[1] Ye Q, Pan Z Q, Wang Z Y et al. Progress of research and applications of phase-sensitive optical time domain reflectometry[J]. Chinese Journal of Lasers, 44, 0600001(2017).

[2] Zhu R, Zhou J, Liu J Q et al. Solid state tunable single-frequency laser based on non-planar ring oscillator[J]. Chinese Journal of Lasers, 38, 1102011(2011).

[3] Numata K, Jeffrey R C, Jordan C. Fiber laser development for LISA[J]. Journal of Physics: Conference Series, 228, 012043(2010). http://arxiv.org/abs/1003.3687

[4] Stolpner L, Lee S, Li S et al. Low noise planar external cavity laser for interferometric fiber optic sensors[C]. SPIE, 7004, 700457(2008).

[5] Alalusi M, Brasil P, Lee S et al. Low noise planar external cavity laser for interferometric fiber optic sensors[C]. SPIE, 7316, 73160X(2009).

[6] Numata K, Camp J, Krainak M A et al. Performance of planar-waveguide external cavity laser for precision measurements[J]. Optics Express, 18, 22781-22788(2010). http://europepmc.org/abstract/MED/21164616

[7] Numata K, Alalusi M, Stolpner L et al. Characteristics of the single-longitudinal-mode planar-waveguide external cavity diode laser at 1064 nm[J]. Optics Letters, 39, 2101-2104(2014). http://europepmc.org/abstract/med/24686685

[8] Ilchenko V S, Dale E, Liang W et al. Compact tunable kHz-linewidth semiconductor laser stabilized with a whispering-gallery mode microresonator[C]. SPIE, 7913, 79131G(2011).

[9] Dale E, Liang W, Eliyahu D et al. On phase noise of self-injection locked semiconductor lasers[C]. SPIE, 8960, 89600X(2014).

[10] Fan Y W, Oldenbeuving R M, Roeloffzen C G et al. 290 Hz Intrinsic Linewidth from an Integrated Optical Chip-based Widely Tunable InP-Si3N4 Hybrid Laser. [C]∥Proceedings of Conference on Lasers and Electro-Optics, CLEO: Applications and Technology, San Jose, California,USA, JTh5C, 9(2017).

[11] Bartolo R E, Kirkendall C K, Kupershmidt V et al. Achieving narrow linewidth low-phase noise external cavity semiconductor lasers through the reduction of 1/f noise[C]. SPIE, 6133, 61330I(2006).

[12] Loh W. O'donnell F J, Plant J J, et al. Packaged, high-power, narrow-linewidth slab-coupled optical waveguide external cavity laser (SCOWECL)[J]. IEEE Photonics Technology Letters, 23, 974-976(2011).

[13] Pan B W, Yu L Q, Lu D et al. 20 kHz narrow linewidth fiber Bragg grating external cavity semiconductor laser[J]. Chinese Journal of Lasers, 42, 0502007(2015).

[14] Lynch S G, Holmes C, Berry S A et al. External cavity diode laser based upon an FBG in an integrated optical fiber platform[J]. Optics Express, 24, 8391-8398(2016). http://www.ncbi.nlm.nih.gov/pubmed/27137276

[15] Zhang L, Wei F, Sun G et al. Thermal tunable narrow linewidth external cavity laser with thermal enhanced FBG[J]. IEEE Photonics Technology Letters, 29, 385-388(2017). http://ieeexplore.ieee.org/document/7819549/

[16] Xu D, Lu B, Yang F et al. Narrow linewidth single-frequency laser noise measurement based on a 3×3 fiber coupler[J]. Chinese Journal of Lasers, 43, 0102004(2016).

[17] Xu D, Yang F, Chen D J et al. Laser phase and frequency noise measurement by Michelson interferometer composed of a 3×3 optical fiber coupler[J]. Optics Express, 23, 22386-22393(2015). http://www.ncbi.nlm.nih.gov/pubmed/26368208