1、1; 71; 71 os; 1o ! OADM/OXCb; 71 ; 71 Y; 71. 71b d ; 71 aAao; 71;08 71b o; 711; a ;aQ a;Ea a;bv# 2;b “ - g X Y; 7 1a. 71a; 71a ; 71a ;r;71aA; 71 b; 711 p1. l12. vh;13. 4. l z 5. G 6. ;8r q7. qjl8. 71 zSwitch TechnologiesSLOW SWITCHES (ms) Micro-optical -electro-mechanical (MOEMS) Thermo-Optic Bubble
2、 Liquid Crystal HolographicAcousto-OpticFAST SWITCHES (ns)SOA (InP) Electro-optic (LiNbO3) Non-linear REQUIREMENTS Matrix size 1000x1000 100x100 packet switch Scalability grow easily Reconfiguration speed 50 ns for SDH ns for packet switch Low loss/polarisation sensitivity Low size/power/cost2o; 71
3、o; 71T V ;ra 0ra ;ra lra 2;rb VTZ T Ao; 71 Vs aaQ lbv ;ro; 71 71 ya qla a 71h;1M M v+b T 1 2 1 2M-Z 3 NTT NN; 71 ; 71T _ LHqY /L L/Lc234102413Lc0/21cLL q= +q=0,1,2,3 -22(/ ) ( /) (2)cLL L q+ =0/2(21)cLL q= +-HqY 222(/ ) ( /) (4)cLL L q+ =2 1/22222001( /)sin 142(LL L +=+ 4/L L/Lc0481224681012 ; 71+ y
4、i 5b,W#; 71 (BOA)53DOS; 71YaX 3; 71 6Appl. Phys. Lett., 1992, 60(6), p.2843d X; 71 ; 3; 7118 3; 71 7 Ys 3 71 VOA ; DOS+ r q 1“ v b1 6 3; 7170“BSFBY-branch area Electrode Heater # h| 200310108408.2 =Q ; 71T Q uY Y = Q ; 71 Uim8(a) em (b) Uim; 71 Uim ;8;8X = Q ; 71 UimX ; 719 =Q ; 71Ti/Au ElectrodeRef
5、lection AreaWaveguide0 50 100 150 20050403020100Input 1 to Output 4 (cross)Input 1 to Output 3 (bar)Input 2 to Output 3 (cross)Input 2 to Output 4 (bar)Normalized Output(dB)Driving Power (mW)Appl. Phys. Lett., 2002, 81(16), p. 2947 ? ZL 01 139124.3; =Q ; 71IEEE Photonics Technology Letters 2004, 16(2), p.443 ? ZL 00122310.0 10 =Q ; 71+ jl“ 1vbAgilent A; 7111
