[1] [1] Q. Feng, B. Zhang, C. Cui, C. Kuang, Y. Zhai, and F. You, Opt. Express 21, 25805 (2013).

[2] [2] K. Fan and M. Chen, Precis. Eng. 24, 15 (2000).

[3] [3] Y. Le, W. Hou, K. Hu, and K. Shi, Opt. Lett. 38, 3600 (2013).

[4] [4] R. C. Twu, R. T. Liao, and H. C. Su, in Proceedings of IEEE ICP 1 (2011).

[5] [5] D. Zheng, X. Wang, and F. Tang, Chin. Opt. Lett. 5, 403 (2007).

[6] [6] C. Wu and Y. Chuang, Sensor. Actuator. Phys. 116, 4(2004).

[7] [7] Z. Liu, D. Lin, H. Jiang, and C. Yin, Sensor. Actuator. Phys. 104, 127 (2003).

[8] [8] E. Plosker, D. Bykhovsky, and S. Arnon, Appl. Opt. 52, 5158 (2013).

[9] [9] E. Shi, J. Guo, Z. Jia, and Y. Huang, in Proceedings of IEEE ICP 2722 (2008).

[10] [10] Y. Zhai, Q. Feng, and B. Zhang, Opt. Laser Technol. 44, 839 (2012).

[11] [11] R. Cao, B. Zhang, and Q. Feng, Acta Opt. Sin. (in Chinese) 28, 2344 (2008).

[12] [12] C. Liu, H. Huang, and H. Lee, Appl. Opt. 48, 2767(2009).

[13] [13] Z. Zhang, C. K. Sun, and P. Wang, Chin. Opt. Lett. 10, 071501 (2012).

[14] [14] L. Liu and Z. Zhao, Trans. Inst. Meas. Contr. 35, 384 (2013).

[15] [15] K. Yang, A. Zeng, X. Wang, H. Wang, and F. Tang, Chin. Opt. Lett. 6, 568 (2008).

[16] [16] Z. Li, Z. Ding, and F. Yuan, Chin. Opt. Lett. 6, 564 (2008).