[1] LIN Q, VAN CAMP M A, ZHANG H et al. Long-external-cavity distributed Bragg reflector laser with subkilohertz intrinsic linewidth[J]. Optics Letters, 37, 1989-1991(2012).

[2] KAPASI D P, EICHHOLZ J, MCRAE T et al. Tunable narrow-linewidth laser at 2 μm wavelength for gravitational wave detector research[J]. Optics Express, 28, 3280-3288(2020).

[3] ZHAO Y, LI Y, WANG Q et al. 100-Hz linewidth diode laser with external optical feedback[J]. IEEE Photonics Technology Letters, 24, 1795-1798(2012).

[4] LIU Y F, LIANG W. Compact narrow linewidth external cavity semiconductor laser realized by self-injection locking to Fabry-Perot cavity[J]. Chinese Journal of Lasers, 48, 1715001(2021).

[5] RAUCH S, SACHER J. Compact Bragg grating stabilized ridge waveguide laser module with a power of 380 mW at 780 nm[J]. IEEE Photonics Technology Letters, 27, 1737-1740(2015).

[6] KONG J, LUCIVERO V G, JIMÉNEZ-MARTÍNEZ R et al. Long-term laser frequency stabilization using fiber interferometers[J]. Review of Scientific Instruments, 86, 073104(2015).

[7] PAN B W, YU L Q, LU D. 20 kHz narrow linewidth Fiber Bragg grating external cavity semiconductor laser[J]. Chinese Journal of Lasers, 42, 0502007(2015).

[8] SUN G W, WEI F, ZHANG L. Low-noise external cavity semiconductor lasers based on polarization-maintaining fiber Bragg gratings[J]. Chinese Journal of Lasers, 45, 0601004(2018).

[9] SAMUTPRAPHOOT P, WEBER S, LIN Q et al. Passive intrinsic-linewidth narrowing of ultraviolet extended-cavity diode laser by weak optical feedback[J]. Optics Express, 22, 11592-11599(2014).

[10] HILL K O, FUJII Y, JOHNSON D C et al. Photosensitivity in optical fiber waveguides: Application to reflection filter fabrication[J]. Applied Physics Letters, 32, 647-649(1978).

[11] BAI J D, WANG J Y, WANG J M. Rapid measurement of laser linewidth based on Fiber-Delayed AOM-shifted self-heterodyne scheme[J]. Laser & Optoelectronics Progress, 53, 061407(2016).

[12] YIN Z Q, WU CH, GONG W Y. Voigt profile function and its maximum[J]. Acta Physica Sinica, 62, 123301(2013).

[13] HENRY C. Phase noise in semiconductor lasers[J]. Journal of Lightwave Technology, 4, 298-311(1986).

[14] AOYAMA K, YOKOTA N, YASAKA H. Strategy of optical negative feedback for narrow linewidth semiconductor lasers[J]. Optics Express, 26, 21159-21169(2018).

[15] [15] QI X Y. Research on phasefrequency noise linewidth acteristics of narrow linewidth semiconduct laser[D]. Changchun: Changchun University of Science Technology, 2019. (in Chinese).

[16] ZHANG Y, ZHANG T C, LI T Y. Phase noise measurement by F-P cavity[J]. Acta Optica Sinica, 20, 465-471(2000).