Near-infrared distributed feedback solgel lasers by intensity modulation and polarization modulation.
Near-infrared distributed feedback solgel lasers by intensity modulation and polarization modulation.
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DOI：
10.1364/ao.50.006248
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发表时间：
2011-11
期刊：
影响因子：
1.9
通讯作者：
Jun Wang;Hongxing Dong;Jintai Fan;Rihong Li;Long Zhang;K. Wong
中科院分区：
文献类型：
--
作者：
Jun Wang;Hongxing Dong;Jintai Fan;Rihong Li;Long Zhang;K. Wong
研究了恶嗪725染料在氧化锆薄膜和石英块体中的近红外分布反馈（DFB）激光作用。采用强度调制和偏振调制两种方式产生DFB激光。通过改变纳秒Nd：YAG激光器在532 nm处产生的调制周期，实现了输出波长的宽带调谐。薄膜激光器和体激光器的调谐范围分别为716-778 nm和724-813 nm。当反馈机制由强度调制转变为偏振调制时，激光输出表现出不同的偏振特性和阈值能量变化。
Near-infrared distributed feedback (DFB) laser actions of Oxazine 725 dye in zirconia thin films and in silica bulks were investigated. Intensity modulation and polarization modulation were used to generate the DFB lasing. Wideband tuning of the output wavelength was achieved by varying the period of the modulation generated by a nanosecond Nd:YAG laser at 532 nm. Tuning ranges were 716-778 nm and 724-813 nm for the thin film lasers and the bulk lasers, respectively. The laser output showed different polarization characteristics and threshold energy variation when the feedback mechanism was changed from intensity modulation to polarization modulation.