>50 MW peak power, high brightness Nd:YAG/Cr4+:YAG microchip laser with unstable resonator

被引：10
|
作者：
Lim, Hwan Hong [1 ]
Taira, Takunori [1 ,2 ]
机构：
[1] Inst Mol Sci, Div Res Innovat & Collaborat, 38 Nishigonaka, Okazaki, Aichi 4448585, Japan
[2] RIKEN SPring 8 Ctr, Laser Driven Electron Accelerat Technol Grp, 1-1-1 Kouto, Sayo 6795148, Japan
来源：
OPTICS EXPRESS | 2022年 / 30卷 / 04期
关键词：
CRYSTAL QUARTZ; COMPOSITE; CERAMICS;
D O I：
10.1364/OE.450335
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrated a flat-convex unstable cavity Nd:YAG/Cr4+:YAG ceramic air-cooled microchip laser (MCL) generating a record 37.6 and 59.2 MW peak power pulses with an energy of 17.0 and 24.1 mJ and a width of 452 and 407 ps at 20 Hz by using a uniform power square and hexagon pump, respectively. For hexagon pump, the near field hexagon donut beam was changed in to a Bessel-like beam in far field, whose beam quality was estimated as 2nd moment M-2 of 7.67. The brightness scale of unstable resonator MCL was achieved up to 88.9 TW/(sr.cm(2)) in contrast with flat-flat cavity MCL. However, the high intense center part of Bessel-like beam increased its brightness effectively more than 8 times, up to 736 TW/(sr.cm(2)). (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码：5151 / 5158
页数：8
相关论文
共 50 条
  • [21] Single diode-pumped, 1.7 ns microchip laser by Nd:YAG/Cr4+:YAG composite crystal
    Meng, J. Y.
    Wang, H. X.
    LASER PHYSICS, 2011, 21 (01) : 79 - 81
  • [22] Diode-pumped 214.8-nm Nd:YAG/Cr4+:YAG microchip laser system for the detection of NO
    Wormhoudt, J
    Shorter, JH
    Cook, CC
    Zayhowski, JJ
    APPLIED OPTICS, 2000, 39 (24) : 4418 - 4424
  • [23] Passive Q-switched Nd:YAG laser with Cr4+:YAG
    Southwest Inst of Technical Physics, Chengdu, China
    Jiguang Zazhi, 6 (14-16):
  • [24] High-peak-power passively Q-switched Nd:YAG/Cr4+:YAG composite laser with multiple-beam output
    T.Dascalu
    G.Croitoru
    O.Grigore
    N.Pavel
    Photonics Research, 2016, (06) : 267 - 271
  • [25] A compact pulse burst laser with YAG/Nd:YAG/Cr4+:YAG composite crystal
    Li, Xudong
    Zhou, Yiping
    Yan, Renpeng
    Wang, Deyan
    Fa, Xin
    Ma, Yufei
    Zhou, Zhongxiang
    OPTIK, 2017, 136 : 107 - 111
  • [26] High-peak-power passively Q-switched Nd: YAG/Cr4+:YAG composite laser with multiple-beam output
    Dascalu, T.
    Croitoru, G.
    Grigore, O.
    Pavel, N.
    PHOTONICS RESEARCH, 2016, 4 (06) : 267 - 271
  • [27] 60% FHG Efficiency from Fluxless-Grown BBO using Nd:YAG/Cr4+:YAG Microchip Laser
    Bhandari, R.
    Taira, T.
    Miyamoto, A.
    Furukawa, Y.
    Tago, T.
    2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2012,
  • [28] High peak power laser-diode-pumped passively Q=switched Nd:YVO4/Cr4+:YAG laser
    李健
    王翠玲
    王衍子
    危芹
    付殿岭
    林学春
    姚爱云
    崔大复
    许祖彦
    Chinese Optics Letters, 2004, (10) : 590 - 591
  • [29] High Peak-Power Passively Q-switched All-Ceramics Nd:YAG/Cr4+:YAG Lasers
    Pavel, Nicolaie
    Tsunekane, Masaki
    Taira, Takunori
    ROMOPTO 2009: NINTH CONFERENCE ON OPTICS: MICRO- TO NANOPHOTONICS II, 2010, 7469
  • [30] Composite Ceramic Nd3+:YAG/Cr4+:YAG Laser Elements
    Balashov, V. V.
    Bezotosnyi, V. V.
    Cheshev, E. A.
    Gordeev, V. P.
    Kanaev, A. Yu.
    Kopylov, Yu. L.
    Koromyslov, A. L.
    Lopukhin, K. V.
    Polevov, K. A.
    Tupitsyn, I. M.
    JOURNAL OF RUSSIAN LASER RESEARCH, 2019, 40 (03) : 237 - 242
12345