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Resonant cavities are used widely in the field of integrated optics due to their excellent frequency-selective properties. Based on the characteristics of resonant coupling between two photonic crystal ring resonators, four cavities with different sizes and waveguides, the demultiplexing of four wavelengths, i.e. 1310 nm, 1550 nm, 1600 nm and 1650 nm is realized. The numerical results obtained by the finite-difference time-domain method show that the output efficiency of the four wavelengths can be higher than 90% only by modulating the radii of the border rods of output waveguides. The presented device that has not only a compact size with 12 μ m× 17μm but also a high output efficiency, may have potential application in the future optical communication field.
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Keywords:
- photonic crystal ring resonator /
- microcavity /
- coupling resonance /
- wavelength multiplexer/demultiplexer
[1] Yablonovitch E 1987 Phys. Rev. Lett. 58 2059
[2] John S 1987 Phys. Rev. Lett. 58 2486
[3] Jin L, Li M Y, He J J 2011 Opt. Commun. 284 156
[4] Vahala K J 2003 Nature 424 839
[5] Vuckovic J, Loncar M, Mabuchi H, Scherer A 2001 Phys. Rev. E65 016608
[6] Lin X S, Chen X W, Lan S 2005 Chin. Phys. 14 2033
[7] Xiao S S, Liu L, Qiu M 2006 Opt. Express 14 2932
[8] Wu F F, Shen Y F, Wang Y C, Han K, Zhou J, Zhang Y, Chen Q2011 Acta Phys. Sin. 60 017801 (in Chinese) [吴芳芳,沈义峰, 王永春, 韩奎, 周杰, 张园, 陈琼 2011 60 017801]
[9] Yu T B, Huang J H, Liu N H, Yang J Y, Liao Q H 2010 Appl. Opt.49 2168
[10] Mao H B, Yang C L, Lai Z S 2004 Acta Phys. Sin. 53 2201 (inChinese) [茅惠兵, 杨昌利, 赖宗声 2004 53 2201]
[11] Rostami A, Nazari F, Banaei H A, Bahrami A 2010 PhotonicsNanostruct. Fundam. Appl. 8 14
[12] He L J, Xu X M, Liu N H, Yu T B, Fang L G 2010 J. Opt. 12065502
[13] Ye T, Xu X M 2010 Acta Phys. Sin. 9 6273 (in Chinese) [叶涛,徐旭明 2010 9 6273]
[14] Foresi J S, Villencuve P R, Ferra J, Thoen E R, Steinmeyer G, FanS, Joannopoulos J D, Kimerling L C, Smith H I, Ippen E P 1997Nature 390 143
[15] Kumar V D, Spinivas T, Selvarajana A 2004 Photonics Nanostruct.Fundam. Appl. 2 199
[16] Djavid M, Ghaffari A, Monifi F, Abrishamian M S 2008 PhysicaE 40 3151
[17] Djavid M, Monifi F, Ghaffari A, Abrishamian M S 2008 Opt.Commun. 281 4028
[18] Wu Y D, Shih T T, Lee J J 2009 Appl. Opt. 48 24
[19] Chu S T, Chaudhuri S K 1989 J. Lightwave Technol. 7 2033
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[1] Yablonovitch E 1987 Phys. Rev. Lett. 58 2059
[2] John S 1987 Phys. Rev. Lett. 58 2486
[3] Jin L, Li M Y, He J J 2011 Opt. Commun. 284 156
[4] Vahala K J 2003 Nature 424 839
[5] Vuckovic J, Loncar M, Mabuchi H, Scherer A 2001 Phys. Rev. E65 016608
[6] Lin X S, Chen X W, Lan S 2005 Chin. Phys. 14 2033
[7] Xiao S S, Liu L, Qiu M 2006 Opt. Express 14 2932
[8] Wu F F, Shen Y F, Wang Y C, Han K, Zhou J, Zhang Y, Chen Q2011 Acta Phys. Sin. 60 017801 (in Chinese) [吴芳芳,沈义峰, 王永春, 韩奎, 周杰, 张园, 陈琼 2011 60 017801]
[9] Yu T B, Huang J H, Liu N H, Yang J Y, Liao Q H 2010 Appl. Opt.49 2168
[10] Mao H B, Yang C L, Lai Z S 2004 Acta Phys. Sin. 53 2201 (inChinese) [茅惠兵, 杨昌利, 赖宗声 2004 53 2201]
[11] Rostami A, Nazari F, Banaei H A, Bahrami A 2010 PhotonicsNanostruct. Fundam. Appl. 8 14
[12] He L J, Xu X M, Liu N H, Yu T B, Fang L G 2010 J. Opt. 12065502
[13] Ye T, Xu X M 2010 Acta Phys. Sin. 9 6273 (in Chinese) [叶涛,徐旭明 2010 9 6273]
[14] Foresi J S, Villencuve P R, Ferra J, Thoen E R, Steinmeyer G, FanS, Joannopoulos J D, Kimerling L C, Smith H I, Ippen E P 1997Nature 390 143
[15] Kumar V D, Spinivas T, Selvarajana A 2004 Photonics Nanostruct.Fundam. Appl. 2 199
[16] Djavid M, Ghaffari A, Monifi F, Abrishamian M S 2008 PhysicaE 40 3151
[17] Djavid M, Monifi F, Ghaffari A, Abrishamian M S 2008 Opt.Commun. 281 4028
[18] Wu Y D, Shih T T, Lee J J 2009 Appl. Opt. 48 24
[19] Chu S T, Chaudhuri S K 1989 J. Lightwave Technol. 7 2033
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