Ultrashort pulse light source and two-photon absorption recording medium recording apparatus having the same
    1.
    发明公开
    Ultrashort pulse light source and two-photon absorption recording medium recording apparatus having the same 审中-公开
    光源与超短脉冲和它们的记录装置中用于双光子吸收记录媒体使用

    公开(公告)号:EP2244340A2

    公开(公告)日:2010-10-27

    申请号:EP10160770.3

    申请日:2010-04-22

    发明人: Yamazoe, Shogo

    摘要: Providing a practical ultrashort pulse laser light source capable of recording information on two-photon absorption recording media at high-speed and stably. Providing a soliton mode-locked solid-state laser (10) that includes a resonator, a solid-state laser medium (16), a negative group velocity dispersion compensator (19) for compensating for group velocity dispersion within the resonator, and an excitation optical system (13) that outputs excitation light (Lo) for exciting the solid-state laser medium (16), and oscillates soliton pulse laser light (L) with a repetition frequency of not less than 1 GHz, an intensity modulator (30) that includes a waveguide electrooptic modulator (31) for modulating intensity of the soliton pulse laser light (L) and a driver (32) for applying a voltage to the waveguide electrooptic modulator (31) according to desired information, and a nonlinear optical element (40) for converting the intensity-modulated soliton pulse laser light (Lm) to a second harmonic wave.

    摘要翻译: 提供了能够高速且稳定地记录于双光子吸收记录媒体信息的一个实际的超短脉冲激光光源。 提供孤子模式同步固体激光(10)做了包括谐振器,固态激光介质(16),负的群速度色散补偿器(19),用于在谐振器内补偿群速度色散,并且在激发 光学系统(13)做了输出激励光(LO)用于激励固态激光介质(16)中,用不小于1千兆赫的重复频率振荡孤子脉冲激光(L),以强度调制器(30) 的确包括用于将电压施加到所述波导电光调制器(31),雅丁至所需的信息调制的孤子脉冲激光(L)和驱动器(32)的强度的波导电光调制器(31),和一非线性光学元件( 40),用于将强度调制孤子脉冲激光(LM)转换为第二谐波。

    Compact mode-locked solid-state laser
    2.
    发明公开
    Compact mode-locked solid-state laser 审中-公开
    Kompakter modengekoppelterFestkörperlaser

    公开(公告)号:EP2136442A1

    公开(公告)日:2009-12-23

    申请号:EP09008088.8

    申请日:2009-06-19

    IPC分类号: H01S3/098 G02B5/08 H01S3/08

    摘要: In a mode-locked laser-diode-excited laser apparatus: a solid-state laser medium (15) is arranged at a distance of at most twice the Rayleigh range from a saturable absorbing mirror with a depth of absorbing modulation of at least 0.4%; the total intracavity dispersion is smaller than zero and makes oscillating light have such a pulse bandwidth that the saturable absorbing mirror (16) can suppress a background pulses other than soliton pulses repeated with a fundamental repetition period; and an output mirror is a negative-dispersion mirror (5) in which high-index layers and low-index layers, having optical thicknesses randomly varying in the range of one-eighth to half of the predetermined wavelength, are alternately laminated, and the negative-dispersion mirror causes a mirror dispersion of -1000 fsec 2 to -100 fsec 2 and realizes a reflectance of 97% to 99.5%.

    摘要翻译: 在锁模激光二极管激光激光装置中:固态激光介质(15)布置在与可饱和吸收镜相距至多两倍的瑞利范围内,其吸收深度为至少0.4% ; 总内腔色散小于零,使得振荡光具有这样的脉冲带宽,即可饱和吸收镜(16)可以抑制除基本重复周期重复的孤子脉冲之外的背景脉冲; 输出镜是负色散反射镜(5),其中具有在预定波长的八分之一到一半的范围内随机变化的光学厚度的高折射率层和低折射率层交替层叠, 负分散反射镜产生-1000fsec 2至-100fsec 2的镜面色散,并实现97%至99.5%的反射率。

    Solid-state laser device
    3.
    发明公开
    Solid-state laser device 审中-公开
    Festkörperlaservorrichtung

    公开(公告)号:EP2387117A2

    公开(公告)日:2011-11-16

    申请号:EP11162972.1

    申请日:2011-04-19

    发明人: Yamazoe, Shogo

    摘要: There is provided a solid-state laser device (10) including: a resonator; a solid-state laser medium (18) disposed in the resonator; an excitation section that irradiates an excitation beam into the solid-state laser medium (18); a mode selector (26) that controls transverse modes of oscillating light in the resonator; and a movement section (28) that moves the mode selector (26) along the resonator optical axis direction (Z).
    The laser may be mode-locked with a SESAM (12) and the laser medium may be Yb: KYW. The transverse mode selector may be a knife edge (26) which is translated with the help of a holder (28) resulting in a single transverse mode emission of the laser.

    摘要翻译: 提供了一种固体激光装置(10),包括:谐振器; 设置在谐振器中的固态激光介质(18); 激励部,其将激发光束照射到所述固态激光介质中; 模式选择器(26),其控制谐振器中的振荡光的横向模式; 以及使模式选择器(26)沿着谐振器光轴方向(Z)移动的移动部(28)。 激光可以用SESAM(12)锁模,激光介质可以是Yb:KYW。 横模式选择器可以是在保持器(28)的帮助下平移的刀刃(26),导致激光器的单一横向模式发射。

    Negative dispersion mirror and mode-locked solid-state laser apparatus including the mirror
    4.
    发明公开
    Negative dispersion mirror and mode-locked solid-state laser apparatus including the mirror 审中-公开
    镜具有负色散和模式同步固体激光装置,其包括反射镜

    公开(公告)号:EP2042893A3

    公开(公告)日:2010-12-15

    申请号:EP08017016.0

    申请日:2008-09-26

    IPC分类号: G02B5/08 H01S3/08 G02B5/28

    摘要: A negative dispersion mirror (5) can generate large negative group-velocity dispersion and it can be used as an output mirror of a solid-state laser apparatus. The mirror (5) includes a substrate (6) and a dielectric multilayer coating structure (7) formed on the substrate (6). The multilayer coating structure (7) includes two mirror-function layer portions (ML 1 , ML 2 ), each formed by a plurality of layers deposited one on another, and a cavity layer (C) that is arranged between the two mirror-function layer portions (ML 1 , ML 2 ), and which causes light (L) having a predetermined wavelength to resonate between the two mirror-function layer portions (ML 1 , ML 2 ). Further, a dispersion value with respect to the light (L) having the predetermined wavelength is in the range of -600fs 2 to -3000fs 2 and a reflectance with respect to the light (L) having the predetermined wavelength is in the range of 97% to 99.5%.

    Compact mode-locked solid-state laser
    6.
    发明公开
    Compact mode-locked solid-state laser 审中-公开
    Kompakter modengekoppelterFestkörperlaser

    公开(公告)号:EP2180562A1

    公开(公告)日:2010-04-28

    申请号:EP09013301.8

    申请日:2009-10-21

    摘要: There is provided a mode locked laser device including: a cavity, the cavity having a semiconductor saturable absorbing mirror (14) and a negative dispersion mirror (20) that controls group velocity dispersion within the cavity, disposed in a straight line; a solid-state laser medium (16), disposed in the cavity and outputting oscillating light due to excitation light being incident thereon; an excitation unit that causes the excitation light to be incident on the solid-state laser medium; and a cavity holder (34), the light incident face of the semiconductor saturable absorbing mirror (14) attached to one end of the cavity holder (34), the negative dispersion mirror (20) attached to the other end of the cavity holder (34), and the cavity holder integrally supporting the semiconductor saturable absorbing mirror and the negative dispersion mirror.
    SESAM (14) and solid-state laser medium (16) are temperature controlled with a Peltier cooler (22). The laser emits at high repetition rates soliton pulses stably.

    摘要翻译: 提供了一种模式锁定激光装置,包括:空腔,该空腔具有半导体可饱和吸收镜(14)和负分散反射镜(20),该负色散反射镜控制腔体内的群速度分散,设置在直线上; 固态激光介质(16),其设置在所述空腔中并且由于激发光入射而输出振荡光; 激励单元,其使激发光入射到固态激光介质上; 和空腔保持器(34),所述半导体可饱和吸收反射镜(14)的光入射面附接到所述腔保持器(34)的一端,所述负分散镜(20)附接到所述腔保持器的另一端 34)和一体地支撑半导体可饱和吸收镜和负色散镜的腔保持架。 SESAM(14)和固态激光介质(16)由珀尔贴(Peltier)冷却器(22)进行温度控制。 激光以高重复率发射孤岛脉冲稳定。

    Mode-locked solid-state laser apparatus
    7.
    发明公开
    Mode-locked solid-state laser apparatus 审中-公开
    模式同步固体激光装置

    公开(公告)号:EP2244339A3

    公开(公告)日:2016-05-11

    申请号:EP10160766.1

    申请日:2010-04-22

    发明人: Yamazoe, Shogo

    摘要: In order to stably generate high-power pulsed laser light by a small-sized apparatus constructed at low cost, a mode-locked solid-state laser apparatus includes: a resonator having a linear form; a solid-state laser medium (13) arranged in the resonator; a saturable absorber (12) which is arranged at one end of the resonator or inside the resonator for inducing mode locking; an excitation optical system (18) which injects excitation light (L 0 ) into the solid-state laser medium; and a cavity dumping mechanism (20, 20') which extracts from the resonator pulsed light (L) oscillating in the resonator. The cavity dumping mechanism includes an electro-optical modulator (21) which changes the direction of polarization of the pulsed light, and a deflector (22) which has a function of deflecting the pulsed light to a direction intersecting the optical axis of the resonator after the pulsed light undergoes the change by the electro-optical modulator.

    Mode-locked solid-state laser apparatus
    9.
    发明公开
    Mode-locked solid-state laser apparatus 审中-公开
    ModengekoppelteFestkörperlaservorrichtung

    公开(公告)号:EP2244339A2

    公开(公告)日:2010-10-27

    申请号:EP10160766.1

    申请日:2010-04-22

    发明人: Yamazoe, Shogo

    摘要: In order to stably generate high-power pulsed laser light by a small-sized apparatus constructed at low cost, a mode-locked solid-state laser apparatus includes: a resonator having a linear form; a solid-state laser medium (13) arranged in the resonator; a saturable absorber (12) which is arranged at one end of the resonator or inside the resonator for inducing mode locking; an excitation optical system (18) which injects excitation light (L 0 ) into the solid-state laser medium; and a cavity dumping mechanism (20, 20') which extracts from the resonator pulsed light (L) oscillating in the resonator. The cavity dumping mechanism includes an electro-optical modulator (21) which changes the direction of polarization of the pulsed light, and a deflector (22) which has a function of deflecting the pulsed light to a direction intersecting the optical axis of the resonator after the pulsed light undergoes the change by the electro-optical modulator.

    摘要翻译: 为了通过以低成本构造的小型装置稳定地产生高功率脉冲激光,锁模固体激光装置包括:具有线性形式的谐振器; 布置在谐振器中的固态激光介质(13); 一个可饱和吸收器(12),其布置在谐振器的一端或谐振器内部,用于引导模式锁定; 激发光学系统(18),其将激发光(L 0)注入到所述固态激光介质中; 以及从谐振器中振荡的谐振器脉冲光(L)提取的空腔倾倒机构(20,20')。 空腔倾卸机构包括改变脉冲光的偏振方向的电光调制器(21),以及偏转器(22),其具有使脉冲光偏转到与谐振器的光轴相交的方向的功能, 脉冲光由电光调制器发生变化。

    Mode-locked solid-state laser
    10.
    发明公开
    Mode-locked solid-state laser 审中-公开
    锁模固态激光器

    公开(公告)号:EP2136441A1

    公开(公告)日:2009-12-23

    申请号:EP09008087.0

    申请日:2009-06-19

    IPC分类号: H01S3/098 G02B5/08 H01S3/08

    摘要: In a mode-locked laser-diode-excited laser apparatus: a solid-state laser medium (15) is arranged at a distance of at most twice the Rayleigh range from a saturable absorbing mirror with a depth of absorbing modulation of at least 0.4%; the total intracavity dispersion is smaller than zero and makes oscillating light have such a pulse bandwidth that the saturable absorbing mirror (16) can suppress a background pulses other than soliton pulses repeated with a fundamental repetition period, and the magnitude of the total intracavity dispersion has a predetermined relationship with a pulse width of the oscillating light; and an output mirror is a negative-dispersion mirror (5) being constituted by three or more multilayer mirrors and cavity layers arranged at predetermined intervals between the three or more multilayer mirrors, and causing a mirror dispersion of -3000 fsec 2 to -600 fsec 2 and realizes a reflectance of 97% to 99.5%.

    摘要翻译: 在锁模激光二极管激励激光装置中:固体激光介质(15)被布置在距离可饱和吸收镜至多两倍瑞利(Rayleigh)范围的距离处,其中吸收调制深度至少为0.4% ; 腔内色散总量小于零,并且使得振荡光具有这样的脉冲带宽,使得可饱和吸收镜(16)可以抑制除基本重复周期重复的孤子脉冲以外的背景脉冲,并且总的腔内色散的量值具有 与振荡光的脉冲宽度的预定关系; 并且输出镜是负色散反射镜(5),其由在三个或更多个多层反射镜之间以预定间隔布置的三个或更多个多层反射镜和谐振腔层构成,并且引起-3000fssec至-600fsec2的镜面色散和 实现了97%至99.5%的反射率。