Numerical analysis of optical bistability based on Fiber Bragg Grating cavity containing a high nonlinearity doped-fiber
Numerical analysis of optical bistability based on Fiber Bragg Grating cavity containing a high nonlinearity doped-fiber
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DOI：
10.1016/j.optcom.2011.11.023
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发表时间：
2012-03
影响因子：
2.4
通讯作者：
Zhigang Zang
中科院分区：
文献类型：
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作者：
Zhigang Zang
提出了一种新的光纤双稳设计方案，即在两个光纤光栅中插入一根掺铒光纤，形成非线性法布里-珀罗腔（EDF FBG/F-P）。用非线性谐振理论结合传输矩阵法描述了该器件的工作原理。研究了不同参数下的光学双稳行为。结果表明，EDF FBG/F-P器件具有明显的优点，其阈值开关功率可降低到7 mW，比单一FBG器件降低约6个数量级。此外，超快的响应时间约35 ps也得到了证实。
We demonstrate a new optical bistability devise by using two Fiber Bragg Gratings (FBG), in which an erbium-doped fiber (EDF) is inserted to form a nonlinear Fabry–Perot cavity (EDF FBG/F–P). The operation principle of this device is described by the resonant nonlinearity theory combining with the transfer matrix method. The optical bistability behaviors under different parameters are investigated. It shows that EDF FBG/F–P device has an evident merit in reducing the threshold switching power to 7 mW, resulting in a reduction about 6 orders, compared with that of single FBG device. Moreover, the ultra-fast response time about 35 ps is also confirmed.