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公开(公告)号：US4099141A
公开(公告)日：1978-07-04
申请号：US667799
申请日：1976-03-17
申请人： Michele Leblanc , Guy Ripart , Albert Brule
发明人： Michele Leblanc , Guy Ripart , Albert Brule
CPC分类号： H01S3/08059 , H01S3/0816 , H01S3/0817 , H01S3/106
摘要： The invention relates to a laser generator. That generator comprises optical resonant cavity of the folded type, limited by two plane mirrors arranged in a same plane, side by side and a corner cube reflector for sending back the radiation coming from one of the said mirrors towards the other mirror. Application to telemeters and to illuminators.
摘要翻译： 本发明涉及一种激光发生器。 该发生器包括折叠型的光学谐振腔，由并排布置在同一平面中的两个平面镜限定，并且用于将来自所述反射镜中的一个的辐射发射回另一镜的角立方反射器。 应用于遥测仪和照明器。
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92.发明授权
公开(公告)号：US4081765A
公开(公告)日：1978-03-28
申请号：US692533
申请日：1976-06-03
申请人： Anthony D. Berg , William L. Wise
发明人： Anthony D. Berg , William L. Wise
摘要： Apparatus and a method are disclosed for continuously varying the output radiation frequency of a scanning laser system about a selected nominal output radiation frequency with a calibrated scan. Apparatus is disclosed for continuously varying the resonant frequencies of both the laser cavity and the reference cavity, for controlling this scanning and for calibrating the scan width. A method for calibrating the scan width is also disclosed.
摘要翻译： 公开了用于通过校准扫描连续地改变扫描激光系统关于所选择的标称输出辐射频率的输出辐射频率的装置和方法。 公开了用于连续改变激光腔和参考空腔的谐振频率的装置，用于控制该扫描和校准扫描宽度。 还公开了用于校准扫描宽度的方法。
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公开(公告)号：US3582819A
公开(公告)日：1971-06-01
申请号：US3582819D
申请日：1968-08-23
申请人： SIEMENS AG
发明人： MULLER RUDOLF , GURS KARL
IPC分类号： G02F1/01 , H01S3/05 , H01S3/082 , H01S3/083 , H01S3/105 , H01S3/106 , H01S3/107 , H01S3/11 , H04B10/00 , H04B10/50 , H01S3/00 , H04B9/00
CPC分类号： H01S3/115 , G02F1/01 , H01S3/08036 , H01S3/105 , H01S3/106 , H01S3/107 , H01S3/1075 , H04B10/505
摘要： Apparatus for emitting amplitude-modulated radiation with a low distortion-noise factor comprises a laser resonator forming an internal path for radiation generated internally of the resonator. At least two electrically controllable radiation modulating and decoupling devices form part of the resonator and are mutually spaced in the path for modulating respective portions of the radiation and decoupling it out of the resonator. An electrical push-pull circuit connected to the modulating and decoupling devices operates such devices simultaneously at the modulating frequency for push-pull modulation of the laser radiation issuing from the resonator to provide at least two complementary radiations.
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公开(公告)号：US3466110A
公开(公告)日：1969-09-09
申请号：US3466110D
申请日：1966-03-24
申请人： IBM
发明人： POLE ROBERT V , WIEDER HAROLD , MYERS ROBERT A
CPC分类号： H04N5/7425 , G02B27/50 , G03H1/00 , H01S3/106
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公开(公告)号：US3418598A
公开(公告)日：1968-12-24
申请号：US33993164
申请日：1964-01-24
申请人： RAYTHEON CO
发明人： PAANANEN ROY A
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公开(公告)号：US3418476A
公开(公告)日：1968-12-24
申请号：US35830364
申请日：1964-04-08
申请人： SIEMENS AG
发明人： RUDOLF MULLER , KARL GURS
IPC分类号： G02F1/01 , H01S3/05 , H01S3/082 , H01S3/083 , H01S3/105 , H01S3/106 , H01S3/107 , H01S3/11 , H04B10/00 , H04B10/50
CPC分类号： H01S3/115 , G02F1/01 , H01S3/08036 , H01S3/105 , H01S3/106 , H01S3/107 , H01S3/1075 , H04B10/505
摘要： 1,068,052. Modulating laser and maser radiation. SIEMENS A.G. April 13, 1964 [April 11, 1963; April 16, 1963; May 22, 1963], No. 15099/64. Heading H1C. The oscillatory radiation path in a laser or maser extends through a modulator which is controllable so that variable proportions of the laser or maser radiation may be retained in the radiation path and picked off from the path. In Fig. 1, laser element 1 lies in a resonant cavity 2, 2 1 , partial reflector 2 forming with a partial reflector 4 a further cavity containing a control element 5, the refractive index is varied by means of a modulating electric field. The assembly 2, 4, 5 forms a variable reflectivity interference mirror allowing the proportions of radiation picked off and retained to be varied. The assembly is adjusted so that a mean beam intensity is picked off in the absence of a modulating field, or element 5 is D.C. biased. In a push-pull system (Fig. 3, not shown) a similar interference mirror is arranged at the opposite end of the laser element, the control elements of the two assemblies being energized in antiphase. In this arrangement the radiation retained is unchanged by the modulation. In a modification, Fig. 4, control elements 325, 325 1 operated in push-pull vary the plane of polarization of the oscillatory radiation and Nicol prisms 324, 324 1 , 324 11 separate the differently polarized components. Output beams 326, 326 1 , 327, 3271 are obtained. Prism 3241 may be omitted, beam 327 then having an intensity equal to the combined intensities of the original beams 327, 327 1 . If the modulation frequency is low both prisms 324 1 and 324 11 may be omitted. A non-push-pull arrangement is also described (Fig. 2, not shown) in which a single prism and a single control element are used. In Fig. 5 the radiation circulates around a closed path, a unidirectional coupler 336 defining the direction of circulation. Control elements 332, 332 1 are placed in a waveguide (Fig. 6, not shown) and microwave radiation is passed from a source (344) through element 332 (342) is phasereversed and is then passed through element 332 1 (342 1 ) to a non-reflective termination (345). The relationship between the time taken for the modulating beam to travel from element 332 to element 332 1 in the waveguide and the time taken for the laser beam to travel between the two members is selected so that operation is push-pull, and the relationship may be such that push-pull operation is achieved without phase reversal of the microwave radiation. For high modulation frequencies elements 332, 332 1 are combined and the relationship between the travel time for the laser beam and the period of the modulating wave is suitably selected. The laser element may be a monocrystalline solid, e.g. ruby, a gaseous medium, a junction semi-conductor crystal (either a PN-junction or a junction between regions having different doping levels) or a semi-conductor crystal without a junction. The control element may be either electrically or magnetically controllable and may be a KDP or ADP crystal or a nitrobenzene cell. In the embodiments of Fig. 4 and 5 the Nicol prisms may be replaced by Wollaston or Rochon prisms. Element 5 in the embodiment of Fig. 1 may consist of a series of dielectric layers of different refractive indices, at least one layer being controllable by the modulating signal. It is also stated that modulation at low frequencies may be achieved by varying the separation between mirrors 2 and 4. In all the embodiments the control electrodes may form the semi-reflecting surfaces of the resonant cavity or cavities, and the various elements may be cemented together.
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97.发明授权公开(公告)号：US12013572B2
公开(公告)日：2024-06-18
申请号：US17708143
申请日：2022-03-30
发明人： Benjamin Vakoc , Meena Siddiqui
IPC分类号： H03M1/12 , A61B5/00 , G01B9/02091 , G01K11/32 , G02B6/293 , H01S3/067 , H03M1/20 , H01S3/08 , H01S3/106
CPC分类号： G02B6/2932 , A61B5/0066 , G01B9/02091 , G01K11/32 , H01S3/0675 , H03M1/20 , A61B5/6826 , H01S3/06791 , H01S3/08086 , H01S3/106 , H01S3/1062
摘要： Exemplary apparatus can be provided which can include a laser arrangement that is configured to provide a laser radiation, and including an optical cavity. The optical cavity can include a dispersive optical waveguide first arrangement having first and second sides, and which is configured to (i) receive at least one first electro-magnetic radiation at the first side so as to provide at least one second electro-magnetic radiation, and (ii) to receive at least one third electro-magnetic radiation at the second side so as to provide at least one fourth electro-magnetic radiation. The first and second sides are different from one another, and the second and third radiations are related to one another. The optical cavity can also include an active optical modulator second arrangement which can be configured to receive and modulate the fourth radiation so as to provide the first electro-magnetic radiation to the first arrangement. The laser radiation can be associated with at least one of the first, second, third or fourth radiations.
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公开(公告)号：US20190245317A1
公开(公告)日：2019-08-08
申请号：US16343357
申请日：2017-10-25
发明人： Masaki WADA , Shinichi AOZASA , Taiji SAKAMOTO , Takashi YAMAMOTO , Kazuhide NAKAJIMA , Takayoshi MORI
IPC分类号： H01S3/067 , H01S3/106 , H04B10/2581
CPC分类号： H01S3/06791 , H01S3/067 , H01S3/0675 , H01S3/06754 , H01S3/10 , H01S3/106 , H04B10/2581
摘要： An optical amplifier of the present disclosure includes an optical resonator that includes an amplification fiber capable of amplifying signal light having one or more propagation modes and resonates at least one propagation mode of the signal light amplified by the amplification fiber; an excitation light source that outputs excitation light for exciting the amplification fiber; and a multiplexer that multiplexes the signal light and the excitation light, in which the optical resonator includes a gain clamp setting unit which sets gain clamp for at least one propagation mode out of a plurality of propagation modes resonating in the optical resonator.
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公开(公告)号：US20190097376A1
公开(公告)日：2019-03-28
申请号：US16200132
申请日：2018-11-26
申请人： FUJIFILM Corporation
发明人： Hiroyasu ISHII , Takatsugu WADA , Keiji TSUBOTA
CPC分类号： H01S3/025 , H01S3/0407 , H01S3/042 , H01S3/061 , H01S3/0615 , H01S3/0623 , H01S3/0805 , H01S3/08054 , H01S3/092 , H01S3/0933 , H01S3/106 , H01S3/11 , H01S3/1611 , H01S3/1623 , H01S3/1625 , H01S3/1633 , H01S3/1636
摘要： Provided is a solid-state laser device in which a linear resonator including an output mirror and a rear mirror, a laser rod, and optical members are provided on a common base and are contained in a housing having the base as a portion. A holding part is provided to hold an excitation light source that extends parallel to the laser rod on a side of the laser rod opposite to the base. The optical members including a Q-switch are disposed between the laser rod and the rear mirror. An upper end position of the output mirror is at a position lower than a lower end position of the excitation light source held by the holding part, with the base as a reference. The holding part holds the excitation light source so as to be capable of being inserted and extracted with respect to the output mirror side in a longitudinal direction of the excitation light source.
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公开(公告)号：US20180261983A1
公开(公告)日：2018-09-13
申请号：US15292792
申请日：2016-10-13
CPC分类号： H01S5/5027 , G02B6/4204 , G02B6/43 , H01S3/106 , H01S5/0085 , H01S5/0683 , H01S5/1028 , H01S5/142 , H01S5/3013 , H01S5/4062 , H01S5/4068 , H01S5/4087
摘要： The disclosed embodiments relate to the design of a hybrid laser comprising a shared ring mirror coupled to a pair of buses by a 3 dB coupler (also referred to as a “symmetric splitter”), which is described in more detail below. Each bus is also coupled to an array of ring filters, wherein each ring filter couples an associated reflective silicon optical amplifier (RSOA) to the shared ring mirror and in doing so forms a Verniered ring pair with the shared ring mirror. The resulting system provides a comb source with redundant channels that can provide individual outputs or a shared output. This hybrid laser provides a significant improvement over existing comb-based lasers by providing redundancy for at least one laser channel.
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