Author Affiliations
Abstract
1 Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
2 Institute of Data Science and Technology, Shandong Normal University, Jinan 250014, China
3 Synthetic Single Crystal Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China
4 Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China
Using a novel silver nanorods absorber with a localized surface plasmon resonance absorption peak at 1.06 μm, we obtain a diode-pumped passively Q-switched (PQS) Nd,Gd:CaF2 disordered crystal laser output. Its PQS pulse laser performances are studied comprehensively and systematically in this Letter. The single pulse energy and peak power can be attained to 2.15 μJ and 2.06 W, respectively.
140.0140 Lasers and laser optics 140.3380 Laser materials 140.3480 Lasers, diode-pumped 140.3540 Lasers, Q-switched Chinese Optics Letters
2018, 16(2): 020015
沈阳工业大学信息科学与工程学院, 辽宁 沈阳 110870
叠栅条纹相位差测量是光栅位移测量中的关键技术，在两块光栅相对运动过程中，叠栅条纹信号的频率会因光栅夹角误差的存在而发生偏移，采用传统多相位快速傅里叶变换(MPFFT)算法计算任意时刻叠栅条纹相位值会产生测量误差，导致相位差测量不准确。为了减少频偏所产生的相位测量误差，提出了一种校正MPFFT相位测量算法，推导出了基于相位差校正法的MPFFT谱校正模型。仿真结果表明，在无噪声情况下，当光栅夹角误差为0.1°时，信号的最大频率偏移量约为4.19 kHz，传统MPFFT相位测量误差大于100°，经相位校正后，相位测量误差小于0.2°，相位差测量误差小于0.004°；在高斯噪声和谐波干扰情况下，相位差测量误差小于0.2°，当取栅距为20 μm时，相位差测量误差所产生的位移测量误差小于0.0111 μm，为光栅位移纳米级测量提供了参考。
光栅 叠栅条纹 相位差测量 相位差校正
Author Affiliations
Abstract
1 Department of Physics, Shandong Normal University, Ji'nan 250014
2 National Laboratory of Crystal Materials, Shandong University, Ji'nan 250100
The diode-pumped Nd:Y_(x)Gd_(1-x)VO_(4) crystal continuous wave (CW) laser operating at 1.06 um with a simple plane-concave cavity and a "V-shaped" folded cavity for intracavity frequency-doubling have been studied. With the incident pump power of 8 W, an output power (1.06 um) of 3.4 W was achieved, giving an optical conversion efficiency of 42.5%. 884 mW of stable green radiation was generated with the incident pump power of 5.9 W, giving an optical conversion efficiency of 15%.
140.3480 lasers diode-pumped 140.3580 lasers solid-state 140.3380 laser materials 140.7300 visible lasers Chinese Optics Letters
2004, 2(1): 0129
Author Affiliations
Abstract
Laboratory of Modern Optics, Shandong Normal University, Ji’nan 250014
Diode-pumped passively Q-switched Nd:GdVO4/Cr^(4+):YAG lasers with a simple flat-flat cavity were demonstrated. The maximum average output power at 1.06 μm was 1.25 W. The highest peak power and pulse energy were 7.56 kW and 75 μJ, respectively, with the pulse repetition rate of 11.1 kHz and pulse width of 10 ns at the incident pump power of 8 W.
140.3540 lasers Q-switched 140.3530 lasers neodymium 140.3580 lasers solid-state Chinese Optics Letters
2003, 1(6): 06337
