gains in the S-band. The source uses the amplified spontaneous emission (ASE) produced by the EDFA to generate broadband light and/or narrowband light with the aid of a wavelength selecting mechanism that selects an output wavelength of the light within the ASE emission spectrum of the EDFA.
摘要翻译：采用掺铒光纤放大器（EDFA）产生S波段波长的光源。 EDFA使用具有芯的纤维，芯的芯横截面由具有凹陷包层横截面的凹陷包层和具有次级包层横截面的次级包层围绕。提供了泵浦源，用于将包含在光纤的芯中的铒泵送到高相对反相D，使得铒在S波段中呈现正增益，并且在长波长带上长于S波段的高增益。核心横截面，凹陷包层横截面和折射率no，n1和n2被选择以产生至少与长波长带中的高增益相当的损耗，并且显着小于 S波段。源使用由EDFA产生的放大的自发发射（ASE），借助于选择EDFA的ASE发射光谱内的光的输出波长的波长选择机制产生宽带光和/或窄带光。

7. 发明授权

US5774488A Solid-state laser with trapped pump light 失效
标题翻译：固态激光器捕获泵浦光
公开(公告)号：US5774488A
公开(公告)日：1998-06-30
申请号：US268781
申请日：1994-06-30
申请人： Jeffrey D. Kmetec
发明人： Jeffrey D. Kmetec
IPC分类号： H01S3/02 , H01S3/04 , H01S3/042 , H01S3/06 , H01S3/08 , H01S3/0941 , H01S3/109 , H01S3/23 , H01S3/094
CPC分类号： H01S3/042 , H01S3/025 , H01S3/0405 , H01S3/0407 , H01S3/061 , H01S3/07 , H01S3/08072 , H01S3/094084 , H01S3/0941 , H01S3/109 , H01S3/2316 , Y10S707/99931 , Y10S707/99933 , Y10S707/99935
摘要： A solid-state laser in which a rod (10) of lasing material is held within an optical cavity formed within a cooling block (40) having a highly surface facing the rod. A longitudinal slit (44) formed in the block from the optical cavity to the outside allows the pumping light from an emission line (36) of semiconductor stripe lasers (30) fabricated on a laser bar (28) to irradiate the laser rod and multiply reflect within the optical cavity. Thereby, pump light is efficiently absorbed by the laser rod, and the laser rod is thermally controlled. Alternatively, cooling liquid (124) can flow axially along the laser rod and within an axially extending optical cavity formed by a reflective coating (125) deposited on a tube (122) enclosing the cooling liquid and having a slit (126) through which pump light is irradiated.
摘要翻译：一种固体激光器，其中激光材料的杆（10）保持在形成在具有面向杆的高表面的冷却块（40）内的光学腔内。从光腔到外部形成在块中的纵向狭缝（44）允许来自制造在激光棒（28）上的半导体条形激光器（30）的发射线（36）的泵浦光照射激光棒并乘以反射在光腔内。因此，泵浦光被激光棒有效地吸收，激光棒被热控制。或者，冷却液体（124）可以沿着激光棒轴向流动并且在由沉积在包围冷却液体的管（122）上并具有狭缝（126）的反射涂层（125）形成的轴向延伸的光学腔内，泵光被照射。

8. 发明授权

US5757831A Electronic suppression of optical feedback instabilities in a solid-state laser 失效
标题翻译：电子抑制固态激光器中的光反馈不稳定性
公开(公告)号：US5757831A
公开(公告)日：1998-05-26
申请号：US679523
申请日：1996-07-12
申请人： Jeffrey D. Kmetec , Joseph J. Alonis , Thomas J. Kane
发明人： Jeffrey D. Kmetec , Joseph J. Alonis , Thomas J. Kane
IPC分类号： H01S3/131 , H01S5/0683
CPC分类号： H01S3/1312 , H01S5/0683 , H01S5/06832
摘要： A stabilized solid-state laser in a thermal imaging system in which a laser diode pumps the solid-state laser and a modulator modulates the laser beam according to graphical data to be recorded in a thermally sensitive medium, as is used in the graphics industry. The solid-state laser is stabilized against relaxation oscillations induced in the laser by modulated light reflected back from the thermally sensitive medium. The light reflected from the medium is allowed to reenter the solid-state laser, but the optical output of the solid-state laser is sampled in the frequency band in which relaxation oscillations occur. The detected intensity is then used in a feedback circuit to control the intensity of the diode laser that is optically pumping the solid-state laser. Thereby, the data modulation does not cause the solid-state laser to oscillate, and neither a Faraday rotator nor use of a diffracted beam is required.
摘要翻译：在热成像系统中的稳定的固体激光器，其中激光二极管泵浦固态激光器，并且调制器根据图形数据对激光束进行调制，以记录在热敏介质中，如图形工业中所使用的那样。固态激光器通过从热敏介质反射的调制光在激光器中感应到的松弛振荡稳定。允许从介质反射的光重新进入固态激光器，但固体激光器的光输出在发生弛豫振荡的频带中被采样。然后将检测到的强度用于反馈电路中以控制光泵浦固态激光器的二极管激光器的强度。因此，数据调制不会导致固体激光器振荡，并且不需要法拉第旋转器也不需要使用衍射光束。

9. 发明授权

US07700967B2 Illumination device with a wavelength converting element held by a support structure having an aperture 有权
标题翻译：具有由具有孔径的支撑结构保持的波长转换元件的照明装置
公开(公告)号：US07700967B2
公开(公告)日：2010-04-20
申请号：US11754210
申请日：2007-05-25
申请人： Li Zhang , Franklin J. Wall, Jr. , Richard S. Kern , Jeffrey D. Kmetec
发明人： Li Zhang , Franklin J. Wall, Jr. , Richard S. Kern , Jeffrey D. Kmetec
IPC分类号： H01L33/00
CPC分类号： H01L33/507 , H01L33/483 , H01L33/58
摘要： An illumination device includes a light source, such as one or more light emitting diodes and a wavelength converting element that is mounted on an opaque support structure. The support structure includes an aperture with which the wavelength converting element is aligned so that the converted light is emitted through the aperture. The wavelength converting element may be a rigid structure, such as a luminescent ceramic and the aperture may be a hole through the support structure. The support structure may hold the wavelength converting element so that it is physically separated from the light source, or alternatively, the support structure may place the wavelength converting element in physical contact with the light source.
摘要翻译：照明装置包括诸如一个或多个发光二极管的光源和安装在不透明支撑结构上的波长转换元件。支撑结构包括孔径，波长转换元件与孔对准，使得转换的光通过孔径发射。波长转换元件可以是刚性结构，例如发光陶瓷，并且孔可以是穿过支撑结构的孔。支撑结构可以保持波长转换元件，使得其与光源物理分离，或者替代地，支撑结构可以将波长转换元件与光源物理接触。

10. 发明申请

US20080290362A1 Illumination Device with a Wavelength Converting Element Held by a Support Structure Having an Aperture 有权
标题翻译：具有波长转换元件的照明装置由具有孔径的支撑结构持有
公开(公告)号：US20080290362A1
公开(公告)日：2008-11-27
申请号：US11754210
申请日：2007-05-25
申请人： Li Zhang , Franklin Wall , Richard S. Kern , Jeffrey D. Kmetec
发明人： Li Zhang , Franklin Wall , Richard S. Kern , Jeffrey D. Kmetec
IPC分类号： H01L33/00
CPC分类号： H01L33/507 , H01L33/483 , H01L33/58
摘要： An illumination device includes a light source, such as one or more light emitting diodes and a wavelength converting element that is mounted on an opaque support structure. The support structure includes an aperture with which the wavelength converting element is aligned so that the converted light is emitted through the aperture. The wavelength converting element may be a rigid structure, such as a luminescent ceramic and the aperture may be a hole through the support structure. The support structure may hold the wavelength converting element so that it is physically separated from the light source, or alternatively, the support structure may place the wavelength converting element in physical contact with the light source.
摘要翻译：照明装置包括诸如一个或多个发光二极管的光源和安装在不透明支撑结构上的波长转换元件。支撑结构包括孔径，波长转换元件与孔对准，使得转换的光通过孔径发射。波长转换元件可以是刚性结构，例如发光陶瓷，并且孔可以是穿过支撑结构的孔。支撑结构可以保持波长转换元件，使得其与光源物理分离，或者替代地，支撑结构可以将波长转换元件与光源物理接触。

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