1. Roger H. Stolen and John E. Bjorkholm, IEEE Journal of Quantum Electronics QE-18, 1062 (1982).
2. Ma Yanxing, Si Lei, Wang Xiaolin, Zhou Pu and Xu Xiaojun, Optoelectronics Letters 5, 18 (2009).
3. Provino L., Maillotte H., Lantz E., Sylvestre T. and Dudley J. M., Lasers and Electro-Optics Europe, Conference Digest, 1 (2000).
4. Govind P. Agrawal, Nonlinear Fiber Optics (The 3rd Edition), World Publishing Corporation, 389 (2001).
5. Bingxin Li and Rongjin Yu, Optoelectronics Letters 5, 364 (2009).