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| 短腔Er/Yb光纤光栅激光器 | |
| 引用本文： | 许远忠,谭华耀,杜卫冲,刘水华. 短腔Er/Yb光纤光栅激光器[J]. 光学学报, 1999, 19(10): 327-1331 |
| 作者姓名： | 许远忠 谭华耀 杜卫冲 刘水华 |
| 作者单位： | 1. 武汉邮电科学研究院器件所,武汉,430074 2. 香港理工大学电机工程学系,香港 3. 华南师范大学物理系,广州,510631 |
| 摘 要： | 报道采用光敏Ｅｒ／Ｙｂ 光纤制作短腔Ｅｒ／Ｙｂ 光纤光栅激光器的实验结果。激光谐振腔由一对直接写在３０ ｍ ｍ 长的Ｅｒ／Ｙｂ 光纤上、长度分别为６ ｍ ｍ 及１０ ｍ ｍ 、反射率分别为９０％ 及９８．６％ 、３ ｄＢ带宽分别为０．２８ ｎｍ 及０．２６ ｎｍ 的光纤布拉格光栅组成， 激光器的泵浦阈值为８ｍ Ｗ， 斜效率约１４％ ， 输出光的信噪比为６１ ｄＢ， 偏振模抑制比为３０ ｄＢ。 |
| 关 键 词： | Er/Yb辅助掺杂光纤 光纤布拉格光栅 光纤光栅激光器 |
| 收稿时间： | 1998-04-22 |
Short Cavity Er/Yb Fiber Grating Laser |
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| Xu Yuanzhong,Tan Huayao,Du Weicong,Liu Suihua. Short Cavity Er/Yb Fiber Grating Laser[J]. Acta Optica Sinica, 1999, 19(10): 327-1331 | |
| Authors: | Xu Yuanzhong Tan Huayao Du Weicong Liu Suihua |
| Abstract: | A short cavity Er/Yb fiber grating laser is demonstrated. Its resonant cavity is composed by two Bragg gratings which were UV written directly on a 30 mm photosensitive Er/Yb fiber. The two gratings were ~6 mm and 10 mm long, with 90% and 98.6% in reflectivity, 0.28 nm and 0.26 nm in 3 dB bandwidth, respectively. Pumped by a 980 nm diode laser, the associated fiber grating laser exhibits 8 mW thershold, ~14% slope efficieny, 30 dB polarisation mode suppression ratio. About 6 mW output power and 61 dB signal to noise ratio were obtained upon the maximum 50 mW 980 pump power in the experiment. |
| Keywords: | erbium/ytterbium codoped fiber fiber Bragg grating fiber grating laser. |
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