570 nm附近黄光处于人眼敏感波段，在医疗、生活及科研等领域有重要需求，该波段激光的研究关系到国民经济和前沿科学领域的发展。报道了一种蓝光激光二极管端面抽运Dy-Tb∶LuLiF4晶体的黄光激光器。选用单个蓝光激光二极管和两个蓝光激光二极管合束两种方式作为抽运源分别进行实验，通过温度调节系统解决晶体的产热问题，从而实现抽运光波长为573.9 nm的黄光激光输出。在吸收抽运功率为3.0 W的条件下，输出黄光激光的功率为297 mW，斜效率为12.3%。采用多层黑磷材料为调Q光开关，实现了黄光脉冲激光输出。在吸收抽运功率为2.8 W时，黄光脉冲激光的平均输出功率为54 mW，相应的脉冲宽度为766.8 ns，相应的脉冲能量为2.1 μJ。
激光器 黄光激光 被动调Q技术 Dy-Tb∶LuLiF4 中国激光
2023, 50(22): 2201006
1 青岛大学物理科学学院, 山东 青岛 266071
2 海军航空大学航空基础学院, 山东 烟台 264001
介绍和总结了近年来掺Yb稀土钙氧硼酸盐(Yb∶ReCOB)晶体激光器研究取得的主要进展。这些进展包括连续波激光器,声光调Q,以Cr 4+∶YAG、GaAs、二维材料等为可饱和吸收体的被动调Q,SESAM被动锁模,克尔透镜锁模,以及自倍频绿光和黄光激光器等。这类Yb∶ReCOB晶体对许多不同运转模式的全固态激光器应用都表现出很大潜力。
激光光学 Yb激光器 调Q 锁模 自倍频 Yb∶YCOB; Yb∶GdCOB; 激光与光电子学进展
2020, 57(7): 071604
Author Affiliations
Abstract
1 , Qingdao 266071, China
2 , Qingdao 266071, China
3 , Jinan 250100, China
We report on the continuous-wave (CW) and passive Q-switching performance of a miniature Yb:Y3Ga5O12 crystal laser end pumped by a 935-nm diode laser. A maximum CW output power of 12.03 W is produced with an optical-to-optical efficiency of 54.4%, while the slope efficiency is 63%. In the passively Q-switched operation achieved with a Cr4+:YAG saturable absorber, an average output power of 2.12 W at 1025.2 nm is generated with a slope efficiency of 46% at a pulse repetition rate of 5.0 kHz. The pulse’s energy, duration, and peak power are 424 μJ, 2.3 ns, and 184.3 kW, respectively.
140.3615 Lasers, ytterbium 140.3540 Lasers, Q-switched 140.3480 Lasers, diode-pumped Chinese Optics Letters
2016, 14(1): 011407
1 青岛大学物理科学学院, 山东 青岛 266071
2 山东省高校光子学材料与技术重点实验室(青岛大学), 山东 青岛 266071
以Cr4+:YAG晶体作为可饱和吸收体，利用平凹谐振腔实现了Yb:GdCOB晶体的被动调Q激光运转。当沿X轴切割的厚度为2.0 mm的晶体吸收抽运功率为6.3 W时，所产生的沿Z主轴方向偏振的平均脉冲输出功率达到0.62 W，脉冲重复率为3.6 kHz，相应的单脉冲能量、脉冲宽度和峰值功率分别为172 μJ、20 ns和8.6 kW。
激光器 Yb3+激光器 被动调Q Yb:GdCOB晶体
Author Affiliations
Abstract
State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100
Cat mutually pumped phase conjugation configuration is discovered and investigated by using two-wave mixing in (K_(y)Na_(1-y))_(2z)(Sr_(x)Ba_(1-x))_(1-z)Nb_(2)O_(6) (KNSBN) crystal. When only one signal or pumped beam does not give birth to phase conjugation, the maximum reflectivity of signal and pumped beam attain 140% and 30% due to two-wave mixing, respectively. The experimental results show that the two-wave mixing can reduce the threshold of incident beams power, extend the incident angle range, and shorten response rate in the process of self-pumped phase conjugator (SPPC) in KNSBN crystal.
190.0190 nonlinear optics Chinese Optics Letters
2003, 1(8): 08482
State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China
Chinese Journal of Lasers B
2002, 11(2): 125
National Laboratory of Crystal Materials, Shandong University,Jinan 250100, China
Chinese Journal of Lasers B
2001, 10(1): 1
National Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
Chinese Journal of Lasers B
2000, 9(4): 302
1 National Key Lab. of Crystal Materials, Shangdong University, Jinan 250100, China
2 Department of Optics, Shandong University, Jinan 250100, China
Chinese Journal of Lasers B
1999, 8(2): 188
National Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
Chinese Journal of Lasers B
1999, 8(2): 103
