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光学技术2020年第46卷第4期 目录
【出 处】
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光学技术
【发表日期】
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2020年46期
其他文献
A novel scheme of photonic aided vector millimeter-wave (mm-wave) signal generation without a digital-to-analog converter (DAC) is proposed. Based on our scheme, a 20 Gb/s 4-ary quadrature amplitude modulation (4-QAM) mm-wave signal is generated without u
Proposal of switchable multiwavelength laser with continuously tunable spacing in MgO: APPLN wavegui
A switchable multiwavelength laser with a continuously tunable spacing is proposed and illustrated based on cascaded interactions of the second harmonic and difference-frequency generations in an aperiodically poled MgO-doped lithium niobate (MgO:APPLN) w
提出一种使用二元光学器件实现位相校正的新方法。在子孔径拼接的相控列阵光学系统中,采用二元光学器件二元位相校正板对子孔径拼接后产生的残留波像差进行校正,既达到位相校正技术要求,又大大简化系统结构并减小了系统的尺寸和重量。所制作的二元器件具有8个台阶,套刻精度达到2 μm,并使残留波像差降为原来的一半。
本文描述一台四灯泵浦平板自波导染料激光器,以30次/秒脉冲重复率运转时平均输出功率达3瓦。利用泵浦脉冲在激活介质内所造成的折射率梯度的非均匀分布形成激光波导腔,充分利用了染料溶液的高增益区,由此获得高效率和高功率输出。
期刊
从简化的计算得到铜蒸气放大的自发辐射脉冲中光子数与光脉冲持续时间的关。该关系与弛豫振荡的实验规律接近一致。并对振荡的成因作了分析。还讨论了速率方程给不出与激光弛豫振荡相符合的结果这一问题。
A new polarization gating is demonstrated by our principle-of-proof experiment, which is theoretically proposed to generate the isolated or double attosecond pulses with the multi-cycle driving laser pulse in the previous work [Optics Express. 20, 5196 (2
A new transparent Tm3 -doped ZrF4-based nanocrystallized glass with the composition of 55ZrF4-20BaF2-18.8YF3-5AlF5-1.2TmF3 (mol%) (ZBYA) has been prepared by a conventional melting quenching technique and the subsequent heat treatment processes. The glass