Phosphate glass useful in high energy lasers
    1.
    发明授权
    Phosphate glass useful in high energy lasers 失效
    磷酸盐玻璃可用于高能激光

    公开(公告)号:US5526369A

    公开(公告)日:1996-06-11

    申请号:US957184

    申请日:1992-10-07

    摘要: In a high energy laser system utilizing phosphate laser glass components tomplify the laser beam, the laser system requires a generated laser beam having an emission bandwidth of less than 26 nm and the laser glass components consist essentially of (on an oxide composition basis):______________________________________ Mole % ______________________________________ P.sub.2 O.sub.5 50-75 Al.sub.2 O.sub.3 >0-10 K.sub.2 O >0-30 MgO 0-30 CaO 0-30 Li.sub.2 O 0-20 Na.sub.2 O 0-20 Rb.sub.2 O 0-20 Cs.sub.2 O 0-20 BeO 0-20 SrO 0-20 BaO 0-20 ZnO 0-20 PbO 0-20 B.sub.2 O.sub.3 0-10 Y.sub.2 O.sub.3 0-10 La.sub.2 O.sub.3 0-8 Ln.sub.2 O.sub.3 0.01-8 ______________________________________ whereinthe sum of MgO and CaO is >0-30;the sum of Li.sub.2 O, Na.sub.2 O, Rb.sub.2 O, and Cs.sub.2 O is 0-20;the sum of BeO, SrO, BaO, ZnO, and PbO is 0-20;the sum of B.sub.2 O.sub.3 and Y.sub.2 O.sub.3 is 0-10; andLn.sub.2 O.sub.3 represents the sum of the oxides of active lasing lanthanides of atomic number 58-71.

    摘要翻译: 在利用磷酸盐激光玻璃元件来放大激光束的高能量激光系统中,激光系统需要发射带宽小于26nm的激光束,激光玻璃组分基本上由(基于氧化物组成)组成: - 摩尔%-P2O5 50-75-Al2O3> 0-10-K2O> 0-30 -MgO 0-30 -CaO 0-30 -Li2O 0-20 -Na2O 0-20 -Rb2O 0-20 -Cs2O 0-20 -BoO 0-20 -SrO 0-20 -BaO 0-20 -ZnO 0-20 -PbO 0-20 -B2O3 0-10 -Y2O3 0-10 -La2O3 0-8 -Ln2O3 0.01-8 - 其中和 MgO和CaO> 0-30; Li2O,Na2O,Rb2O和Cs2O的总和为0-20; BeO,SrO,BaO,ZnO,PbO的总和为0〜20; B2O3和Y2O3的总和为0-10; Ln2O3表示原子序数58-71的活性激光镧系元素的氧化物的总和。

    Ultrafast pulsed laser utilizing broad bandwidth laser glass
    2.
    发明授权
    Ultrafast pulsed laser utilizing broad bandwidth laser glass 失效
    超宽脉冲激光采用宽带激光玻璃

    公开(公告)号:US5663972A

    公开(公告)日:1997-09-02

    申请号:US416551

    申请日:1995-04-03

    摘要: An ultrafast laser uses a Nd-doped phosphate laser glass characterized by a particularly broad emission bandwidth to generate the shortest possible output pulses. The laser glass is composed primarily of P.sub.2 O.sub.5, Al.sub.2 O.sub.3 and MgO, and possesses physical and thermal properties that are compatible with standard melting and manufacturing methods. The broad bandwidth laser glass can be used in modelocked oscillators as well as in amplifier modules.

    摘要翻译: 超快激光器使用特征在于特别宽的发射带宽的Nd掺杂磷酸盐激光玻璃来产生最短的输出脉冲。 激光玻璃主要由P2O5,Al2O3和MgO组成,具有与标准熔融和制造方法兼容的物理和热性能。 宽带激光玻璃可用于锁模振荡器以及放大器模块。

    Synthetic guide star generation
    4.
    发明授权
    Synthetic guide star generation 失效
    合成指南星代

    公开(公告)号:US06704331B2

    公开(公告)日:2004-03-09

    申请号:US09833403

    申请日:2001-04-11

    IPC分类号: H01S300

    CPC分类号: G02B23/10

    摘要: A system for assisting in observing a celestial object and providing synthetic guide star generation. A lasing system provides radiation at a frequency at or near 938 nm and radiation at a frequency at or near 1583 nm. The lasing system includes a fiber laser operating between 880 nm and 960 nm and a fiber laser operating between 1524 nm and 1650 nm. A frequency-conversion system mixes the radiation and generates light at a frequency at or near 589 nm. A system directs the light at a frequency at or near 589 nm toward the celestial object and provides synthetic guide star generation.

    摘要翻译: 一种用于辅助观察天体并提供合成引导星生成的系统。 激光系统以938nm或接近983nm的频率提供辐射,在1583nm或接近1583nm的频率处提供辐射。 激光系统包括在880nm和960nm之间工作的光纤激光器和在1524nm和1650nm之间工作的光纤激光器。 频率转换系统将辐射混合并以589nm或接近589nm的频率产生光。 系统以589nm或接近589nm的频率将光引导到天体,并提供合成引导星代。

    Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition
    5.
    发明授权
    Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition 失效
    基于在谐振零声子跃迁上操作的掺镱激光晶体的蓝色二极管泵浦固态激光器

    公开(公告)号:US06304584B1

    公开(公告)日:2001-10-16

    申请号:US09187327

    申请日:1998-11-06

    IPC分类号: H01S310

    摘要: The invention provides an efficient, compact means of generating blue laser light at a wavelength near ˜493+/−3 nm, based on the use of a laser diode-pumped Yb-doped laser crystal emitting on its zero phonon line (ZPL) resonance transition at a wavelength near ˜986+/−6 nm, whose fundamental infrared output radiation is harmonically doubled into the blue spectral region. The invention is applied to the excitation of biofluorescent dyes (in the ˜490-496 nm spectral region) utilized in flow cytometry, immunoassay, DNA sequencing, and other biofluorescence instruments. The preferred host crystals have strong ZPL fluorecence (laser) transitions lying in the spectral range from ˜980 to ˜992 nm (so that when frequency-doubled, they produce output radiation in the spectral range from 490 to 496 nm). Alternate preferred Yb doped tungstate crystals, such as Yb:KY(WO4)2, may be configured to lase on the resonant ZPL transition near 981 nm (in lieu of the normal 1025 nm transition). The laser light is then doubled in the blue at 490.5 nm.

    摘要翻译: 基于在其零声子线(ZPL)谐振上发射的激光二极管泵浦的Yb掺杂激光晶体的使用,本发明提供了以近似于493 +/- 3nm的波长产生蓝色激光的有效且紧凑的方法 在986 +/- 6nm附近的波长处的过渡,其基本红外输出辐射在蓝色光谱区域中被谐波地加倍。 本发明应用于流式细胞术,免疫测定,DNA测序和其他生物荧光仪器中使用的生物荧光染料(在〜490-496nm光谱区域)的激发。 优选的主体晶体在〜980〜〜992nm的光谱范围内具有强的ZPL荧光(激光)跃迁(因此当倍频时,它们在490至496nm的光谱范围内产生输出辐射)。 替代优选的Yb掺杂的钨酸盐晶体,例如Yb:KY(WO4)2,可以被配置为在接近981nm的谐振ZPL跃迁上(代替正常的1025nm跃迁)。 然后将激光以490.5nm的蓝色加倍。

    Monolithic laser diode array with one metalized sidewall
    6.
    发明授权
    Monolithic laser diode array with one metalized sidewall 失效
    具有一个金属化侧壁的单片激光二极管阵列

    公开(公告)号:US06266353B1

    公开(公告)日:2001-07-24

    申请号:US09365290

    申请日:1999-07-30

    IPC分类号: H01S5024

    摘要: A monolithic, electrically-insulating substrate that contains a series of notched grooves is fabricated. The substrate is then metalized so that only the top surface and one wall adjacent to the notch are metalized. Within the grooves is located a laser bar, an electrically-conductive ribbon or contact bar and an elastomer which secures/registers the laser bar and ribbon (or contact bar) firmly along the wall of the groove that is adjacent to the notch. The invention includes several embodiments for providing electrical contact to the corresponding top surface of the adjacent wall. In one embodiment, after the bar is located in the proper position, the electrically conductive ribbon is bent so that it makes electrical contact with the adjoining metalized top side of the heatsink.

    摘要翻译: 制造包含一系列凹槽的单片电绝缘基板。 然后将衬底金属化,使得只有顶部表面和与凹口相邻的一个壁被金属化。 在凹槽内设有激光棒,导电带或接触杆和弹性体,其牢固地固定/对准激光棒和带(或接触杆)沿着与凹口相邻的凹槽的壁。 本发明包括用于向相邻壁的对应顶表面提供电接触的若干实施例。 在一个实施例中,在杆位于适当位置之后,导电带被弯曲,使得其与散热器的相邻的金属化顶侧电接触。

    AlGaAs diode pumped tunable chromium lasers
    8.
    发明授权
    AlGaAs diode pumped tunable chromium lasers 失效
    AlGaAs二极管泵浦可调谐铬激光器

    公开(公告)号:US5105434A

    公开(公告)日:1992-04-14

    申请号:US698038

    申请日:1991-05-10

    IPC分类号: H01S3/0941 H01S3/106 H01S3/16

    摘要: An all-solid-state laser system is disclosed wherein the laser is pumped in the longwave wing of the pump absorption band. By utilizing a laser material that will accept unusually high dopant concentrations without deleterious effects on the crystal lattice one is able to compensate for the decreased cross section in the wing of the absorption band, and the number of pump sources which can be used with such a material increases correspondingly. In a particular embodiment a chromium doped colquiriite-structure crystal such as Cr:LiSrAlF.sub.6 is the laser material. The invention avoids the problems associated with using AlGaInP diodes by doping the Cr:LiSrAlF.sub.6 heavily to enable efficient pumping in the longwave wing of the absorption band with more practical AlGaAs diodes.

    摘要翻译: 公开了一种全固体激光系统,其中激光被泵送在泵吸收带的长波翼中。 通过利用将接受异常高的掺杂剂浓度而不对晶格造成有害影响的激光材料,能够补偿吸收带的翼中减小的横截面,以及能够与这种 材料相应增加。 在一个具体实施方案中,铬掺杂的氯氰菊酯结构如Cr:LiSrAlF 6是激光材料。 本发明避免了使用AlGaInP二极管与Cr:LiSrAlF6重掺杂相关的问题,以便能够在较为实用的AlGaAs二极管的吸收带的长波翅膀中有效地泵浦。