公开(公告)号：US5272708A

公开(公告)日：1993-12-21

申请号：US968880

申请日：1992-10-30

申请人： Leon Esterowitz ,  Joseph F. Pinto

发明人： Leon Esterowitz ,  Joseph F. Pinto

IPC分类号： H01S3/098 ,  H01S3/16 ,  H01S3/10

CPC分类号： H01S3/1109 ,  H01S3/105 ,  H01S3/1068 ,  H01S3/1616

摘要： A continuous wave modelocked laser is provided which generates output pul having a duration in the picosecond range at a repetition rate in the MHz to GHz ranges. The laser includes a laser cavity defined by spaced, opposed reflective member forming a reflective path therebetween; a host laser crystal disposed in the cavity; an acousto-optic modulator disposed between the host laser crystal and one reflective member for modulating the output of the host laser crystal; and a birefringent filter, disposed in the laser cavity between the host laser crystal and the one reflective member, for tuning the laser emission to any one of a plurality of wavelengths within a range between 1.86 .mu.m and 2.14 .mu.m. A pump source pumps the host laser crystal at a wavelength of substantially 785 nm. A collimating plano-convex lens is disposed so that the planar face thereof faces the laser crystal. A mechanical device adjusts the length of the reflective path by axially displacing the one reflective member in the laser cavity so as to match the cavity round trip time to the second harmonic of the drive frequency of the acoustic-optic modulator.

摘要翻译： 提供连续波锁模激光器，其产生具有在μ至GHz范围内的重复频率的皮秒范围内的持续时间的输出脉冲。 激光器包括由间隔开的相对反射构件限定的激光腔，其在它们之间形成反射路径; 设置在空腔中的主体激光晶体; 设置在主激光晶体和一个反射构件之间用于调制主激光晶体的输出的声光调制器; 以及设置在主激光晶体和一个反射构件之间的激光腔中的双折射滤光器，用于将激光发射调谐到1.86μm至2.14μm之间的范围内的多个波长中的任何一个。 泵浦源以大致785nm的波长泵送主激光晶体。 准直的平凸透镜被设置为使得其平面面向激光晶体。 机械装置通过轴向移动激光腔中的一个反射构件来调节反射路径的长度，以便将空腔往返时间与声光调制器的驱动频率的二次谐波相匹配。

公开(公告)号：US5107509A

公开(公告)日：1992-04-21

申请号：US684091

申请日：1991-04-12

申请人： Leon Esterowitz ,  Joseph F. Pinto ,  Gregory J. Quarles

发明人： Leon Esterowitz ,  Joseph F. Pinto ,  Gregory J. Quarles

IPC分类号： H01S3/106 ,  H01S3/16

CPC分类号： H01S3/106 ,  H01S3/16

摘要： A tunable solid state laser for producing a laser emission at any desired w or high laser gain transition in a predetermined range of wavelengths is disclosed. The tunable solid state laser comprises: a laser cavity defined by a first reflective element and an output coupler reflective element to form a reflective path therebetween; a laser crystal disposed in the laser cavity; means for optically exciting the laser crystal to produce a laser emission in the predetermined range of wavelengths; a tunable element disposed in the laser cavity between the laser crystal and one of the reflective elements for tuning the laser emission to any desired laser transition in the predetermined range of wavelengths; and a plurality of optical plates oriented at Brewster's angle in the reflective path in the laser cavity for suppressing oscillation of undesired wavelengths within the laser cavity, the optical plates being transparent to the laser emission over the predetermined range of wavelengths. The tunable solid state laser can further include an aperture disposed in the reflective path in the laser cavity to allow the laser to lase in the laser cavity only at the lowest order spatial transverse mode of the desired wavelength in the predetermined range of wavelengths.

摘要翻译： 公开了一种用于在预定波长范围内以任何期望的低或高激光增益转变产生激光发射的可调固态激光器。 可调谐固体激光器包括：由第一反射元件和输出耦合器反射元件限定的激光腔，以在它们之间形成反射路径; 设置在激光腔中的激光晶体; 用于光学激发激光晶体以在预定波长范围内产生激光发射的装置; 设置在所述激光器腔内的所述激光器腔中的可调元件，所述可调谐元件用于将所述激光发射调谐到所述预定波长范围内的任何期望的激光转换; 以及在激光腔中的反射路径中以布鲁斯特角度定向的多个光学板，用于抑制激光腔内的不需要的波长的振荡，所述光学板对于在预定波长范围内的激光发射是透明的。 可调固态激光器还可以包括设置在激光腔中的反射路径中的孔，以允许激光器仅在预定波长范围内以期望波长的最低阶空间横向模式激光在激光腔中。

公开(公告)号：US5754572A

公开(公告)日：1998-05-19

申请号：US751062

申请日：1996-11-15

申请人： Joseph F. Pinto ,  Leon Esterowitz

发明人： Joseph F. Pinto ,  Leon Esterowitz

IPC分类号： H01S3/063 ,  H01S3/094 ,  H01S3/16 ,  H01S3/10

CPC分类号： H01S3/094 ,  H01S3/0635 ,  H01S3/1022 ,  H01S3/1603

摘要： A mirrorless, distributed-feedback (DFB), ultraviolet, tunable, narrow-liidth, solid state laser for remote sensing and medical applications is disclosed. Optical pumping in the DFB laser is accomplished using a frequency quadrupled, 10 Hz., Q-switched, Nd:YAG laser operating at 266 nm. The pump beam is diffracted off a grating (2400 grooves per mm.) into two parts. The two beams are subsequently recombined at the side face of the Ce:doped crystal (8 mm.times.8 mm.times.30 mm) at an angle of about 2.theta.(about 81 degrees). The resulting spatially periodic excitation within the Ce-doped gain medium due to the interferring pump beams determines the operating wavelength of the DFB laser.

摘要翻译： 公开了一种用于遥感和医疗应用的无反射镜，分布式反馈（DFB），紫外线，可调谐，窄线宽固态激光器。 DFB激光器中的光泵浦使用频率为四倍的10 Hz Q开关Nd：YAG激光器在266 nm工作。 泵浦光束从光栅（每个2400毫米每毫米）衍射成两部分。 随后，两个光束以约2θ（约81度）的角度在Ce掺杂晶体（8mm×8mm×30mm）的侧面重新结合。 由于干涉泵浦光束导致Ce掺杂增益介质中的空间周期性激发决定了DFB激光器的工作波长。

公开(公告)号：US5388112A

公开(公告)日：1995-02-07

申请号：US235844

申请日：1994-04-29

申请人： Leon Esterowitz ,  Robert C. Stoneman ,  Joseph F. Pinto

发明人： Leon Esterowitz ,  Robert C. Stoneman ,  Joseph F. Pinto

IPC分类号： H01S3/081 ,  H01S3/098 ,  H01S3/16 ,  H01S3/10

CPC分类号： H01S3/08036 ,  H01S2301/00 ,  H01S2302/00 ,  H01S3/0811 ,  H01S3/1616 ,  H01S3/164 ,  H01S3/1653

摘要： A room-temperature solid state laser for producing an output laser emissiont any wavelength within a preselected range of wavelengths is disclosed. In a preferred embodiment, the laser comprises: a pump laser for emitting a CW pump beam at a preselected wavelength; a laser cavity defined by a first reflective element, an output coupler reflective element and a folded mirror disposed between the first reflective element and the output coupler reflective element to form a reflective path thereamong in the laser cavity; a laser crystal disposed in the laser cavity, the laser crystal being responsive to the CW pump beam at the preselected wavelength for producing a CW laser emission within a preselected range of wavelengths when the laser crystal is pumped by the CW pump beam at the preselected wavelength, the folded mirror operating to collimate the CW laser emission in the optical path between the folded mirror and the output coupler reflective element; and a tuning element disposed in the laser cavity between the folded mirror and the output coupler reflective element for tuning the collimated CW laser emission to any wavelength within the preselected range of wavelengths.

摘要翻译： 公开了一种室温固态激光器，用于在预选的波长范围内产生任何波长的输出激光发射。 在优选实施例中，激光器包括：用于以预选波长发射CW泵浦光束的泵激光器; 由第一反射元件限定的激光腔，输出耦合器反射元件和设置在第一反射元件和输出耦合器反射元件之间的折叠反射镜，以在激光腔中形成反射路径; 激光晶体设置在激光腔中，激光晶体响应于预选波长的CW泵浦光束，以在激光晶体以预选波长的CW泵浦光泵浦时在波长范围内产生CW激光发射 所述折叠镜操作以准直所述折射镜和所述输出耦合器反射元件之间的光路中的CW激光发射; 以及调谐元件，设置在折射镜和输出耦合器反射元件之间的激光腔中，用于将准直的CW激光发射调谐到预选的波长范围内的任何波长。

公开(公告)号：US5487079A

公开(公告)日：1996-01-23

申请号：US368821

申请日：1995-01-05

申请人： Leon Esterowitz ,  Joseph F. Pinto

发明人： Leon Esterowitz ,  Joseph F. Pinto

IPC分类号： H01S3/106 ,  H01S3/109 ,  H01S3/16 ,  H01S3/10

CPC分类号： H01S3/16 ,  H01S3/106 ,  H01S3/109 ,  H01S3/1648

摘要： An ultraviolet solid state laser includes: (a) a laser cavity defined by aet of opposing mirrors, (b) a laser medium disposed in this laser cavity, where this medium includes a LiSrAIF.sub.6 (LiSAF) host material doped with enough cerium ions to produce a longitudinal mode laser emission when this laser medium is pumped; and (c) a source of pumping radiation.

摘要翻译： 紫外固体激光器包括：（a）由一组相对的反射镜限定的激光腔，（b）设置在该激光腔中的激光介质，其中该介质包括掺杂足够的铈离子的LiSrAIF6（LiSAF） 当该激光介质泵送时产生纵模式激光发射; 和（c）泵送辐射源。

公开(公告)号：US5206867A

公开(公告)日：1993-04-27

申请号：US829145

申请日：1992-01-31

申请人： Leon Esterowitz ,  Joseph F. Pinto

发明人： Leon Esterowitz ,  Joseph F. Pinto

IPC分类号： H01S3/098 ,  H01S3/109 ,  H01S3/16

CPC分类号： H01S3/08036 ,  H01S3/109 ,  H01S3/0805 ,  H01S3/1062 ,  H01S3/1616 ,  H01S3/164 ,  H01S3/1696

摘要： A flashpumped, tunable, two-micron, solid state laser is disclosed in which laser spiking is suppressed. The solid state laser comprises: a laser cavity defined by a first reflective element and an output coupler reflective element to form a reflective path therebetween; a laser crystal disposed in the laser cavity, the laser crystal having a host material doped with preselected activator ions sufficient to produce a pulse of laser emission at a desired laser transition wavelength in a range between about 1.9 microns and about 2.1 microns when the crystal is optically excited to produce the laser emission; a pulsed flashlamp for optically exciting the laser crystal to produce a pulse of laser emission at the desired laser transition wavelength; a tuner disposed in the laser cavity between the laser crystal and one of the reflective elements for tuning the laser emission to the desired laser transition wavelength in the range of wavelengths between about 1.9 microns and about 2.1 microns; optical plates oriented at Brewster's angle in the reflective path for suppressing oscillation of undesired wavelengths within the laser cavity; and a nonlinear crystal disposed in the reflective path to enable the laser to emit through the output coupler reflective element a smooth, long pulse of laser emission without spiking at the desired laser transition wavelength.

摘要翻译： 公开了一种闪光，可调谐，两微米的固体激光器，其中抑制了激光尖峰。 固态激光器包括：由第一反射元件和输出耦合器反射元件限定的激光腔，以在它们之间形成反射路径; 设置在激光腔中的激光晶体，所述激光晶体具有掺杂有预选活化剂离子的主体材料，所述主体材料足以在所述晶体为约1.9微米至约2.1微米的范围内以所需激光跃迁波长产生激光发射脉冲 光激发产生激光发射; 用于光学激发激光晶体以产生在所需激光跃迁波长处的激光发射脉冲的脉冲闪光灯; 设置在激光腔之间的激光器腔中的调谐器，用于将激光发射调谐到在约1.9微米至约2.1微米之间的波长范围内的所需激光跃迁波长; 在反射路径中以布鲁斯特角度定向的光学板，用于抑制激光腔内不需要的波长的振荡; 以及设置在反射路径中的非线性晶体，以使得激光能够通过输出耦合器反射元件发射光滑的长的激光发射脉冲，而不会以期望的激光跃迁波长尖峰。

公开(公告)号：US5003547A

公开(公告)日：1991-03-26

申请号：US459211

申请日：1989-12-29

申请人： Leon Esterowitz ,  Gregory J. Quarles ,  Joseph F. Pinto

发明人： Leon Esterowitz ,  Gregory J. Quarles ,  Joseph F. Pinto

IPC分类号： H01S3/08 ,  H01S3/081 ,  H01S3/16

CPC分类号： H01S3/16 ,  H01S3/08059 ,  H01S3/0815

摘要： A room temperature solid state laser for producing a laser emission at a wavelength of substantially 1.96 microns is disclosed. In a preferred embodiment, the laser includes: a laser cavity defined by a plurality of coated reflective elements to form a reflective path thereamong; a laser crystal disposed in the laser cavity and capable of lasing at substantially 1.96 mircons and 2.01 microns when excited; and means for exciting the laser crystal to lase at substantially 1.96 microns and at substantially 2.01 microns. The laser crystal is comprised of a host crystal material capable of accepting Cr.sup.3+ and Tm.sup.3+ ions. Through their respective reflectivities at each of the wavelengths at substantially 1.96 microns and 2.01 microns, the coated reflective elements collectively operate to produce substantial loss in radiation at the wavelength of substantially 2.01 microns and to reflect radiation from the excited laser crystal at a wavelength which will sustain a laser emission only at a wavelength of substantially 1.96 microns.

摘要翻译： 公开了用于产生基本上为1.96微米波长的激光发射的室温固态激光器。 在优选实施例中，激光器包括：由多个涂覆的反射元件限定的激光腔，以形成反射路径; 激光晶体设置在激光腔中并且当激发时能够以基本上为1.96微米和2.01微米的激光发射; 以及用于激发激光晶体以基本上为1.96微米并且基本上为2.01微米的装置。 激光晶体由能够接受Cr3 +和Tm3 +离子的主晶体材料构成。 通过它们在基本上为1.96微米和2.01微米的每个波长处的各自的反射率，涂覆的反射元件共同操作以在基本上为2.01微米的波长处产生辐射的显着损耗，并且以波长将的激光反射来自激发的激光晶体的辐射， 仅在基本上为1.96微米的波长下维持激光发射。

公开(公告)号：US5764662A

公开(公告)日：1998-06-09

申请号：US789011

申请日：1997-01-27

申请人： Joseph F. Pinto

发明人： Joseph F. Pinto

IPC分类号： G02F1/35 ,  H01S3/091 ,  H01S3/16 ,  H01S3/10

CPC分类号： G02F1/3534 ,  H01S3/091 ,  H01S3/1603 ,  H01S3/1648

摘要： An ultraviolet laser system is disclosed for generating an ultraviolet frency in the spectral region between 223 nm and 243 nm by mixing the tunable output of a Ce.sup.3+ :LiCAF laser with the 1064 nm radiation from a Nd:YAG pump laser in a BBO nonlinear crystal.

摘要翻译： 公开了一种紫外激光系统，用于通过将Ce 3+：LiCAF激光器的可调谐输出与来自BBO非线性晶体中的Nd：YAG泵浦激光器的1064nm辐射混合来在223nm和243nm之间的光谱区域中产生紫外线频率。

公开(公告)号：US4990322A

公开(公告)日：1991-02-05

申请号：US555365

申请日：1990-07-19

申请人： Clifford R. Pollock ,  Joseph F. Pinto ,  Efstratios Georgiou

发明人： Clifford R. Pollock ,  Joseph F. Pinto ,  Efstratios Georgiou

IPC分类号： H01S3/16

CPC分类号： H01S3/1681

摘要： A powerful and stable color center laser is provided by additively colored NaCl:OH.sup.- crystals. The OH.sup.- impurity is the key dopant for creating color center lasing in NaCl, providing an output tunable over the 1.41 to 1.81 .mu.m region. In addition, modelocked pulses of 5 psec duration are available in a synchronously pumped arrangement, tunable from 1.47 to 1.73 .mu.m.

摘要翻译： 强大而稳定的彩色中心激光由附加色泽的NaCl：OH-晶体提供。 OH-杂质是在NaCl中产生色心激光的关键掺杂剂，在1.41至1.81μm的区域提供了可调谐的输出。 另外，5 psec持续时间的锁相脉冲可以在同步抽送的布置中使用，可调范围为1.47到1.73微米。

公开(公告)号：US5805326A

公开(公告)日：1998-09-08

申请号：US239068

申请日：1994-05-06

申请人： Arthur W. Snow ,  James S. Shirk ,  Filbert J. Bartoli, Jr. ,  James R. Lindle ,  Michael E. Boyle ,  Richard G. S. Pong ,  Steven R. Flom ,  Joseph F. Pinto

发明人： Arthur W. Snow ,  James S. Shirk ,  Filbert J. Bartoli, Jr. ,  James R. Lindle ,  Michael E. Boyle ,  Richard G. S. Pong ,  Steven R. Flom ,  Joseph F. Pinto

IPC分类号： G02B26/02 ,  G02F1/35 ,  G02F1/355 ,  G02F1/03 ,  G02B5/22 ,  G02B9/00

CPC分类号： G02F1/3551 ,  G02B26/02 ,  G02F1/3523

摘要： An optical limiter structure which includes a limiter material preferably dissolved in a host. The limiter material is selected from substituted and unsubstituted phthalocyanines, naphthalocyanines, porphyrins, salts of these materials and mixtures thereof, whereas the host is selected from any material which can dissolve the limiter material to at least the extent of 0.1% by weight.

摘要翻译： 一种光学限制器结构，其包括优选地溶解在主体中的限制器材料。 限制剂材料选自取代和未取代的酞菁，萘酞菁，卟啉，这些材料的盐及其混合物，而主体选自能够将限制剂材料溶解至少达到0.1重量％程度的任何材料。