[1] 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).

[2] Zhao Y C, Li T J, Jian S S et al. Investigation of chirped fiber gratings on chromatic dispersion and time delay[J]. Acta Optica Sinica, 119-122(1997).

[3] Zhang P K, Li Y L, Liu J Y et al. Improvement to dispersion property of a linearly chirped grating by optimizing the distribution of coupling coefficient[J]. Chinese Journal of Lasers, 26, 696-700(1999).

[4] Liu L, Wang M, Xi X M et al. Design and fabrication of low-loss long-period fiber gratings operating at 2 μm waveband[J]. Acta Optica Sinica, 39, 0306002(2019).

[5] Tao H, Mi Y A, Gu H et al. Properties of vector mode coupling in mechanically induced microbend long-period fiber gratings[J]. Acta Optica Sinica, 40, 1206003(2020).

[6] Meltz G, Morey W W, Glenn W H. In-fiber Bragg grating tap. [C]//Optical Fiber Communication, January 22, 1990, San Francisco, California. Washington, D.C.: OSA, TUG1(1990).

[7] Erdogan T, Sipe J E. Tilted fiber phase gratings[J]. Journal of the Optical Society of America A, 13, 296-313(1996).

[8] Guo T, Liu F, Shao L Y. Tilted fiber Bragg grating sensors[J]. Journal of Applied Sciences, 36, 75-103(2018).

[9] Luo B B, Yan Z J, Sun Z Y et al. Novel glucose sensor based on enzyme-immobilized 81° tilted fiber grating[J]. Optics Express, 22, 30571-30578(2014).

[10] Yan Z J, Sun Z Y, Zhou K M et al. Numerical and experimental analysis of sensitivity-enhanced RI sensor based on Ex-TFG in thin cladding fiber[J]. Journal of Lightwave Technology, 33, 3023-3027(2015).

[11] Luo B B, Xie L, Wang Y J et al. Performance optimization of excessively tilted fiber grating cantilever beam vibration sensor[J]. Acta Optica Sinica, 39, 0806006(2019).

[12] Westbrook P S, Strasser T A, Erdogan T. In-line polarimeter using blazed fiber gratings[J]. Optics and Photonics News, 12, 50(2001). http://www.opticsinfobase.org/OPN/abstract.cfm?uri=OPN-12-12-50

[13] Zhou K M, Simpson G, Chen X F et al. High extinction ratio in-fiber polarizers based on 45 degree tilted fiber Bragg gratings[J]. Optics Letters, 30, 1285-1287(2005).

[14] Yan Z J, Mou C B, Zhou K M et al. UV-inscription, polarization-dependent loss characteristics and applications of 45° tilted fiber gratings[J]. Journal of Lightwave Technology, 29, 2715-2724(2011).

[15] Yan Z J, Mou C B, Wang H S et al. All-fiber polarization interference filters based on 45°-tilted fiber gratings[J]. Optics Letters, 37, 353-355(2012).

[16] Mou C B, Zhou K M, Zhang L et al. Characterization of 45°-tilted fiber grating and its polarization function in fiber ring laser[J]. Journal of the Optical Society of America B, 26, 1905-1911(2009).

[17] Wang T X, Yan Z J, Mou C B et al. Narrow bandwidth passively mode locked picosecond erbium doped fiber laser using a 45° tilted fiber grating device[J]. Optics Express, 25, 16708-16714(2017).

[18] Lu B B, Zou C H, Huang Q Q et al. Widely wavelength-tunable mode-locked fiber laser based on a 45°-tilted fiber grating and polarization maintaining fiber[J]. Journal of Lightwave Technology, 37, 3571-3578(2019). http://ieeexplore.ieee.org/document/8718562

[19] Qin H B, He Q Y, Xing Z K et al. Numerical and experimental characterization of radiation mode of 45° tilted fiber grating[J]. Journal of Lightwave Technology, 37, 3777-3783(2019).

[20] Qin H B, He Q Y, Xing Z K et al. In-fiber single-polarization diffraction grating based on radiant tilted fiber grating[J]. Optics Letters, 44, 4407-4410(2019).

[21] Wang G Q, Wang C, Yan Z J et al. Highly efficient spectrally encoded imaging using a 45° tilted fiber grating[J]. Optics Letters, 41, 2398-2401(2016).

[22] Wang G, Habib U, Yan Z et al. Highly efficient optical beam steering using an in-fiber diffraction grating for full duplex indoor optical wireless communication[J]. Journal of Lightwave Technology, 36, 4618-4625(2018).

[23] Qin H B, He Q Y, Moreno Y et al. Compact linear polarization spectrometer based on radiation mode shaped in-fiber diffraction grating[J]. Optics Letters, 44, 5129(2019). http://www.researchgate.net/publication/336614690_Compact_linear_polarization_spectrometer_based_on_radiation_mode_shaped_in-fiber_diffraction_grating/download

[24] Bouzid A. Abushagur M A G. Scattering analysis of slanted fiber gratings[J]. Applied Optics, 36, 558-562(1997).

[25] Erdogan T. Cladding-mode resonances in short- and long-period fiber grating filters: errata[J]. Journal of the Optical Society of America A, 17, 2113(2000).

[26] Li Y, Froggatt M, Erdogan T. Volume current method for analysis of tilted fiber gratings[J]. Journal of Lightwave Technology, 19, 1580-1591(2001).

[27] Walker R B, Mihailov S J, Lu P et al. Shaping the radiation field of tilted fiber Bragg gratings[J]. Journal of the Optical Society of America B, 22, 962-974(2005).

[28] Li Y, Brown T G. Radiation modes and tilted fiber gratings[J]. Journal of the Optical Society of America B, 23, 1544-1555(2006). http://www.opticsinfobase.org/abstract.cfm?uri=josab-23-8-1544

[29] Guo X, Xing Z K, Qin H B et al. Study on polarization spectrum and annealing properties of 45°-tilted fiber gratings[J]. Chinese Optics Letters, 17, 050601(2019). http://www.opticsjournal.net/Articles/Abstract?aid=OJb5c69b51a98f6bca