[1] Zhou Can-lin, Si Shu-chun, Gao Cheng-yong and Lei Zhen-kun, Journal of Optoelectronics·Laser 24, 1784 (2013). (in Chinese)

[2] Lohry William, Chen Vincent and Zhang Song, Optics Express 22, 1287 (2014).

[3] Dai Shi-jie, Shao Meng, Wang Zhi-Ping and Li Wei-chao, Journal of Optoelectronics·Laser 25, 1540 (2014). (in Chinese)

[4] Deng Fuqin, Liu Chang, Sze Wuifung, Deng Jiangwen, Fung Kenneth S. M., Leung Winghong and Lam Edmund Y, Optical Engineering 51, 1487 (2012).

[5] Feipeng Da, Luyang Wang and Luyao Hu, Optics & Laser Technology 44, 2332 (2012).

[6] Han Pei-Yu, Da Fei-Peng and Gai Shao-Han, Journal of Optoelectronics·Laser 21, 1359 (2010). (in Chinese)

[7] Cheng Xiangcheng, Lu Chao, Ma Mengchao, Mao Xuesong and Mei Tao, Optics Communications 298, 54 (2013).

[8] HU Lu-yao, DA Fei-peng and WANG Lu-yang, Acta Optics Sinica 32, 129 (2012). (in Chinese)

[9] Song Limei, Dong Xiaoxiao, Xi Jiangtao, Yu Yanguang and Yang Chaokui, Optics & Laser Technology 45, 319 (2013).

[10] Song Li-mei, Chen Chang-man, Chen Zhuo, Xi Jiang- tao and Yu Yan-guang, Optoelectronics Letters 9, 143 (2013).

[11] Song Limei, Chang Yulan, Li Zongyan, Wang Pengqiang, Xing Guangxin and Xi Jiangtao, Optics Express 22, 13641 (2014).

[12] D. Caspi, N. Kiryati and J. Shamir, IEEE Transactions on Pattern Analysis and Machine Intelligence 20, 470 (1998).