CN1295559C - Ultrashort chirp pulse photon crystal optical parameter amplifying device - Google Patents

Ultrashort chirp pulse photon crystal optical parameter amplifying device Download PDF

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CN1295559C
CN1295559C CN 200410084271 CN200410084271A CN1295559C CN 1295559 C CN1295559 C CN 1295559C CN 200410084271 CN200410084271 CN 200410084271 CN 200410084271 A CN200410084271 A CN 200410084271A CN 1295559 C CN1295559 C CN 1295559C
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optical
chirp
device
pulse
amplifying
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CN1603931A (en )
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金石琦
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中国科学院上海光学精密机械研究所
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Abstract

一种超短啁啾脉冲光子晶体光学参量放大装置,其特点是该装置最核心的元件是一三维光子晶体,进入该三维光子晶体的信号光路的光学元件依次是信号光源、第一脉冲发生器、光准直元件、起偏元件、第一展宽器和耦合元件;隔离器和分光元件位于所述的三维光子晶体之后,进入所述的三维光子晶体的另一泵浦光路的光学元件沿泵浦光的前进方向依次是泵浦光激光器、第二脉冲发生器、起偏器、第二展宽器和整形器;隔离器之后是分光元件和压缩器,压缩器之后是信号光接收装置。 One kind of ultrashort pulse chirped photonic crystal optical parametric amplifying device, which is characterized by the core member the device is a three-dimensional photonic crystal, the optical element into the optical signal path of the three-dimensional photonic crystal light signal is sequentially, first pulse generator light-collimating element, polarizer element, a first coupling element and the stretcher; after the spacer element and the beam in said three-dimensional photonic crystal, the other three-dimensional photonic crystal into the light path of the pumping element along the optical pump traveling direction of the light sequentially pump is the pump laser light, a second pulse generator, a polarizer, and a second stretcher shaper; after isolator is a spectroscopic element and a compressor, the compressor is a signal after the light receiving means. 本发明具有结构简单,容易操作和泵浦效率高的特点。 The present invention has simple structure, easy operation and high pumping efficiency.

Description

超短啁啾脉冲光子晶体光学参量放大装置 Ultrashort pulse chirped photonic crystal optical parametric amplification means

技术领域 FIELD

本发明是一种超短啁啾脉冲光子晶体光学参量放大装置。 The present invention is an ultrashort pulse chirped photonic crystal optical parametric amplification means. 主要按照可控制方式发生非线性变化的光学系统来放大超短啁啾脉冲波长信号光。 The optical system mainly nonlinear changes controllably amplifying ultrashort pulsed chirped signal light wavelength.

背景技术 Background technique

已有技术中美国普林泽麦斯劳.彼.马克维兹(Przemyslaw.P.Markowicz)等人在“三维光子晶体中强势增加产生三次谐波”(Dramatic Enhancement of Third-harmonic Generation inThree-Dimensional photonic crystals)[Physical Review LettersVol.92,No.8(2004)]一文中论述了关于光在三维光子晶体中产生三次谐波的理论和特性研究,为提供一种放大超短啁啾脉冲光子晶体光学参量放大装置奠定了理论基础。 U.S. 普林泽麦斯 prior art workers. He. Markowitz (Przemyslaw.P.Markowicz) et al., "Three-dimensional photonic crystal in a strong increase in the third harmonic generation" (Dramatic Enhancement of Third-harmonic Generation inThree-Dimensional photonic crystals) [Physical Review LettersVol.92, No.8 (2004)] discusses an article on light generation characteristics of the third harmonic and theoretical studies in the three-dimensional photonic crystal, to provide a chirped pulse amplification ultrashort photonic crystal the optical parametric amplification means theoretical foundation.

发明内容 SUMMARY

本发明的目的是提供一种超短啁啾脉冲光子晶体光学参量放大装置,利用信号光经脉冲发生器产生脉冲可调制信号光,将其展宽后在三维光子晶体中传播的非线性效应进行行波放大,再对展宽放大的脉冲进行压缩,实现超短啁啾脉冲信号光的放大。 Object of the present invention is to provide a photonic crystal ultrashort optical parametric chirped pulse amplification means using the signal light may be a pulse generator generating a pulse modulated signal light, after which the nonlinear effect broadening propagation in a three dimensional photonic crystal for row wave amplification, then amplified to pulse broadening compression to achieve ultrashort chirped pulse amplification of the signal light. 该装置应具有结构简单,容易操作和泵浦效率高的特点。 The apparatus should have a simple structure, easy operation and high pumping efficiency.

本发明的技术解决方案如下:一种超短啁啾脉冲光子晶体光学参量放大装置,其特点是该装置最核心的元件是一三维光子晶体,进入该三维光子晶体的信号光路的光学元件依次是信号光源、第一脉冲发生器、光准直元件、起偏元件、第一展宽器和耦合元件;隔离器和分光元件位于所述的三维光子晶体之后,进入所述的三维光子晶体的另一泵浦光路的光学元件沿泵浦光的前进方向依次是泵浦光激光器、第二脉冲发生器、起偏器、第二展宽器和整形器;所述的隔离器之后是所述的分光元件和压缩器,压缩器之后是信号光接收装置,而且进入所述三维光子晶体的泵浦光脉冲展宽的脉宽大于信号光脉冲展宽的脉宽,泵浦光脉冲全部包络信号光脉冲。 Technical Solution The present invention is as follows: A ultrashort pulse chirped photonic crystal optical parametric amplifying device, which is characterized by the core member the device is a three-dimensional photonic crystal, the optical element into the optical signal path of the three-dimensional photonic crystal is sequentially signal source, a first pulse generator, light-collimating element, polarizer element, a first coupling element and the stretcher; after the spacer element and the beam in said three-dimensional photonic crystal, into another of the three-dimensional photonic crystals advancing direction of the optical element along the optical path of pumping light sequentially pump is the pump laser light, a second pulse generator, a polarizer, and a second stretcher shaper; after said separator is the spectral element and a compressor, then the compressor is a signal light receiving means and said pump light pulse stretcher into the three-dimensional photonic crystal is larger than the width of the pulse width of the signal optical pulse broadening, all the pump light pulse envelope signal optical pulse.

所述的信号光源是激光器,该激光器和泵浦光激光器为光纤固体激光器,或半导体激光器。 Said signal light source is a laser, the pump laser and the optical fiber laser is a solid laser or a semiconductor laser.

所述的所说的第一脉冲发生器和第二脉冲发生器是电光调制的脉冲发生器。 Said pulse generator of said first and second electro-optical modulator is a pulse generator of the pulse generator.

所述的起偏元件和起偏器为尼克耳棱镜,或偏振片,或渥拉斯顿棱镜。 The polarizer and the polarizer element to Nicol prisms, or a polarizing plate or a Wollaston prism. 所述的光准直元件是由半凸球面透镜构成的。 The light-collimating element is a semi-spherical convex lenses.

所述的第一展宽器和第二展宽器的结构相同,主要由闪耀光栅、凸面反射镜和凹面反射镜构成,其光路是输入光经闪耀光栅反射、凹面反射镜反射、凸面反射镜反射、再经凹面反射镜反射而输出。 The same structure as said first stretcher and the second stretcher, mainly composed of blazed grating, a convex mirror and a concave mirror, whose optical path is the input light is blazed grating reflector, the concave reflecting mirror, a convex reflecting mirror, and then outputs the concave reflecting mirror.

所述的耦合元件是微光学透镜构成的。 Said coupling element is a micro-optical lenses.

所述的三维光子晶体是在三维光子晶体衬底上布设若干三维光子晶体点构成的。 The three-dimensional photonic crystals are laid a plurality of three-dimensional photonic crystal composed of points on the three-dimensional photonic crystal substrate.

所述的三维光子晶体点是由玻璃内掺杂,或是石英掺杂材料组成,三维光子晶体点的折射率大于三维光子晶体衬底,掺杂的元素是镱、铒稀有元素,所述的三维光子晶体点呈球体形、立方体形、长方体形、菱体形、多面体形或曲线体形;三维光子晶体点之间的排列呈菱形、方形、矩形或多边形。 The three-dimensional photonic crystal is doped with point glass, or quartz doped material, the refractive index of the three-dimensional photonic crystal three-dimensional photonic crystal point is greater than the substrate, the doping element is ytterbium, erbium rare elements, said form a three-dimensional photonic crystal ball point shape, a cube, cuboid, diamond shape, or polyhedral shape curve; three-dimensional photonic crystal arranged between the point of the diamond-shaped, square, rectangular or polygonal.

上述的隔离器是磁光隔离器。 The above-described magneto-optical isolator is a spacer.

上述的分光元件为平面透射光栅,或透射闪耀光栅,或透射凹面光栅。 Above the plane of the spectral element is a transmission grating or a transmission grating blazed, concave grating or a transmission.

上述的反射元件为平面反射镜,或凹面反射镜。 The above-described reflection element is a plane mirror or a concave mirror.

所述的接收装置为CCD二极管列阵探测器,或光电二极管,或光电倍增管,可多通道板,或示波器,或计算机。 Said receiving means is a CCD diode array detector, or photodiode, or a photomultiplier tube, multichannel plate can, or an oscilloscope, or a computer.

所述的整形器为光阑或透镜。 The shaper is a lens or diaphragm.

本发明的超短啁啾脉冲光子晶体光学参量放大装置的优点:1、使用本发明的超短啁啾脉冲光子晶体光学参量放大装置可实现超短脉冲啁啾波长信号光的放大;2、泵浦的效率高. Advantages of ultrashort pulses chirped photonic crystal optical parametric amplifying device according to the present invention: a photonic crystal optical parametric ultrashort chirped pulse amplification device using the present invention may be implemented ultrashort pulse amplifying signal light wavelength chirp; 2, pump high pump efficiency.

附图说明 BRIEF DESCRIPTION

图1是本发明超短啁啾脉冲光子晶体光学参量放大装置最佳实施例结构示意图。 FIG 1 is a ultrashort pulse chirped photonic crystal optical parametric amplification of the present invention shows a structure of the preferred embodiment apparatus.

图2是图1中展宽器5的结构示意图。 FIG 2 is a block diagram of the stretcher 1 to 5.

图3是图1中A_A剖面结构示意图。 3 is a schematic cross-sectional view of the structure of FIG. 1 A_A.

图4是图1中B_B剖面结构示意图。 FIG 4 is a schematic cross-sectional structural view B_B 1.

图5是图1中压缩器10的结构示意图。 FIG 5 is a block schematic diagram of the compressor 10 1.

图6是图1中第二展宽器13的结构示意图。 FIG 6 is a schematic structural diagram of a second 13 stretchers.

图中:1-信号光源 2-第一脉冲发生器 3-光准直元件4-起偏元件 5-第一展宽器 501-闪耀光栅 502-凸面反射镜503-凹面反射镜 6-耦合元件 7-三维光子晶体 701-三维光子晶体衬底 702-三维光子晶体点 8-隔离器 9-分光元件 10-压缩器 1001-凹面闪耀光栅 1002-凹面反射镜11-接收装置 12-整形器 13-第二展宽器 1301-闪耀光栅1302-凸面反射镜 303、凹面反射镜 14-起偏器 15-第二脉冲发生器 16-泵浦光激光器具体实施方式:先请参阅图1,图1是本发明超短啁啾脉冲光子晶体光学参量放大装置最佳实施例的结构示意图,由图可见,本发明超短啁啾脉冲光子晶体光学参量放大装置,包括,最核心的元件为三维光子晶体7,隔离器8和分光元件9位于三维光子晶体7之后,耦合元件6和展宽器5及起偏元件4置于三维晶体光子7之前,准直光元件3置于起 REFERENCE NUMERALS 1: first pulse generator signal light 2- 3- 4- light collimating element is a first polarizer element stretcher 5- blazed 502- 501- 503- convex mirror concave mirror element coupled 6- 7 - three-dimensional photonic crystal 701- 702- dimensional photonic crystal substrate three-dimensional photonic crystal dot spacer 8- 9- 10- spectral element concave blazed grating compressor 1001 1002 concave mirror 13 - 11- 12- shaper receiving means two stretcher 1301- 1302- blazed grating convex mirror 303, concave mirror polariser 14- 15 16- second pulse generator pumping light laser DETAILED DESCRIPTION: Referring to FIG. 1 to FIG. 1 of the present invention is schematic structural diagram of ultrashort pulse chirped photonic crystal optical parametric amplification preferred embodiment of the apparatus, seen from the figure, ultrashort pulse chirped photonic crystal optical parametric amplification device according to the present invention, comprises the core of a three-dimensional photonic crystal element 7, the spacer 8 and the beam splitter element 9 located after the three-dimensional photonic crystal 7, the coupling element 6 and the stretcher 5, and a polarizer element 4 is placed before the three-dimensional photonic crystal 7, the collimated light from member 3 is placed 元件4之前,置于准直光元件3的入射面之前是脉冲发生器2和信号光源1,置于三维光子晶体7的侧面另一路光学元件是整形器12,展宽器13位于整形器12之前,起偏14位于展宽器13之前,起偏器14之前是脉冲发生器15和泵浦光激光器16,隔离器8之后是分光元件9和压缩器10,压缩器10之后是被放大的信号光接收装置11。 Preceding an element 4, placed in the collimated light element 2 and the signal generator is a pulse light source 1, the three-dimensional photonic crystal placed optical element side of the other passage 7 is a shaper 12, stretcher 13 positioned before the incident surface 3 before shaper 12 , the polarizer 14 is located before the stretcher 13, a pulse generator 15 and the pump 16 before the laser light polarizer 14, a beam splitter 8 after the spacer element 9 and the compressor 10, the compressed optical signal 10 is then amplified the receiving apparatus 11.

所说的信号光源1是激光器可为光纤固体激光器,或半导体激光器,泵浦光激光器16是激光二极管,信号光源1发射的光入射到脉冲发生器2上产生脉冲信号光射入准直光元件3,经准直光元件3出射的脉冲信号光被起偏元件4起偏变成线偏振光,该线偏振光入射到展宽器5而被展宽,展宽后的脉冲信号光入射到耦合元件6上,经耦合元件6耦合后的光射入三维光子晶体7内,泵浦光由激光器16出射经脉冲脉冲发生器15产生脉冲泵浦光后进入起偏器14起偏成线偏振光,再经展宽器13展宽后进入整形器12整成所需要的光斑形状后从侧面入射到三维光子晶体7内,泵浦光与信号光在三维光子晶体内耦合被放大之后经隔离器8射入分光元件9,分光元件9将闲置光分离出去后把被放大的信号光送进压缩器10内,压缩器10将信号光压缩成超短脉冲光后入射到信号光的接收装置11上。 Said signal light source 1 is a laser fiber may be a solid laser or a semiconductor laser, the pump laser 16 is a laser diode light, a signal light source emitting light is incident to a pulse signal the pulse generator 2 on the light incident collimated light element 3, the collimated light receiving element 3 emitted pulse light polarizer element 4 polarizer becomes linearly polarized light, the linearly polarized light incident on the stretcher 5 is broadened, the pulse signal broadening the light incident on the coupling element 6 after, 7, the pump light generated by the pulsed pump light 16 emitted by the laser pulse of the pulse generator 15 is coupled enters the three-dimensional photonic crystal optical element after the coupling 6 enters the polarizer 14 into linearly polarized light of the polarizer, and then within after stretcher 13 show enters the spot shape shaper 12 whole into a desired post width is incident from the side to the three-dimensional photonic crystal 7, the pump light and the signal light is coupled isolator 8 is incident on beam splitter after being amplified by the three-dimensional photonic crystal element 9, a light splitting element 9 will be idle after the separated signal light amplified within the feed compressor 10, the compressed signal receiving apparatus 10 after compressed into light ultrashort pulse light is incident on the signal light 11.

所说的构成信号光源1和泵浦光源16是光纤固体激光器,或半导体激光器。 Constituting said signal light source 1 and the optical pump light source 16 is a solid laser or a semiconductor laser.

所说的第一脉冲发生器2和第二脉冲发生器15是电光调制的脉冲发生器。 Said first pulse generator 2 and second pulse generator 15 is an electro-optic modulation pulse generator.

所说的起偏元件4和起偏器14为尼克耳棱镜,或偏振片,或渥拉斯顿棱镜。 He said polarizer element 4 and the polarizer 14 to Nicol prisms, or a polarizing plate or a Wollaston prism.

所说的准直光元件3是由半凸球面透镜构成的。 Said light receiving element 3 is collimated by a semi-spherical convex lenses.

所说的展宽器5主要包括闪耀光栅501,凸面反射镜502和凹面反射镜503,如图2所示。 5 of said stretcher includes a blazed grating 501, a convex mirror 502 and concave mirror 503, as shown in FIG.

所说的耦合元件6是由微光学透镜构成的。 He said coupling element 6 is constituted by a micro-optical lens.

所说的三维光子晶体7是由玻璃,或是由石英构成的,三维光子晶体横截面如图3和4所示,三维光子晶体衬底701上是三维光子晶体点702,三维光子晶体点702呈球体形,立方体形,长方体形,菱体形,多面体形和曲线体形;702之间的排列呈菱形,方形,矩形和多边形。 Said three-dimensional photonic crystal 7 made of glass, or the three-dimensional photonic crystal made of quartz cross section shown in FIGS. 3 and 4, the three-dimensional photonic crystal substrate 701 is a three-dimensional photonic crystal point 702, point 702 three-dimensional photonic crystal It was ball shape, a cube, cuboid, diamond shape, polyhedral shape and a curved shape; 702 arranged between the diamond-shaped, square, rectangular and polygonal. 三维光子晶体点702是由玻璃内掺杂,或是石英掺杂材料组成,三维光子晶体点702多的折射率大于三维光子晶体衬底701,掺杂的元素是镱、铒等稀有元素。 Point 702 is a three-dimensional photonic crystal doped with a glass, or quartz doped material, three-dimensional photonic crystal is larger than a refractive index of more than 702 points three-dimensional photonic crystal substrate 701, an element is doped ytterbium, erbium and other rare elements.

所说的分光元件9是平面透射光栅,或是透射闪耀光栅,或是透射凹面光栅构成的。 9 is a spectral element of said planar transmission grating, blazed grating or transmission, or a transmission grating concave configuration.

所说的压缩器10主要包括凹面闪耀光栅1001,凹面反射镜1002,如图5所示。 Said compressor 10 includes a concave blazed grating 1001, a concave mirror 1002, as shown in FIG.

所说的接收装置11是CCD二极管列阵探测器,或者是光电二极管,或者是光电倍增管,或者是多通道板,或是示波器,或者是计算机。 It said receiving means 11 is a CCD diode array detector, or a photodiode or photomultiplier tube, or a multi-channel plate, or oscilloscope, or a computer.

所说的整形器12是由光阑、透镜构成的。 It said shaper 12 is a stop, the lens configuration.

所说的泵浦光路上的第二展宽器13主要包括闪耀光栅1301,凸面反射镜1302和凹面反射镜1303,如图6所示。 He said second pump light path stretcher 13 includes a blazed grating 1301, convex mirror and concave mirror 1302 1303, as shown in FIG.

本发明的超短啁啾脉冲光子晶体光学参量放大装置工作过程是:当信号光经脉冲发生器2产生脉冲信号光后经准直光元件3调整成平行光后进入起偏元件4变成平行偏振光,该平行偏振光由第一展宽器5将脉冲展宽,展宽的脉冲存在色散形成啁啾脉冲,展宽了的啁啾脉冲被耦合元件6耦合到三维光子晶体7内,另一路泵浦光由泵浦光激光器发出的光经第二脉冲发生器15产生脉冲泵浦光直入起偏器14后变成线偏振光再经第二展宽器13展宽,泵浦光脉冲展宽的脉宽要大于信号脉冲光的脉宽,在三维光子晶体7内,泵浦光经整形器12整成所需的光斑形状,从三维光子晶体7的侧面进入三维光子晶体7内,泵浦光脉冲要全部包络信号光脉冲,信号光Is与泵浦光Ip在三维光子晶体7内相遇时,由于非线性耦合效应,使信号光Is被放大,由三维光子晶体7放大输出两种光,一种是被 Ultrashort pulse chirped photonic crystal optical parametric amplification device according to the present invention the working procedure is: when the signal light is a pulse generator 2 generates a pulse signal light element 3 by adjusting the collimated light into parallel light enters the polarizer element 4 becomes parallel chirped pulse polarized by the first polarization parallel to the stretcher 5 pulse stretcher, stretched pulses chirped pulses is present dispersion is formed, the broadening of the coupling member 6 is coupled to the three-dimensional photonic crystal 7, another way pump light light is emitted by the second pulse generator 15 generates pump light laser pulsed pump light from the linear polarized light into linearly polarizer 14 and then through the second broadening stretcher 13, the pump optical pulse width broadening greater than pulse width of the pulsed light signal, in the three-dimensional photonic crystal 7, the pump light 12 through the whole into a desired spot shape shaper into the three-dimensional photonic crystal from the three-dimensional photonic crystal side surface 7 of 7, the pump light pulse to all of the packets optical pulse envelope signal, the signal light and the pump light Ip is met when the three-dimensional photonic crystal 7, due to the nonlinear coupling effects, the signal light is amplified is amplified by the three-dimensional photonic crystal 7 outputs two kinds of light, one is to be 放大的信号光Gs,另一种光称为空闲光Gi,两种光经隔离器8和分光元件9之后各波长被分开,隔离器8防止前进的光在遇到光学元件表面时反射回来的光打坏三维光子晶体7,被放大的信号光经压缩器10色散得到补偿,将脉冲信号光压缩成超短的啁啾脉冲,放大后被压缩的信号光输送到接收装置11上。 Amplifying signal light Gs, another light called an idle Gi of light, each of the two kinds of wavelengths are separated by an optical isolator after 9 and the beam element 8, the isolator 8 prevents reflected light traveling in the face of the back surface of the optical element three-dimensional photonic crystal light broke 7, the amplified signal light is compensated for dispersion compressor 10, compressed into a pulse signal ultrashort optical chirped pulse, after amplification compressed signal fed to the light receiving device 11.

信号光和泵浦光的耦合放大是利用三维光子晶体中的一种非线性现象,它将一小部分入射光功率转移到频率比其低的斯托克斯波上;其工作原理是基于三维光子晶体的受激拉曼散射(SRS)效应。 Coupling signal light and pumping light amplification is a nonlinear phenomenon by using the three-dimensional photonic crystal, a small part of the incident power will be transferred to a lower frequency than the Stokes; its working principle is based on the three-dimensional photonic stimulated Raman scattering (SRS) effect by crystal. 三维光子晶体中的SRS源于三维光子晶体的三阶非线性效应,表现为泵浦光子、斯托克斯(Stokes)光子与光学支声子之间的相互作用:泵浦光子被介质分子吸收,电子从基态跃迁到虚能级,虚能级的大小是由泵浦光的能量决定的,然后虚能级的电子在信号光的感应下回到振动态的高能级,产生一个与信号光相同频率、相同相位、相同方向的光子,称为斯托克斯光子。 SRS-dimensional photonic crystal from the third-order nonlinear effect of a three-dimensional photonic crystal, the performance of the pump photons, the interaction between the Stokes (Stokes) photons and the optical phonon: molecular pump photon is absorbed by the medium , electron transitions from the ground state to a virtual energy level, energy level virtual size is determined by the energy of the pump light, and the virtual energy level electrons return to a high energy level in the induced vibrational signal light, and generates a signal light the same frequency, same phase, the photon same direction, called the Stokes photons. 如果一个信号光与一个强泵浦光波同时在三维光子晶体内,并且信号光波长位于泵浦光波的拉曼增益谱带宽之内,则此信号光可被该三维光子晶体放大。 If the signal light and a pumping light wave at the same time a strong three-dimensional photonic crystal, and the signal light wavelength is Raman gain spectrum of the pumping light wave bandwidth, then this amplified signal light may be the three-dimensional photonic crystal.

在图1所示的装置中,信号光源1是用固体激光器作光源,输出波长是10645nm,输出能量2.7μJ。 In the apparatus shown in FIG. 1, the signal light source 1 is a solid-state laser as a light source, the output wavelength is 10645nm, output energy 2.7μJ. 三维光子晶体点702呈球体形,三维光子晶体衬底是石英,掺杂为铒,信号光为其三倍频354nm。 Form a three-dimensional photonic crystal ball shape point 702, the three-dimensional photonic crystal is a quartz substrate, erbium doped, signal light for third harmonic 354nm. 实验表明波长为354nm的信号光被放大600倍以上,脉宽为2.1×10-15秒。 Experimental results show that the optical signal of wavelength 354nm is amplified 600 times, a pulse width of 2.1 × 10-15 seconds.

经实验表明,本发明装置具有结构简单,容易操作和泵浦效率高的特点。 The experiments show that the present invention has a simple structure, easy operation and high pumping efficiency.

Claims (10)

  1. 1.一种超短啁啾脉冲光子晶体光学参量放大装置,其特征在于该装置最核心的元件是三维光子晶体(7),进入该三维光子晶体(7)的信号光路的光学元件依次是信号光源(1)、第一脉冲发生器(2)、光准直元件(3)、起偏元件(4)、第一展宽器(5)和耦合元件(6);隔离器(8)和分光元件(9)位于所述的三维光子晶体(7)之后,从侧面进入所述的三维光子晶体(7)的泵浦光路的光学元件沿泵浦光的前进方向依次是泵浦光激光器(16)、第二脉冲发生器(15)、起偏器(14)、第二展宽器(13)和整形器(12);所述隔离器(8)之后是所述分光元件(9)和压缩器(10),压缩器(10)之后是信号光接收装置(11),而且进入所述三维光子晶体(7)的泵浦光脉冲展宽的脉宽大于信号光脉冲展宽的脉宽,泵浦光脉冲全部包络信号光脉冲。 An ultrashort pulse chirped photonic crystal optical parametric amplifying device, characterized in that the core elements of the apparatus is a three-dimensional photonic crystal (7), the optical path of the signal light component enters the three-dimensional photonic crystal (7) in turn is a signal a light source (1), a first pulse generator (2), an optical collimating element (3), polarizer element (4), a first stretcher (5) and the coupling element (6); separator (8) and the beam splitter advancing direction of the optical element along the optical path of the pump light of the pump element (9) located after the three-dimensional photonic crystal (7), entering from the side of the three-dimensional photonic crystal (7) is followed by a laser pump light (16 ), a second pulse generator (15), polarizer (14), a second stretcher (13) and a shaper (12); after the separator (8) is the spectral element (9) and compression (10), after the compressor (10) is a pumping light pulse stretcher signal light receiving means (11), and into the three-dimensional photonic crystal (7) is greater than the width of the pulse signal the pulse width of the optical pulse stretcher, pump all the light pulse envelope signal optical pulse.
  2. 2.根据权利要求1所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的信号光源(1)是激光器,该激光器和泵浦光激光器(16)为光纤固体激光器,或半导体激光器。 A photonic crystal optical parametric chirped ultrashort pulses according to claim 1, said amplifying means, wherein said signal light source (1) is a laser, the pump laser and the laser light (16) is a solid-state laser fiber, or a semiconductor laser.
  3. 3.根据权利要求1所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的第一脉冲发生器(2)和第二脉冲发生器(15)是电光调制的脉冲发生器。 The ultrashort pulse chirped photonic crystal 1, the optical parametric amplification means, wherein said first pulse generator (2) and a second pulse generator (15) is an electro-optic modulator as claimed in claim pulsar device.
  4. 4.根据权利要求1所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的起偏元件(4)和起偏器(14)为尼克耳棱镜,或偏振片,或渥拉斯顿棱镜。 The ultrashort pulse chirped photonic crystal 1, the optical parametric amplification means, wherein said polarizer element (4) and the polarizer (14) for the Nicol prisms, or a polarizing plate as claimed in claim or Wollaston prism.
  5. 5.根据权利要求1所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的光准直元件(3)是由半凸球面透镜构成的。 The ultrashort pulse chirped photonic crystal 1, the optical parametric amplification means, characterized in that the optical collimating element (3) is constituted by a semi-convex spherical lens of claim.
  6. 6.根据权利要求1所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的第一展宽器(5)和第二展宽器(13)的结构相同,主要包括闪耀光栅(501)、凸面反射镜(502)和凹面反射镜(503),其光路是输入光经闪耀光栅(501)反射、凹面反射镜(503)反射、凸面反射镜(502)反射、再经凹面反射镜(503)反射而输出。 The ultrashort pulse chirped photonic crystal 1, the optical parametric amplification means, wherein said first same stretcher (5) and the second stretcher (13) structure, including a blazed grating as claimed in claim (501), the convex mirror (502) and a concave reflector (503), which light path is input light (501) reflected by the concave mirror (503) reflection, the convex mirror (502) reflected by the blazed grating, then by a concave surface a mirror (503) reflection output.
  7. 7.根据权利要求1所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的三维光子晶体(7)是在三维光子晶体衬底(701)上布设若干三维光子晶体点(702)构成的。 The ultrashort pulse chirped photonic crystal 1, the optical parametric amplification means, wherein said three-dimensional photonic crystal (7) is laid in a number of three-dimensional points on the three-dimensional photonic crystal photonic crystal substrate (701) as claimed in claim (702) formed.
  8. 8.根据权利要求7所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的三维光子晶体点(702)是由玻璃内掺杂,或是石英掺杂材料组成,三维光子晶体点(702)的折射率大于三维光子晶体衬底(701),掺杂的元素是镱、铒稀有元素,所述的三维光子晶体点(702)呈球体形、立方体形、长方体形、菱体形、多面体形或曲线体形;三维光子晶体点(702)之间的排列呈菱形、方形、矩形或多边形。 A photonic crystal optical parametric chirped ultrashort pulses according to claim 7 amplifying device, characterized in that the three-dimensional photonic crystal point (702) is doped with the glass, or quartz doped material, three-dimensional the refractive index of the photonic crystal point (702) is larger than the three-dimensional photonic crystal substrate (701), the doping element is ytterbium, erbium rare elements, the three-dimensional photonic crystal point (702) as a ball shape, a cube, cuboid, diamond shape, or polyhedral shape curve; three-dimensional photonic crystal arranged between the point (702) as a diamond, square, rectangular or polygonal.
  9. 9.根据权利要求1所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的分光元件(9)是平面透射光栅,或是透射闪耀光栅,或是透射凹面光栅。 A photonic crystal optical parametric chirped ultrashort pulses according to claim 1, said amplifying means, wherein said spectral element (9) is a planar transmission grating or blazed transmission grating or a transmission grating concave.
  10. 10.根据权利要求1所述的超短啁啾脉冲光子晶体光学参量放大装置,其特征在于所述的接收装置(11)是CCD二极管列阵探测器、光电二极管、光电倍增管、多通道板、示波器、或计算机。 A photonic crystal optical parametric chirped ultrashort pulses according to claim 1, said amplifying means, characterized by receiving means (11) of the diode array detector is a CCD, a photodiode, photomultiplier tube, multichannel plate , oscilloscope, or a computer.
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