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光电负反馈抑制全固化单频激光器的强度噪声
Suppression of Intensity Noise of LD-Pumped Single-Frequency Ring Nd∶YVO4 Lasers by Opto-Electronic Feedback
【摘要】 实验研究了激光二极管抽运的Nd∶YVO4 环形单频激光器的强度噪声特性 ,通过光电负反馈调制激光二极管抽运源 ,使激光器的弛豫振荡噪声受到抑制 ,在 30 0kHz弛豫振荡峰处输出光的强度噪声被降低 2 5dB
【Abstract】 The characteristic of the intensity noise of LD pumped single frequency ring Nd∶YVO 4 lasers is theoretically and experimentally investigated. The resonant relaxation oscillation (RRO) in the noise spectrum of laser output is strongly suppressed by a self designed negatively opto electronic feedback system. The intensity noise around the peak of RRO (300 kHz) is reduced about 25 dB.
【关键词】 环形单频激光器;
强度噪声;
负反馈;
【Key words】 ring single frequency laser; intensity noise; negative feedback;
【Key words】 ring single frequency laser; intensity noise; negative feedback;
【基金】 国家自然科学基金 (6 99772 4、6 98370 10 );山西省自然科学基金资助课题
- 【文献出处】 光学学报 ,Acta Optica Sinica , 编辑部邮箱 ,2001年09期
- 【分类号】TN248
- 【被引频次】20
- 【下载频次】250