[2] Breer S, Buse K. Wavelength demultiplexing with volume phase holograms in photorefractive lithium niobate. Appl Phys B, 1998,66(3): 339~345
[3] An J W, Kim N, Lee K W. Volume holographic wavelength demultiplexer based on rotation multiplexing in the 90° geometry. Opt Comm, 200l,197(4-6): 247~254
[4] Lee K Y,An J W,Kim N. Experimental demonstration of 50 GHz-spaced 42-channel volumeholographic demultiplexer.Electronics Letters,2002,38(14):730~732
[5] Dittrich P, Montemezzani G, Günter P. Tunable optical filter for wavelength division multiplexing using dynamic interband photorefractive gratings.Opt Comm, 2002,214(1-6): 363~370
[6] Beyer O, Nee I, Havermeyer F,et al. Holographic recording of Bragg gratings for wavelength division multiplexing in doped and partially polymerized poly(methyl methacrylate). Appl Opt, 2003,42(1): 30~37
[7] OADM & Tunable Bandpass Filter with Volume Bragg Grating (VBG) in LiNbO3 Crystal. http://www.ondax.com
[9] Glass A, Linde D, Negran T. High-voltage bulk photovoltaic effect and photorefractive process in LiNbO3.Appl Phys Lett, 1974,25(4): 233~235
[10] Chen F S. Optically induced change of refractive indices in LiNbO3 and LiTaO3.J Appl Phys, 1969,40(8): 3389~3396
[12] Zhao J L, Zhang P, Zhou J B, et al. Visualizations of light-induced refractive index changes in photorefractive crystals employing digital holography. Chin Phys Lett, 2003,20(10): 1748~1751
[13] Matoba O, Itoh K, Ichioka Y. Array of photorefractive waveguides for massively parallel optical interconnections in lithium niobate.Opt Lett, 1996,21(2): 122~124