[2] ZENG A,CHON J.Ultra-high capacity and high speed DWDM optical devices for telecom and datacom applications[C].SPIE,2001,4581:13-20.

[3] MIAO Yang,GU C.Flattopped tunable wavelength-division multiplexer filter design[ J ].Appl Opt,1999,38 (9):1692-1699.

[5] DINGEL B B,ARUGA T.Properties of a novel noncascaded type,easy-to-design,ripple-free optical bandpass filter[J].J Lightwave Technol,1999,17(8):1461-1469.

[6] OFFREIN B J,BONA G L,HORST F,et al.Wavelength tunable optical add-after-drop filter with flat passband for WDM networks[J].IEEE Photon Technol Lett,1999,11(2):239-241.

[7] CARLOS F R,MATEUS C H C,LUKAS C,et al.Widely tunable torsional optical filter[J].IEEE Photon Technol Lett,2002,14(6):819-821.

[8] SHARP G D,DOROSKI D,JOHNSON K M.Rapidly switchable optical filter for color generation[J].Opt Lett,1991,16(11):875-877.

[9] TAYLOR H F.Tunable spectral slicing filters for dense wavelength-division multiplexing[J].J Lightwave Technol,2003,21(3):837-847.

[10] TAYLOR H F,EKNOYAN O.Guided wave acousto-optic and electro-optic tunable filter designs with relaxed beam-splitter requirement s[J].Appl Opt,2000,39(1):124-128.

[12] SHI Jian-hong,CHEN Xian-feng,ZHONG Xiao-xia,et al.Design of polarization-based interleaver filter for DWDM mux/demux[C].SPIE,2001,4581:348-355.

[13] ZHANG Juan,LIU Li-ren,ZHOU Yu.A tunable interleaver filter based on analog birefringent units[J].Opt Comm,2003,227(4-6):283-294.

[14] SHIGEHARA M,KENMOCHI T,SANO T,et al.Variable attenuation and wavelength filter[C].Proceeding of the 8th Microoptics Conference,2001:24-26.