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101. 发明专利

JP2002009375A LIGHT AMPLIFIER 失效
公开(公告)号：JP2002009375A
公开(公告)日：2002-01-11
申请号：JP2001120778
申请日：2001-04-19
申请人： TRW INC
发明人： INJEYAN HAGOP , HOEFER CAROLYN S , PALESE STEPHEN P
IPC分类号： H01S3/094 , H01S3/06 , H01S3/063 , H01S3/093 , H01S3/0941 , H01S3/16 , H01S3/23
摘要： PROBLEM TO BE SOLVED: To provide a light amplifier capable of bringing a relatively longer absorption length with relatively high total efficiency. SOLUTION: Excited light is turned to the side face of a slab provided with windows 41 and 43. In order to internally reflect excitation beams along a laser axis, end faces 28 and 30 are formed at the angle of about 45 deg. to a longitudinal axis so as to reflect the excited light within the slab coaxial to amplified light. In order to limit the absorption of the excited light to the center of the slab, the slab is formed of a composite material provided with opposing ends formed of an undoped main material and the center formed of a doped main material.

102. 发明专利

JP2001127362A REFLECTION CYLINDER FOR SOLID-LASER OSCILLATOR 失效
公开(公告)号：JP2001127362A
公开(公告)日：2001-05-11
申请号：JP30791399
申请日：1999-10-29
申请人： MITSUI KOZAN MATERIAL KK
发明人： JOJIMA MASAAKI , IWANAGA KATSUSUKE
IPC分类号： H01S3/093 , C04B35/10
摘要： PROBLEM TO BE SOLVED: To provide a reflection cylinder for solid-laser oscillators wherein its reflection factor is high for any light included within the wide wavelength scope of 400-1000 nm, and it can condense efficiently the excitation light emitted from an excitation lamp into a laser medium, and further, it has a large terminal-shock resistance, and moreover, it can be used over a long term. SOLUTION: A reflection cylinder as a condenser for solid-laser oscillators is formed out of a mullite ceramics. As the mullite ceramics, there is used the one having its Al2O3 content 71-74 wt.%, its SiO2 content of 26-29 wt.%, the total content of Al2O3 and SiO2 of 99 wt.%, its bulk density not smaller than 3.0 g/cm3, its thermal expansion coefficient not larger than 4.5×10-6/ deg.C, and its few content of amorphous glass. As the inner peripheral section of the reflection cylinder, while an ellipse at whose two focuses an excitation lamp an a laser medium are positioned respectively is used preferably, a circle and rectangle can be also used. As a result, in the reflection cylinder, a reflectivity not smaller than 90% can be obtained for any light having a wavelength of 400-1000 nm.

103. 发明专利

JP3155132B2 失效
公开(公告)号：JP3155132B2
公开(公告)日：2001-04-09
申请号：JP26190993
申请日：1993-09-24
IPC分类号： B23K26/00 , H01S3/02 , H01S3/04 , H01S3/042 , H01S3/05 , H01S3/06 , H01S3/08 , H01S3/093 , H01S3/094 , H01S3/23

104. 发明专利

JP2000261063A SOLID-STATE LASER 失效
公开(公告)号：JP2000261063A
公开(公告)日：2000-09-22
申请号：JP5851699
申请日：1999-03-05
申请人： FUJI PHOTO FILM CO LTD
发明人： NAGANO KAZUHIKO
IPC分类号： H01S3/094 , H01S3/02 , H01S3/093
摘要： PROBLEM TO BE SOLVED: To obtain a stable laser beam by realizing a structure, wherein an excitating-light-condensed point does not move on a laser medium, when an excitating part, a light-condensing part and a resonator part of a solid-state laser are made into respective units. SOLUTION: An excitating unit 2 and a resonator unit 4 are jointed to a light-condensing unit 3 with jointing members 28 and 29 composed of a rigid body having an elastic structure inbetween. The joining members 28 and 29 are placed symmetrically with respect to a laser optical axis. Only the light- condensing unit 3 is set as a fitting/fixing part to an apparatus, and each of the excitating unit 2 and the resonator unit 4 has a cantilever structure and are jointed to the light-condensing unit 3.

105. 发明专利

JP3083688B2 失效
公开(公告)号：JP3083688B2
公开(公告)日：2000-09-04
申请号：JP19144193
申请日：1993-08-02
IPC分类号： H01S3/06 , H01S3/04 , H01S3/042 , H01S3/07 , H01S3/08 , H01S3/093 , H01S3/0941 , H01S3/105 , H01S3/23

106. 发明专利

JP2000036631A ZIGZAG SAB LASER GAIN MEDIUM FOR CONDUCTING END PUMPING 失效
公开(公告)号：JP2000036631A
公开(公告)日：2000-02-02
申请号：JP17068499
申请日：1999-06-17
申请人： TRW INC
发明人： INJEYAN HAGOP , HOEFER CAROLYN S
IPC分类号： H01S3/094 , H01S3/06 , H01S3/063 , H01S3/093 , H01S3/0941 , H01S3/16 , H01S3/23 , H01S3/10
摘要： PROBLEM TO BE SOLVED: To enhance overall efficiency via a relatively long absorption length by implanting a stimulation energy from an end or end pumping in an optical amplifier. SOLUTION: An optical amplifier 20 uses end pumping. In such a form, a stimulation light is coaligned along an amplified light and a length direction axial direction of a slab. As a result, an absorption length becomes relatively long, and hence overall efficiency becomes relatively high. For example, the amplifier 20 has a long slab 22 and a pair of pumping stimulation beam sources 24, 26. The slab 22 is formed to entirely have a section of a rectangle or a square, and a pair of both end faces 28, 30 and four side faces 32. A length direction axis, that is, a lasing axis 34 is substantially parallel to the face 32 between the faces 28 and 30. The slab 22 is formed of a solid state lasing material to form a zigzag amplifier.

107. 发明专利

JPH1146024A SLAB-TYPE SOLID-STATE LASER DEVICE 失效
公开(公告)号：JPH1146024A
公开(公告)日：1999-02-16
申请号：JP19819597
申请日：1997-07-24
申请人： FUJI ELECTRIC CO LTD
发明人： NUMATA SHINOBU , YAGINUMA SADAHIRO
IPC分类号： H01S3/042 , H01S3/093 , H01S3/16
摘要： PROBLEM TO BE SOLVED: To improve the fitting structure of an O-ring for enhancing the reliability of sealing characteristic for a slab-type solid-state laser device, in which optical guiding members are combined in the both sides of a solid-state laser medium and sealing the gap between the optical guiding members and for accommodating cabinet with solution using an O-ring. SOLUTION: This device is structured so as to comprise a slab-type solid-state laser medium 1, an assembling body of this solid-state laser medium 1 and slab-type optical guiding members 2 arranged in both sides of the light inputting and outputting end surfaces through the alignment of optical axes thereof and an excitation lamp 3 built in the accommodation cabinet 4, in order to input and output the laser beam through the end surface of an optical guiding member 2 protruded to the outside from this accommodation cabinet 4 by applying a cooling medium to the inside thereof. An O-ring 6 is arranged, for the purpose of sealing, to the area where the optical guiding member 2 is provided through the end surface of the accommodating cabinet 4. The O-ring 6 is engaged with a circumferencial groove 2a, formed at the external circumference surface of the optical guiding member for the positioning to the area where it is not irradiated with the laser beam. Thereby, even if the optical guiding member is shifted in the axial direction at the time of adjusting the assembling position, the O-ring 6 will not shift from the constant position and the O-ring 6 is prevented from being burned when it is radiated with the laser beam.

108. 发明专利

JP2849032B2 失效
公开(公告)号：JP2849032B2
公开(公告)日：1999-01-20
申请号：JP23855793
申请日：1993-09-24
申请人： MITSUBISHI DENKI KK
发明人： YASUI KIMIHARU , KOJIMA TETSUO , IWAKI KUNIAKI
IPC分类号： G02F1/37 , G03H1/04 , H01S3/00 , H01S3/08 , H01S3/0915 , H01S3/093 , H01S3/10 , H01S3/108 , H01S3/23

109. 发明专利

JPH10261825A SEMICONDUCTOR LASER LIGHT SHAPING OPTICAL SYSTEM AND SEMICONDUCTOR LASER-EXCITED SOLID-STATE LASER DEVICE 失效
公开(公告)号：JPH10261825A
公开(公告)日：1998-09-29
申请号：JP6461997
申请日：1997-03-18
申请人： NEC CORP
发明人： TADA TERUSHI
IPC分类号： G02B27/09 , H01S3/093 , H01S3/094
摘要： PROBLEM TO BE SOLVED: To provide a high-output semiconductor laser-excited solid-state laser device. SOLUTION: Excitation light emitted from a semiconductor laser 11 is first shaped by means of an excitation light shaping optical system 12 for first axis and then shaped by means of an excitation light shaping optical system 13 for slow axis. The semiconductor laser 11 which emits the excitation light from the output-side end face of a solid-state laser crystal 11 and optical systems 12 and 13 are set so that the slow axis of the optical systems may become nearly perpendicular to the plane decided by the optical axes of a resonator and the excitation light. At the same time, the angle between the optical axis of the resonator and that of the optical systems 12 and 13 is made minimum within such an extent that the resonator does not interfere with the optical path of an excitation system.

110. 发明专利

JP2786922B2 失效
公开(公告)号：JP2786922B2
公开(公告)日：1998-08-13
申请号：JP2246490
申请日：1990-02-01
申请人： SUMITOMO KINZOKU KOZAN KK
发明人： SEKINO TAKIO
IPC分类号： G02B17/00 , F21V7/00 , F21V7/04 , G02B19/00 , G02F1/1335 , G09F9/00 , G09F13/04 , H01S3/093

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