[1] [1] Α. Μ. Streltsov, N. F. Borrelli. Study of femtosecond-laser-written waveguides in glasses [J]. J. Opt. Soc. Am. B, 2002, 19: 2496-2504

[2] [2] Κ Yamada, W. Watanabe, T. Toma In situ obervation of photoinduced refractive-index changes in filaments formed in glasses by femtosecond laser pulses[J]. Opt. Lett., 2001, 26: 19-21

[3] [3] Κ M. Davis, Κ Miura, N. Sugimoto. Writing waveguides in glass with a femtosecond laser [J]. Opt. Lett., 1996, 21: 1729-1731

[4] [4] M. Will, S. Nolte, B. N. Chichkov. Optical properties of waveguides fabricated in fused silica by femtosecond laser pulses[J]. Appl. Opt., 2002, 41: 4360-4364

[5] [5] A. Saliminia, N. T. Nguyen, M.-C. Nadeau. Writing optical waveguides in fused silica using 1 kHz femtosecond infrared pulses[J]. J. Appl. Phys., 2003, 93: 3724~3728

[6] [6] J. W. Chan, T. Huser, S. Risbud. Structural changes in fused silica after exposure to focused femtosecond laser pulses [J]. Opt. Lett., 2001, 26: 1726-1728

[7] [7] D. Horroelle, S. Wielandy, A. L. Gaeta. Infrared photosensitivity in silica glasses exposed to femtosecond laser pulses[J]. Opt. Lett., 1999, 24: 1311-1313

[8] [8] A. M. Streltsov, N. F. Borrellie. Fabrication and analysis of a directional coupler written in glass by nanojoule femtosecond laser pulses [J]. Opt. Lett., 2001, 26: 42-43

[9] [9] J. W. Chan, T. R. Huser, S. H. Risbud. Waveguide fabrication in fused silica using tightly focused femtosecond laser pulses [С]. SPIE, 2002, 4640: 129~136

[10] [10] L. Sudrie, M. Franco, B. Prade. Writing of permanent birefiingent microlayers in bulk fused silica with femtosecond laser pulses [J]. Opt. Commun., 1999, 171: 279-284

[11] [11] E. Bricchi, J. D. Mills, P. G. Kazansky. Birefiingent FYesnel zone plates in silica fabricated by femtosecond laser maching [J]. Opt. Lett., 2002, 27: 2200-2202

[12] [12] Η Kogelnik Coupled wave theory for thick hologram gratings [J]. The Bell System Techical Journal, 1969, 48:2909-2947