[1] [1] P Russell. Photonic crystal fibers[J]. Science, 2003, 299(5605): 358-362.

[2] [2] Zhang Yin, Chen Mingyang, Zhang Yongkang. Investigation of a novel large-mode-area photonic crystal fiber transmission system and its transmission characteristics[J]. Chinese J Lasers, 2012, 39(12): 1205001.

[3] [3] Cao Ye, Wang Jiangyun, Tong Zhengrong. High birefringence and low confinement loss photonic crystal fiber with multiple zero dispersion points based on micro-structured core[J]. Chinese J Lasers, 2013, 40(9): 0905005.

[4] [4] M Baumgartl, F Jansen, F Stutzki, et al.. High average and peak power femtosecond large-pitch photonic-crystal-fiber laser[J]. Opt Lett, 2011, 36(2): 244-246.

[5] [5] J Villatoro, V Finazzi, G Badenes, et al.. Highly sensitive sensors based on photonic crystal fiber modal interferometers[J]. Journal of Sensors, 2009.

[6] [6] O Levi, M M Lee, J Zhang, et al.. Sensitivity analysis of a photonic crystal structure for index-of-refraction sensing[C]. SPIE, 2007. 6447.

[7] [7] O Frazo, J L Santos, F M Araújo, et al.. Optical sensing with photonic crystal fibers[J]. Laser and Photonics Reviews, 2008, 2(6): 449-459.

[8] [8] D J J Hu, J L Lim, Y Cui, et al.. Fabrication and characterization of a highly temperature sensitive device based on nematic liquid crystal-filled photonic crystal fiber[J]. IEEE Photonics Journal, 2012, 4(5): 1248-1255.

[9] [9] Yinian Zhu, Ping Shum, Huiwen Bay, et al.. Strain-insensitive and high-temperature long-period gratings inscribed in photonic crystal fiber[J]. Opt Lett, 2005, 30(4): 367-369.

[10] [10] Tigran Baghdasaryan, Thomas Geernaert, Francis Berghmans, et al.. Geometrical study of a hexagonal lattice photonic crystal fiber for efficient femtosecond laser grating inscription[J]. Opt Express, 2011, 19(8): 7705-7716.

[11] [11] NanKuang Chen, Sien Chi. Influence of a holey cladding structure on spectral characteristics of side-polished endlessly single-mode photonic crystal fibers[J]. Opt Lett, 2006, 31(15): 2251-2253.

[12] [12] B H Lee, J B Eom, J Kim, et al.. Photonic crystal fiber coupler[J]. Opt Lett, 2002, 27(10): 812-814.

[13] [13] Yu Jinbo, Chen Zhe, Luo Yunhan, et al.. A fused side-adhered optical fiber coupler based on side-polished fibers[J]. J Optoelectronics·Laser, 2013, 24(5): 897-902.

[14] [14] Bi Weihong, Xu Rui, Fu Guangwei, et al.. Design of 40× long working distance PCF splice system microscope objectives[J]. Opto-Electronic Engineering, 2013, 40(1): 44-50.

[15] [15] J Holdsworth, K Cook, J Canning, et al.. Rotationally variant grating writing in photonic crystal fibres[J]. The Open Optics Journal, 2009, 3(1): 19-23.

[16] [16] G D Marshall, D J Kan, A A Asatryan, et al.. Transverse coupling to the core of a photonic crystal fiber: The photo-inscription of gratings[J]. Opt Express, 2007, 15(12): 7876-7887.

[17] [17] J Petrovic, T Allsop. Scattering of the laser writing beam in photonic crystal fibre[J]. Opt Laser Technol, 2010, 42(7): 1172-1175.

[18] [18] Tigran Baghdasaryan, Thomas Geernaert, Martin Becker, et al.. Influence of fiber orientation on femtosecond Bragg grating inscription in pure silica microstructured optical fibers[J]. IEEE Photon Technol Lett, 2011, 23(23): 1832-1834.

[19] [19] L Y Zang, T G Euser, M S Kang, et al.. Side-scattering analysis of structural rocking filters in photonic crystal fiber[C]. Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, 2010: BThC5.

[20] [20] L Y Zang, T G Euser, M S Kang, et al.. Structural analysis of photonic crystal fibers by side scattering of laser light[J]. Opt Lett, 2011, 36(9): 1668-1670.

[21] [21] R D Meade, K D Brommer, A M Rappe, et al.. Existence of a photonic band gap in two dimensions[J]. Appl Phys Lett, 1992, 61(4): 495-497.

[22] [22] R Hillebrand, W Hergert, W Harms. Theoretical band gap studies of two-dimensional photonic crystals with varying column roundness[J]. Physica Status Solidi B: Basic Research, 2000, 217(2): 981-989.