[1] Mu Xiaodong, Stephanie Meissner, Helmuth Meissner, et al. High efficiency Yb:YAG crystalline fiber-waveguide lasers[J]. Optics Letters, 2001, 39(21):6331-6333.
[2] Mu Xiaodong, Helmuth Meissner, Huai-Chuan Lee. True crystalline fibers:double-clad LMA design concept of Tm:YAG-Core fiber and mode simulation[C]//SPIE, 2012, 8237:8237M-1-5.
[3] Liao Suying, Gong Mali. New progress of large mode area fiber[J]. Infrared and Laser Engineering, 2011,40(3):455-462. (in Chinese)廖素英, 巩马理. 大模场光纤研究的新进展[J]. 红外与激光工程, 2011, 40(3):455-462.
[4] Bhatcharya J C. Measurement of the refractive index using the Talbot effect and moire techniques[J]. Applied Optics, 1989, 28(13):2600-2604.
[5] Yeh Y, Yen Liang. Simultaneous measurement of refractive index and thickness of brefringent wave plates[J]. Appl Opt, 2008, 47(10):1457-1464.
[6] Dalmon M, Masumura A. High accuracy measurement of the refractive index and its temperature coefficient of calcium fluoride in a wide wavelength range from 138 to 2326[J]. Applied Optics, 2002, 41(25):5275-5281.
[7] Burnett J H, Gupta R, Griesmann U. Absolute refractive indices and thermal coefficient of CaF2, SrF2, BaF2, and LiF near 157 nm[J]. Appl Opt, 2002, 41(13):2508-2513.
[8] Galli M, Marabelli F, Guizzetti G. Direct measurement of refractive-index dispersion of transparent media by white-light interferometry[J]. Appl Opt, 2003, 42(19):3010-3914.
[9] Yasuaki Hori, Akiko Hirai, Kaoru Minoshima, et al. High-accuracy interferometer with a prism pair for measurement of the absolute refractive index of glass[J]. Applied Optics, 2009, 48(11):2045-2049.
[10] White K I. Practical application of the refracted near-field technique for the measurement of optical fiber refractive index profile[J]. Opt Quantum Electron, 1976, 11(4):669-671.
[11] Morishita K. Index profiling of three-dimensional optical waveguides by the propagation-mode near-filed method[J]. Light Wave Technology, 1986, 4(8):1120-1124.
[12] Pogossian S P. A new approach to determining the waveguide mode index distribution[J]. Opt Quantum, 1993, 25(2):417-422.
[13] Vladimir A B, Anton V B, Denis E P. Direct method determination of the equivalent refractive index profile of the multimode optical fiber by measured impulse responses due to scanning output fiber end[C]//SPIE, 2015, 9533:95330W-1.
[14] Marcuse D. Refractive index determination by the focusing method[J]. Appl Opt, 1979, 18(1):9-13.
[15] Ikeda M, Tateda M, Yoshikiyo H. Refractive index profile of a graded index fiber, measurement by a reflection method[J]. Applied Optics, 1975, 14(4):814-815.
[16] Zhou Hongying, Chen Jiabi, Hu Qunhua, et al. Investigation of scan to measure the distributing of refraction ratio of section plane[J]. Infrared and Laser Engineering, 2007, 36(S1):159-161.(in Chinese)周鸿颖, 陈家璧,胡群华, 等. 利用扫描法测量预制棒折射率[J]. 红外与激光工程, 2007, 36(S1):159-161.
[17] Hamza A A, Mabrouk M A. Determination of GR-IN optical fiber parameters from transverse interferograms considering the refraction of incident ray by the fiber[J]. Optical Communications, 2001, 200(1-6):131-138.
[18] Yan X, Liu L. Determining the optical properties of highly oriented fibers using a multiple-beam technique[J]. Journal of Optics A:Pure Applied Optics, 2001, 3(5):421-427.
[19] Hamza A A, Sokkar T Z N, Ghander A M, et al. On the determination of the refractive index of a fiber:II. graded index fibers[J]. Pure Applied Optics, 1995, 4:161-177.