[2] Ren C, Zhang S. Diode-pumped dual-frequency microchip Nd:YAG laser with tunable frequency difference [J]. Journal of Physics D: Applied Physics, 2009, 42(15): 155107.
[3] Silvano Donati. Developing self-mixing interferometry for instrumentation and measurements [J]. Laser Photonics Rev, 2012, 3(6): 393-417.
[4] Wan Xinjun, Duo Li, Zhang Shulian. Quasi-common-path laser feedback interferometry based on frequency shifting and multiplexing[J]. Opt Lett, 2007, 32(4): 367-369.
[5] Fei L, Zhang S. The discovery of nanometer fringes in laser self-mixing interference[J]. Optics Communications, 2007, 273(1): 226-230.
[6] Zhu Kaiyi, Guo Bo, Lu Yueyue, et al. Single-spot two-dimensional displacement measurement based on self-mixing interferometry[J]. Optica, 2017, 4(7): 729-735.
[7] Li Jiang, Tan Yidong, Zhang Shulian. Generation of phase difference between self-mixing signals in a-cut Nd:YVO4 laser with a waveplate in the external cavity[J]. Optics Letters, 2015, 40(15): 3615-3618.
[8] Kazutaka Abe, Kenju Otsuka, Jing-Yuan Ko. Self-mixing laser Doppler vibrometry with high optical sensitivity: application to real-time sound reproduction[J]. New Journal of Physics, 2003, 5: 8.1-8.9.
[9] Zhang Shulian. Theory of Orthogonal Polarized Laser[M]. Beijing: Tsinghua University Press, 2005: 99-209. (in Chinese)
[10] Zhang Shulian, Holzapfel W. Orthogonal Polarization in Lasers: Physical Phenomena and Engineering Applications [M]. Beijing: Tsinghua University Press, 2013: 145-382. (in Chinese)
[11] Tan Yidong, Zhang Shulian, Zhang Song, et al. Response of microchip solid-state laser to external frequency-shifted feedback and its applications[J]. Scientific Reports, 2013, 3: 2912.
[12] Kenju Otsuka, Kazutaka Abe, Jing-Yuan Ko. Real-time nanometer-vibration measurement with a self-mixing microchip solid-state laser[J]. Optics Letters, 2002, 27(15):1339-1341.
[13] Zhang Shaohui, Zhang Shulian, Tan Yidong, et al. Common-path heterodyne self-mixing interferometry with polarization and frequency multiplexing[J]. Optics Letters, 2016, 41(20): 4827-4830.
[14] Zhang Shaohui, Zhang Shulian, Sun Liqun, et al. Spectrum broadening in optical frequency-shifted feedback Nd:YVO4 microchip laser[J]. IEEE Photonics Technology Letters, 2016, 28(14): 1593-1596.
[15] Tan Y, Zhang S, Zhang Y. Laser feedback interferometry based on phase difference of orthogonally polarized lights in external birefringence cavity[J]. Optics Express, 2009, 17(16): 13939-13945.
[16] Li Jiyang, Niu Yanxiong, Chen Sanbin, et al. Laser diode side-pumped Nd:YVO4 microchip laser with film-etched microcavity mirrors[J]. Journal of the Optical Society of America A, 2017, 34(10): 1787-1792.