CN1294682C - Multi-wavelength synchronous running continuous laser - Google Patents

Multi-wavelength synchronous running continuous laser Download PDF

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CN1294682C
CN1294682C CN 03125088 CN03125088A CN1294682C CN 1294682 C CN1294682 C CN 1294682C CN 03125088 CN03125088 CN 03125088 CN 03125088 A CN03125088 A CN 03125088A CN 1294682 C CN1294682 C CN 1294682C
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laser
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frequency
wavelength
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CN1549410A (en )
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张治国
李德华
李平雪
李春勇
傅盘铭
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中国科学院物理研究所
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Abstract

本发明公开了一种多波长同时运转的连续激光器,使用一台激光器同时实现三种基频波长的运转,进而通过倍频方式在同一台激光器上同时实现红、绿、蓝三基色激光输出。 The present invention discloses a multi-wavelength laser is a continuous run simultaneously using a laser to achieve simultaneous operation of three basic wavelength frequency, and further while achieving red, green, and blue color laser output on the same frequency by way of the laser. 当激光器实现三基频同时运转时,由泵源、光学耦合系统、激光谐振腔输入端镜、激光增益介质、激光谐振腔输出端镜组成。 When the fundamental frequency laser with three simultaneous operation, end mirror, the laser gain medium, laser cavity end mirror input output by the pump source, an optical coupling system, laser resonator composed. 增加用于基频波长倍频用的倍频晶体,激光器实现三基频与三基色同时运转。 For increasing the frequency doubling crystal with a wavelength of the fundamental frequency, the fundamental frequency of the laser to achieve the three running simultaneously three primary colors. 激光器谐振腔输入输出端镜的膜系为特殊设计,使得各激光跃迁波长的增益和损耗达到一种动态平衡状态,均能满足激光振荡的阈值条件而同时产生多波长激光输出。 Film-based input and output laser resonator mirror is specially designed so that each laser transition wavelength gain and loss to achieve a state of dynamic equilibrium conditions of the laser oscillation threshold can meet simultaneously produce multiple wavelength laser output.

Description

多波长同时运转的连续激光器 Multi-wavelength laser while running continuously

技术领域 FIELD

本发明涉及一种激光装置,尤其涉及一种二极管泵浦Nd:YAG多波长同时运转的连续激光器。 The present invention relates to a laser apparatus, particularly to a diode-pumped Nd: YAG continuous multi-wavelength laser operate simultaneously.

背景技术 Background technique

多波长激光器在精细激光光谱学、共振全息相干度量学中有着广泛的应用。 Multi-wavelength laser in a fine laser spectroscopy, resonance in metrology coherent hologram has been widely used. 若在等离子体诊断中采用多波长激光器,不仅可以增强其灵敏度和分辨率,而且可以减小测量设备的体积和尺寸。 If the multi-wavelength laser plasma diagnostics, not only can enhance the sensitivity and resolution, and can reduce the volume and size of the measurement device. 多波长激光器还能够大大增进分子的多光子离解效应,提高信息的分析和传输速率,同时还能增大雷达的探测精度。 Multiple-wavelength laser can also be greatly enhanced multiphoton dissociation of molecular effects, and improve the analysis of the transmission rate information, while increasing the detection accuracy of the radar.

近年来,随着大屏幕激光电视、激光彩色显示和激光娱乐表演的出现和发展,人们对三基色红绿蓝激光的产生又提出了迫切的需求。 In recent years, large-screen laser TV, laser color display and the emergence and development of laser entertainment, people produce the three primary colors red, green and blue laser has made an urgent need. 早期人们采用氩离子和氪离子气体激光器作为三基色光源,但这种激光器不仅体积庞大、造价昂贵,而且操作起来非常繁杂。 Early people using argon ion and krypton ion gas laser as a light source three primary colors, but the laser is not bulky, expensive, and the operation is very troublesome. 随着半导体激光器的飞速发展和产业化,二极管泵浦的全固化激光器的研发也取得了实质性的进展,并开始实现产业化。 With the rapid development and industrialization of semiconductor lasers, diode-pumped laser cure research we have also made substantial progress, and began to realize industrialization. 现在人们正使用这种紧凑高效的全固化激光器做泵源,利用非线性材料通过倍频或和频的方法研制出各种类型的红、绿、蓝激光器,其中最行之有效的当属直接倍频的红、绿、蓝激光器。 Now people are using such a compact and efficient all-solid laser as a pump source, using various types of nonlinear material developed by the process of red and frequency or frequency, green, and blue lasers, undoubtedly the most effective direct frequency of red, green and blue lasers.

目前大屏幕激光电视、激光彩色显示和激光娱乐表演所用的红、绿、蓝激光源,基本上是通过三台运转于不同基频波长的激光器通过倍频的方法分别产生的。 Large-screen television laser current, laser color display and entertainment laser used red, green and blue laser light source, essentially by three different operating wavelengths of the fundamental frequency laser produced by the process of frequency doubling respectively. 此前也有用一块晶体产生基频双波长同时输出的报道,如有用闪光灯泵浦实现脉冲1.06μm和1.32μm同时运转的报道(CGBethea,“Megawatt power at 1.318μin Nd3+:YAG and simultaneous oscillation at both1.06 and 1.318μ”,IEEE J.Quantum Electron.QE-9,(1973),P.254),也有用连续氪灯泵浦使用两个激光输出腔镜实现连续1.06μm和1.32μm同时非共轴运转的报道(VENadtocheev and OENanii,“Two-wave emission from a cwsolid-state YAG:Nd3+laser”,Sov.J.Quantum Electron.19(4),(1989),P.444),但迄今为止,尚没有二极管泵浦Nd:YAG多波长946nm,1.06μm,1.32μm同时运转连续激光器的报道,更没有二极管泵浦Nd:YAG多波长红660nm、绿532nm、蓝473nm三基色同时运转连续激光器的报道。 Also useful resulting crystals had a dual wavelengths simultaneously output baseband reported, if realization 1.06μm and 1.32μm pulse while running reports (CGBethea with flashlamp-pumped, "Megawatt power at 1.318μin Nd3 +: YAG and simultaneous oscillation at both1.06 and 1.318μ ", IEEE J.Quantum Electron.QE-9, (1973), P.254), is also useful to use two consecutive krypton lamp-pumped laser output mirrors to achieve continuous operation of 1.06μm and 1.32μm while non-coaxial reports (VENadtocheev and OENanii, "Two-wave emission from a cwsolid-state YAG: Nd3 + laser", Sov.J.Quantum Electron.19 (4), (1989), P.444), but so far, yet no diode-pumped Nd: YAG multi-wavelength 946nm, 1.06μm, 1.32μm laser simultaneous operation continuously reported and no diode-pumped Nd: YAG multi-wavelength of 660 nm of red, green and 532nm, 473nm and blue three primary colors while continuously operating lasers reported.

发明内容 SUMMARY

本发明所要解决的技术问题是使用一台激光器同时实现三种基频波长的运转,进而通过倍频方式在同一台激光器上同时实现红、绿、蓝三基色激光输出。 The present invention solves the technical problem is to use a laser while achieving three primary operating frequency wavelength, and further while achieving red, green, and blue color laser output on the same frequency by way of the laser.

为解决上述技术问题,本发明多波长同时运转的连续激光器是采用激光领域最常用的激光晶体作为激光增益介质,利用激光晶体可在三个能级跃迁4F3/2-4I9/2、4F3/2-4I11/2和4F3/2-4I13/2实现激光运转的特性,采用独特谐振腔设计,在一块激光增益介质中实现三基频激光连续同时运转,并进而通过直接倍频方法实现三基色同时共轴激光连续运转,或者实现其中的两个基频同时运转,并进而通过直接倍频方法实现其中的两个基色同时共轴激光连续运转。 To solve the above problems, the present invention is a multi-wavelength simultaneous operation of the continuous laser is a laser field of the laser crystal most commonly used as the laser gain medium with a laser crystal can transition 4F3 / 2-4I9 / 2,4F3 / 2 at three levels -4I11 / 2 and 4F3 / 2-4I13 / 2 to achieve the characteristics of the laser working, a unique resonator design, to achieve three consecutive fundamental frequency laser light in a simultaneous operation of the laser gain medium, and thus achieve the three primary colors simultaneously by a direct method of frequency doubling coaxial laser of continuous operation, or wherein the two groups to achieve simultaneous operation frequency, which in turn realized by a direct two color method of frequency coaxial laser while continuous operation.

本发明多波长同时运转连续激光器的激光增益介质包括Nd掺杂YAG激光晶体或Nd掺杂的其它激光增益介质,如YVO4、YLF、玻璃等。 Simultaneous multi-wavelength operation of the present invention, the laser gain medium comprises a Nd doped laser, continuous laser gain medium other YAG or a Nd doped laser crystal, such as YVO4, YLF, glass and the like. 如果采用Nd:YAG作为激光增益介质,对应三个能级跃迁4F3/2-4I9/2、4F3/2-4I11/2和4F3/2-4I13/2的三基频波长为946nm、1.06μm和1.32μm,三基色红绿蓝波长为660nm、532nm和473nm。 If Nd: YAG as the laser gain medium, corresponding to the three-level transition 4F3 / 2-4I9 / 2,4F3 / 2-4I11 / 2 group and three 4F3 / 2-4I13 / 2 frequency wavelength of 946nm, 1.06μm and 1.32μm, the three primary colors red, green and blue wavelength of 660nm, 532nm and 473nm.

本发明多波长同时运转连续激光器实现三基频同时运转时,由泵源、光学耦合系统、激光谐振腔输入端镜、激光增益介质、激光谐振腔输出端镜组成。 The present invention is a continuous multi-wavelength laser operate simultaneously achieve three time the fundamental frequency simultaneous operation, by the pump source, an optical coupling system, laser resonator input mirror, a laser gain medium, the output of the laser resonator mirrors. 所述的Nd搀杂的激光增益介质(4)为YAG激光晶体,能产生4F3/2-4I9/2、4F3/2-4I11/2、4F3/2-4I13/2三个能级跃迁的多条谱线,所述的三个能级跃迁基频波长分别为946nm、1.06um、1.32um,激光器谐振腔的膜系具有特殊设计,使4F3/2-4I9/2和4F3/2-4I11/2或4F3/2-4I9/2和4F3/2-4I13/2两种或4F3/2-4I9/2与4F3/2-4I11/2和4F3/2-4I13/2三种波长的光同时满足跃迁波长的增益和损耗达到平衡的振荡条件,在谐振腔内同时形成振荡并且连续输出4F3/2-4I9/2和4F3/2-4I11/2或4F3/2-4I9/2和4F3/2-4I13/2或4F3/2-4I9/2与4F3/2-4I11/2和4F3/2-4I13/2波长的激光,激光器在泵浦下同时产生连续运转的多波长连续激光输出,并通过倍频晶体实现对4F3/2-4I9/2、4F3/2-4I11/2、4F3/2-4I13/2基频光的直接倍频以得到相应的可见波长激光输出。 The Nd-doped laser gain medium (4) is a YAG crystal laser, capable of producing 4F3 / 2-4I9 / 2,4F3 / 2-4I11 / 2,4F3 / 2-4I13 / 2 a plurality of three-level transition spectrum, the fundamental frequency of the three-level transition wavelengths of 946nm, 1.06um, 1.32um, membrane-based laser cavity with a special design, 4F3 / 2-4I9 / 2 and 4F3 / 2-4I11 / 2 or 4F3 / 2-4I9 / 2 and the two kinds of light 4F3 / 2-4I13 / 2 or 4F3 / 2-4I9 / 2 and 4F3 / 2-4I11 / 2 and 4F3 / 2-4I13 / 2 transition of three wavelengths simultaneously satisfy gain and loss wavelength oscillation condition of equilibrium, the oscillation in the resonant cavity is formed simultaneously and continuously output 4F3 / 2-4I9 / 2 and 4F3 / 2-4I11 / 2 or 4F3 / 2-4I9 / 2 and 4F3 / 2-4I13 / 2 or 4F3 / 2-4I9 / 2 and 4F3 / 2-4I11 / 2 and the laser, the pump laser generates at the same time continuous operation of the continuous multi-wavelength laser output 4F3 / 2-4I13 / 2 wavelength, and by doubling crystal direct multiplication by 4F3 / 2-4I9 / 2,4F3 / 2-4I11 / 2,4F3 / 2-4I13 / 2 group to give the corresponding frequency of the light visible wavelength laser output.

本发明多波长同时运转连续激光器实现三基频与三基色同时运转时,由泵源、光学耦合系统、激光谐振腔输入端镜、激光增益介质、倍频晶体、激光谐振腔输出端镜组成。 The present invention is a continuous multi-wavelength laser operate simultaneously achieve the three basic frequency when the simultaneous operation of three primary colors, by the pump source, an optical coupling system, laser resonator input mirror, a laser gain medium, frequency doubling crystal, the output of the laser resonator mirrors. 激光器谐振腔的膜系具有特殊设计,倍频晶体是指用于4F3/2-4I9/2、4F3/2-4I11/2、4F3/2-4I13/2波长倍频用的光学晶体,包括LBO、KTP、BBO、BiBO、KNbO3和其它非线性光学晶体,可以是一块,也可以是多块,从而实现红绿蓝三基色中的单色或多色倍频激光的输出。 Film-based laser cavity with a special design, doubling crystal optical crystal means for 4F3 / 2-4I9 / 2,4F3 / 2-4I11 / 2,4F3 / 2-4I13 / 2 the wavelength of the harmonic generation, comprising LBO , KTP, BBO, BiBO, KNbO3, and other nonlinear optical crystal, may be one, or may be a plurality, in order to achieve an output of the three primary colors red, green and blue monochromatic or polychromatic laser frequency. 倍频晶体除可以放置在谐振腔腔内以外,亦可以放置在腔外,或腔内腔外同时放置。 In addition to the frequency doubling crystal may be placed outside the resonator cavity, also may be placed in the outer chamber, the outer chamber or chambers simultaneously placed.

本发明多波长同时运转连续激光器的激光谐振腔输入端镜和激光增益介质可合而为一,谐振腔型可以是线性腔型结构、折叠腔型结构。 While the present invention is a multi-wavelength laser resonator input mirror and the laser gain medium may be one continuous laser operation, a resonant cavity may be a linear cavity configuration, a folded cavity configuration.

本发明多波长同时运转连续激光器的激光谐振腔输入输出端镜的膜系为特殊设计,使得准三能级系统的4F3/2--4I9/2跃迁(波长为946nm)与其它四能级系统(波长为1.06um或1.32um)的一个或两个跃迁同时满足振荡运转的条件,即通过特殊镀膜使谐振腔的膜系满足特定的要求,使得增益高的激光跃迁波长有较高的透过率因而有较高的损耗,而增益低的激光跃迁波长有较低的透过率因而有较低的损耗,这样各激光跃迁波长的增益和损耗便达到一种动态平衡状态,均能满足激光振荡的阈值条件而同时产生多波长激光输出,进而通过倍频获得多波长可见激光输出。 The present invention is a multi-wavelength laser operate simultaneously continuous film-based laser cavity mirrors for the input and output terminal of a special design, so that the quasi-4F3 / 2--4I9 / 2 transition of the three-level system (wavelength 946nm) and the other four-level system condition (wavelength of 1.06um or 1.32um) one or two transitions simultaneously satisfying the oscillation operation, i.e., the membrane cavity resonator by special coating meet certain requirements, so that the high gain laser transition wavelength has a higher transmission Thus a higher rate of loss of the low gain of the laser transition wavelength has a lower transmittance and thus lower losses, so that each of the laser gain and the loss in transition wavelength will reach a dynamic equilibrium state, the laser can meet oscillation threshold condition while generating multi-wavelength laser output, and thus obtain a multi-wavelength visible laser output by the multiplier.

附图说明 BRIEF DESCRIPTION

下面结合附图和具体实施方式对本发明作进一步详细的说明。 The present invention will be further described in detail in conjunction with accompanying drawings and specific embodiments.

图1是本发明多波长同时运转的连续激光器实施例1的结构示意图。 FIG 1 is a simultaneous multi-wavelength operation of the present invention is a continuous laser a schematic structural diagram of the embodiment.

图2是本发明多波长同时运转的连续激光器实施例2的结构示意图。 FIG 2 is a simultaneous multi-wavelength operation of the present invention is a continuous laser schematic structural diagram of embodiment 2.

附图标记:1 二极管泵源2 光学耦合系统 Reference numerals: a diode pump source coupled to the second optical system

3 激光谐振腔输入端镜4 激光增益介质5 激光谐振腔输出端镜6 倍频晶体具体实施方式实施例1:二极管泵浦Nd:YAG双波长946nm,1.06μm同时运转连续激光器如图1所示,二极管泵源1为20瓦光纤耦合半导体激光器,其工作波长为808nm,光纤芯径为400μm,经光学耦合系统2聚焦后的光斑尺寸大约300μm,激光增益介质4为1.0at.%掺杂的Nd:YAG晶体,其尺寸为3×3×3mm3,其温度控制在17℃,在激光增益介质4的泵浦端面上直接镀膜作为激光谐振腔输入端镜3,镀膜参数可取R>99.8%@946nm,T=88%@808nm,T=12%@1.06μm,激光增益介质4的另一端面对946nm和1.06μm镀增透膜,激光谐振腔输出端镜5是曲率半径为100mm的平凹镜,其镀膜情况为R>98%@946nm,T=85%@1.06μm,谐振腔总腔长为48mm。 Example 3 laser resonator input mirror 4 laser gain medium 5 outputs a laser resonator end mirror 6 doubling crystal DETAILED DESCRIPTION Embodiment 1: diode-pumped Nd: YAG dual wavelength 946nm, 1.06μm laser operation can be continued while 1 , a diode pump source 20 watt fiber coupled semiconductor laser operating wavelength 808nm, optical fiber core diameter of 400 m, the spot size by the converging optical coupling system of about 300 m, the laser gain medium 4 is 1.0at.% doped Nd: YAG crystal having a size of 3 × 3 × 3mm3, controlling the temperature at 17 ℃, in the end face of the laser gain medium pumped as a film directly laser cavity end mirrors 4 input 3 parameters desirable coating R> 99.8% @ 946nm, T = 88% @ 808nm, T = 12% @ 1.06μm, the other end of the laser gain medium faces 4 946nm 1.06 m and AR coating, the output of the laser resonator mirror 5 is a plano-concave curvature radius of 100mm mirror coating which case R> 98% @ 946nm, T = 85% @ 1.06μm, the total cavity length of the resonator is 48mm.

用上述装置可获得基频946nm和1.06μm双波长连续激光的同时运转。 Obtained by the above operation means, and baseband 1.06μm dual wavelength 946nm CW laser simultaneously.

实施例2:二极管泵浦Nd:YAG四波长473nm,532nm,946nm,1.06μm同时运转连续激光器如图2所示,二极管泵源1为20瓦光纤耦合半导体激光器,其工作波长为808nm,光纤芯径为400μm,经光学耦合系统2聚焦后的光斑尺寸大约300μm;激光增益介质4为1.0at.%掺杂的Nd:YAG晶体,其尺寸为3×3×3mm3,其温度控制在17℃,在激光增益介质4的泵浦端面上直接镀膜作为激光谐振腔输入端镜3,镀膜参数可取R>99.8%@946nm,R>99.8%@473nm,T=88%@808nm,T=12%@1.06μm,激光增益介质4的另一端面对946nm和1.06μm镀增透膜;激光腔内放置LBO倍频晶体6,其两个端面对946nm和473nm镀增透膜,尺寸为3×3×10mm3,按I类相位匹配方式切割,切割参数可取Θ=90°,Φ=19.37°,温度控制在22±0.1℃;激光谐振腔输出端镜5是曲率半径为100mm的平凹镜,其镀膜情况为T>80%@473nm,R>98%@946nm,T=85%@1.06μm,谐 Example 2: diode-pumped Nd: YAG four wavelengths 473nm, 532nm, 946nm, 1.06μm laser shown continuously while operating, diode pump source 20 1 watt fiber coupled semiconductor laser operating wavelength 808nm, optical fiber core 2 in FIG. diameter spot size by the converging optical coupling system is approximately 400 m 300μm,; 4 laser gain medium is 1.0at% doped Nd: YAG crystal having a size of 3 × 3 × 3mm3, controlling the temperature at 17 ℃,. directly coating the laser resonator mirrors at the input end face of the laser gain medium pumped 3 4, desirable coating parameters R> 99.8% @ 946nm, R> 99.8% @ 473nm, T = 88% @ 808nm, T = 12% @ 1.06 m, and the other end face of the laser gain medium 4 946nm 1.06 m and AR coating; LBO doubling crystal is placed within the laser cavity 6, facing its two ends 946nm and 473nm AR coating, a size of 3 × 3 × 10mm3, class I phase matching by way of cutting, cutting parameters preferably Θ = 90 °, Φ = 19.37 °, the temperature controlled at 22 ± 0.1 ℃; the output of a laser resonator mirror 5 is 100mm radius of curvature of the plano-concave mirror, which coating case T> 80% @ 473nm, R> 98% @ 946nm, T = 85% @ 1.06μm, harmonic 腔总腔长为48mm。 The total cavity length of a cavity 48mm. 激光腔外放置KTP倍频晶体6对1.06μm进行倍频以得到532nm的倍频绿光。 KTP frequency doubling crystal is placed outside the laser cavity for six pairs of 1.06μm to obtain frequency doubling of 532nm green.

用上述装置可获得倍频蓝光473nm和绿光532nm以及基频946nm和1.06μm四波长连续激光的同时运转。 The operation frequency obtained by the above blue light and green light means 473nm 946nm and 532nm and a baseband continuous laser wavelength of 1.06μm four simultaneously.

实施例3:二极管泵浦Nd:YAG三波长1.32μm,1.06μm,946nm同时运转连续激光器如图1所示,二极管泵源1为20瓦光纤耦合半导体激光器,其工作波长为808nm,光纤芯径为400μm,经光学耦合系统2聚焦后的光斑尺寸大约300μm,激光增益介质4为1.0at.%掺杂的Nd:YAG晶体,其尺寸为3×3×3mm3,其温度控制在17℃,在激光增益介质4的泵浦端面上直接镀膜作为激光谐振腔输入端镜3,激光增益介质4的另一端面对1.32μm、1.06μm和946nm镀增透膜,激光谐振腔输出端镜5用曲率半径为100mm的平凹镜,谐振腔的镀膜满足基频1.32μm、1.06μm和946nm三波长同时运转的条件。 Example 3: diode-pumped Nd: YAG three-wavelength 1.32μm, 1.06μm, 946nm continuous laser simultaneous operation shown in Figure 1, the diode pump source 20 1 watt fiber coupled semiconductor laser operating wavelength 808nm, optical fiber core diameter is 400 m, the spot size by the converging optical coupling system of about 300 m, the laser gain medium 4 is 1.0at% doped Nd:. YAG crystal having dimensions of 3 × 3 × 3mm3, controlling the temperature at 17 ℃, in an end face of the laser gain medium pumped directly coating 4 as input laser cavity end mirror 3, the laser gain medium and the other end 4 facing 1.32μm, 1.06μm and 946nm AR coating, the output of the laser resonator mirrors with a curvature 5 plano-concave mirror radius of 100mm, to meet the base film resonator frequency 1.32μm, 1.06μm conditions and simultaneous operation of three-wavelength 946nm.

用上述装置可获得基频1.32μm、1.06μm和946nm三波长连续激光的同时运转。 Obtained by the above-described baseband apparatus 1.32μm, 1.06μm and simultaneous operation of three-wavelength 946nm CW laser.

实施例4:二极管泵浦Nd:YAG六波长1.32μm,1.06μm,946nm及其倍频光660nm,532nm,473nm同时运转连续激光器如图2所示,二极管泵源1为20瓦光纤耦合半导体激光器,其工作波长为808nm,光纤芯径为400μm,经光学耦合系统2聚焦后的光斑尺寸大约300μm,激光增益介质4为1.0at.%掺杂的Nd:YAG晶体,其尺寸为3×3×3mm3,其温度控制在17℃,在激光增益介质4的泵浦端面上直接镀膜作为激光谐振腔输入端镜3,激光增益介质4的另一端面对1.32μm、1.06μm和946nm镀增透膜,激光谐振腔输出端镜5用曲率半径为100mm的平凹镜,谐振腔的镀膜应满足基频1.32μm、1.06μm和946nm三波长同时运转的条件。 Example 4: diode-pumped Nd: YAG six wavelength 1.32μm, 1.06μm, and the frequency doubled light 660nm 946nm, 532nm, 473nm continuous laser operation while Figure 2, a diode pump source 20 watt fiber coupled semiconductor laser its operating wavelength 808nm, optical fiber core diameter of 400 m, the spot size by the converging optical coupling system of about 300 m, the laser gain medium 4 is 1.0at% doped Nd:. YAG crystal having dimensions of 3 × 3 × 3mm3, which is temperature controlled at 17 ℃, in the end face of the laser gain medium pumped as a film directly laser cavity end mirrors 4 input 3, the other end of the laser gain medium 4 facing 1.32μm, 1.06μm and 946nm AR coating , the output of the laser resonator mirrors with a radius of curvature of 5 plano-concave mirror, the resonator 100mm film should satisfy the fundamental frequency 1.32μm, 1.06μm conditions and simultaneous operation of three-wavelength 946nm. 谐振腔内放置LBO晶体对946nm进行腔内倍频以获得473nm蓝光,在激光腔外放置KTP倍频晶体6对1.06μm进行倍频以得到532nm的倍频绿光,在腔内或腔外放置另一块LBO倍频晶体6对1.32μm倍频以获得660nm红光。 LBO crystal resonator placed intracavity frequency doubling of 946nm 473nm to obtain a blue, KTP frequency doubling crystal is placed outside the chamber 6 to 1.06μm laser frequency doubling of 532nm to obtain a green multiplier, placed outside the cavity or chamber another six pairs of an LBO doubling crystal frequency to obtain a 660nm red 1.32μm.

用上述装置可获得红光660nm、绿光532nm、蓝光473nm及其基频光1.32μm、1.06μm和946nm六波长连续激光的同时运转。 660nm red light can be obtained by the above means, green 532nm, 473nm and blue light baseband 1.32μm, 1.06μm and simultaneous operation of six wavelength 946nm CW laser.

Claims (16)

  1. 1.一种多波长同时运转的连续激光器,包括泵源(1)、光学耦合系统(2)、激光谐振腔输入端镜(3)、Nd搀杂的激光增益介质(4)、激光谐振腔输出端镜(5),其特征在于:所述的Nd搀杂的激光增益介质(4)为YAG激光晶体,能产生4F3/2-4I9/2、4F3/2-4I11/2、4F3/2-4I13/2三个能级跃迁的多条谱线,所述的三个能级跃迁基频波长分别为946nm、1.06um、1.32um,激光器谐振腔的膜系具有特殊设计,使4F3/2-4I9/2和4F3/2-4I11/2或4F3/2-4I9/2和4F3/2-4I13/2两种波长或4F3/2-4I9/2与4F3/2-4I11/2和4F3/2-4I13/2三种波长的光同时满足跃迁波长的增益和损耗达到平衡的振荡条件,在谐振腔内同时形成振荡并且输出多种波长的激光,激光器在泵浦下同时产生连续运转的多波长连续激光输出,并通过倍频晶体实现对基频光的直接倍频以得到相应的可见波长激光输出。 1. A multi-wavelength simultaneous operation of continuous laser comprising a pump source (1), an optical coupling system (2), the laser cavity input mirror (3), Nd doped laser gain medium (4), the output of the laser resonator end mirror (5), characterized in that: the Nd doped laser gain medium (4) is a YAG crystal laser, capable of producing 4F3 / 2-4I9 / 2,4F3 / 2-4I11 / 2,4F3 / 2-4I13 / 2 a plurality of three-level transition line, the three baseband level transition wavelengths of 946nm, 1.06um, 1.32um, membrane-based laser cavity with a special design, 4F3 / 2-4I9 / 2 and 4F3 / 2-4I11 / 2 or 4F3 / 2-4I9 / 2 and 4F3 / 2-4I13 / 2 two wavelengths or 4F3 / 2-4I9 / 2 and 4F3 / 2-4I11 / 2 and 4F3 / 2- three wavelengths of light 4I13 / 2 transition meet the gain and loss in the wavelength oscillation condition of equilibrium, while the resonant cavity is formed and the oscillation output of the laser a plurality of wavelengths, the multi-wavelength laser generates continuous operation time under continuous pumping laser output, direct frequency doubling crystal and the fundamental frequency of the light through to give the corresponding visible wavelength laser output.
  2. 2.按照权利要求1所述的激光器,其特征在于:在激光泵浦下同时产生运转于4F3/2-4I9/2和4F3/2-4I11/2或4F3/2-4I9/2和4F3/2-4I13/2的基频光双波长连续激光输出。 2. The laser according to claim 1, wherein: at the same time generating pumping laser to operate at 4F3 / 2-4I9 / 2 and 4F3 / 2-4I11 / 2 or 4F3 / 2-4I9 / 2 and 4F3 / yl 2-4I13 / 2 dual wavelength continuous optical frequency laser output.
  3. 3.按照权利要求1所述的激光器,其特征在于:在激光泵浦下同时产生运转于4F3/2-4I9/2与4F3/2-4I11/2和4F3/2-4I13/2的基频光多波长连续激光输出。 3. A laser according to claim 1, wherein: at the same time generating pumping laser to operate at 4F3 / 2-4I9 / 2 and the base 4F3 / 2-4I11 / 2 and 4F3 / 2-4I13 / 2 frequency continuous multi-wavelength laser output light.
  4. 4.按照权利要求1所述的激光器,其特征在于:可以放置用于4F3/2-4I9/2、4F3/2-4I11/2、4F3/2-4I13/2基频光波长倍频用的倍频晶体(6)。 4. The laser according to claim 1, characterized in that: can be placed for 4F3 / 2-4I9 / 2,4F3 / 2-4I11 / 2,4F3 / 2-4I13 / 2 frequency fundamental light with a wavelength frequency doubling crystal (6).
  5. 5.按照权利要求4所述的激光器,其特征在于:倍频晶体(6)包括LBO、KTP、BBO、BiBO、KNbO3和其它非线性光学晶体。 5. A laser according to claim 4, wherein: the frequency doubling crystal (6) comprises LBO, KTP, BBO, BiBO, KNbO3, and other nonlinear optical crystal.
  6. 6.按照权利要求5所述的激光器,其特征在于:倍频晶体(6)是一块或多块倍频用的光学晶体,其位置可放置在谐振腔内、放置在腔外或者腔内腔外同时放置。 6. The laser as claimed in claim 5, wherein: the frequency doubling crystal (6) is an optical frequency doubling crystal with one or more blocks, which can be placed in position inside the cavity, placed outside the cavity or chamber cavity placed outside at the same time.
  7. 7.按照权利要求6所述的激光器,其特征在于:放置对4F3/2-4I9/2基频光倍频的倍频晶体(6),在激光泵浦下同时产生连续运转的4F3/2-4I9/2、4F3/2-4I11/2基频光和蓝光多波长连续激光输出。 7. The laser according to claim 6, wherein: the frequency doubling crystal (6) is placed on the 4F3 / 2-4I9 / 2 of the fundamental light frequency, generating continuous operation 4F3 / 2 while the laser pumping -4I9 / 2,4F3 / 2-4I11 / 2 fundamental and blue continuous multi-wavelength laser output.
  8. 8.按照权利要求6所述的激光器,其特征在于:放置对4F3/2-4I11/2基频光倍频的倍频晶体(6),在激光泵浦下同时产生连续运转的4F3/2-4I9/2、4F3/2-4I11/2基频光和绿光多波长连续激光输出。 8. The laser according to claim 6, wherein: the frequency doubling crystal (6) is placed on the 4F3 / 2-4I11 / 2 of the fundamental light frequency, generating continuous operation 4F3 / 2 while the laser pumping -4I9 / 2,4F3 / 2-4I11 / 2 fundamental and green continuous multi-wavelength laser output.
  9. 9.按照权利要求6所述的激光器,其特征在于:放置对4F3/2-4I9/2基频光倍频的倍频晶体(6),在激光泵浦下同时产生连续运转的4F3/2-4I9/2、4F3/2-4I13/2基频光和蓝光多波长连续激光输出。 9. The laser according to claim 6, wherein: the frequency doubling crystal (6) is placed on the 4F3 / 2-4I9 / 2 of the fundamental light frequency, generating continuous operation 4F3 / 2 while the laser pumping -4I9 / 2,4F3 / 2-4I13 / 2 fundamental and blue continuous multi-wavelength laser output.
  10. 10.按照权利要求6所述的激光器,其特征在于:放置对4F3/2-4I13/2基频光倍频的倍频晶体(6),在激光泵浦下同时产生连续运转的4F3/2-4I9/2、4F3/2-4I13/2基频光和红光多波长连续激光输出。 10. The laser according to claim 6, wherein: the frequency doubling crystal (6) is placed on the 4F3 / 2-4I13 / 2 of the fundamental light frequency, generating continuous operation 4F3 / 2 while the laser pumping -4I9 / 2,4F3 / 2-4I13 / 2 baseband continuous multi-wavelength light and red laser output.
  11. 11.按照权利要求6所述的激光器,其特征在于:放置对4F3/2-4I13/2和4F3/2-4I9/2基频光倍频的倍频晶体(6),在激光泵浦下同时产生连续运转的4F3/2-4I13/2、4F3/2-4I9/2基频光和红光、蓝光多波长连续激光输出。 11. The laser according to claim 6, wherein: the frequency doubling crystal is placed (6) 4F3 / 2-4I13 / 2 and 4F3 / 2-4I9 / 2 of the fundamental light frequency, laser pumping in while producing 4F3 / 2-4I13 / 2,4F3 / 2-4I9 / 2 fundamental and red, blue, continuous multi-wavelength laser output of the continuous operation.
  12. 12.按照权利要求6所述的激光器,其特征在于:放置对4F3/2-4I11/2和4F3/2-4I9/2基频光倍频的倍频晶体(6),在激光泵浦下同时产生连续运转的4F3/2-4I11/2、4F3/2-4I9/2基频光和绿光、蓝光多波长连续激光输出。 12. The laser according to claim 6, wherein: the frequency doubling crystal is placed (6) 4F3 / 2-4I11 / 2 and 4F3 / 2-4I9 / 2 of the fundamental light frequency, laser pumping in while producing 4F3 / 2-4I11 / 2,4F3 / 2-4I9 / 2-yl continuous operation frequency and green light, blue light of continuous multi-wavelength laser output.
  13. 13.按照权利要求6所述的激光器,其特征在于:放置对4F3/2-4I13/2、4F3/2-4I11/2和4F3/2-4I9/2基频光倍频的倍频晶体(6),在激光泵浦下同时产生连续运转的4F3/2-4I13/2、4F3/2-4I11/2、4F3/2-4I9/2基频光和红光、绿光、蓝光多波长连续激光输出。 13. The laser according to claim 6, wherein: the frequency doubling crystal is placed on the 4F3 / 2-4I13 / 2,4F3 / 2-4I11 / 2 and 4F3 / 2-4I9 / 2 of the fundamental light frequency ( 6), to produce 4F3 / 2-4I13 / 2,4F3 / 2-4I11 / 2,4F3 / 2-4I9 / 2 fundamental and red, green, blue continuous operation while multi-wavelength laser pumping in a continuous laser output.
  14. 14.按照权利要求6所述的激光器,其特征在于:放置对4F3/2-4I13/2、4F3/2-4I11/2和4F3/2-4I9/2中的一种或两种基频光倍频的倍频晶体(6),在激光泵浦下同时产生连续运转的4F3/2-4I13/2、4F3/2-4I11/2、4F3/2-4I9/2基频光以及红光、绿光、蓝光中的一种或两种倍频光的多波长连续激光输出。 14. The laser according to claim 6, wherein: the placing of the 4F3 / 2-4I13 / 2,4F3 / 2-4I11 / 2 and 4F3 / 2-4I9 / 2 one or two fundamental light frequency multiplier crystal (6), while producing continuous operation 4F3 / 2-4I13 / 2,4F3 / 2-4I11 / 2,4F3 / 2-4I9 / 2 and a red light at the fundamental frequency of the pump laser, green, continuous multi-wavelength blue laser output of one or both of the frequency doubled light.
  15. 15.按照权利要求1至14中任何一项所述的激光器,其特征在于:激光增益介质(4)包括Nd单掺杂的其它激光增益介质YVO4、YLF、玻璃。 15. A according to claim 1 to any one of the laser 14, characterized in that: the laser gain medium (4) comprises a YVO4, YLF, Nd glass doped with other single laser gain medium.
  16. 16.按照权利要求1至14中任何一项所述的激光器,其特征在于:其谐振腔结构包括线性、折叠。 16. A according to claim 1 to 14 in any of a laser, comprising: a resonator structure which includes a linear, folded.
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