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A photonic crystal waveguide coupled structure can be constructed by placing two photonic crystal waveguides dosely and parallel to each other. A new type of high efficiency heterostructure four-wavelength wavelength division multiplexing is designed according to the theory of coupling and decoupling. The finite-difference time-domain method is used to simulate the efficiency of the device, and the simulated results show that higher transmittance is achieved by adjusting the refractive index of a row of dielectric rods. We further found that adding three pairs of rods in the incident medium can effectively reduce the reflection of the system to realize the efficient transport for four-wavelength and the transmittance can exceed 90%. The present device not only has a high transmission rate, but also its size is only 36 μm×17 μm and may have potential applications in future photonic integrated circuits.
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Keywords:
- photonic crystal /
- coupling /
- heterostructure /
- wavelength division multiplexing
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[2] John S 1987 Phys. Rev. Lett. 58 2486
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[11] Chen J, Li X L, Li H H, Wang Q K 2009 Acta Phys. Sin. 58 6216 (in Chinese) [陈 健、李小丽、李海华、王庆康 2009 物理学报 58 6216]
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[13] Boscolo S, Midrio M, Krauss T F 2002 Opt. Lett. 27 1001
[14] Zhu G X, Yu T B, Chen S W, Shi Z, Hu S J, Lai Z Q, Liao Q H, Huang Y Z 2009 Acta Phys. Sin. 58 1014 (in Chinese)[朱桂新、于天宝、陈淑文、石 哲、胡淑娟、赖珍荃、廖清华、黄永箴 2009 物理学报 58 1014]
[15] Ren G, Zhang W H, Wang K, Du X Y, Xing M X, Chen L H 2008 Chin. Phys. B 17 2553
[16] Shen X P, Han K, Li H P, Shen Y F, Wang Z Y 2008 Acta Phys. Sin. 57 1737 (in Chinese)[沈晓鹏、韩 奎、李海鹏、沈义峰、王子煜 2008 物理学报 57 1737]
[17] Koshiba M 2001 IEEE J. Lightwave Technol. 19 1970
[18] Martinez A, Cuesta F, Marti J 2003 IEEE Photon. Technol. Lett. 15 694
[19] Boscolo S, Midrio M, Someda C G 2002 IEEE J. Quantum Electron. 38 47
[20] Shi Y, Dai D, He S 2006 IEEE Photon. Technol. Lett. 18 2293
[21] Chien F S, Hsu Y, Hsieh W, Cheng S 2004 Opt. Express 12 1119
[22] Yu T B, Wang M H, Jiang X Q, Yang J Y 2006 Acta Phys. Sin. 55 1851 (in Chinese)[于天宝、王明华、江晓清、杨建义 2006 物理学报 55 1851]
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[1] Yablonovitch E 1987 Phys.Rev. Lett. 58 2059
[2] John S 1987 Phys. Rev. Lett. 58 2486
[3] Yu T B, Liu N H 2004 Acta Phys. Sin. 53 3049 (in Chinese)[于天宝、刘念华 2004 物理学报 53 3049]
[4] Mekis A, Chen J C, Kurland I, Fan S, Villeneuve P R, Joannopoulos J D 1996 Phys. Rev. Lett. 77 3787
[5] Du X Y, Zheng W H, Zhang Y J, Ren G, Wang K, Xing M X, Chen L H 2008 Acta Phys. Sin. 57 7005 (in Chinese)[杜晓宇、郑婉华、张冶金、任 刚、王 科、邢名欣、陈良惠 2008 物理学报 57 7005]
[6] Liu Z Q, Feng T H, Dai Q F, Wu L J, Lan S 2009 Chin. Phys. B 18 2383
[7] Yan H T, Wang M, Ge Y X, Yu P 2009 Chin. Phys. B 18 2389
[8] Chen X J, Wu L J, Hu W, Lan S 2009 Acta Phys. Sin. 58 1025 (in Chinese)[陈小军、吴立军、胡 巍、兰 胜 2009 物理学报 58 1025]
[9] Feng T H, Dai Q F, Wu L J, Guo Q, Hu W, Lan S 2008 Chin. Phys. B 17 4533
[10] Xu Z L, Wu F G 2009 Acta Phys.Sin.58 6285 (in Chinese)[许振龙、吴福根 2009 物理学报 58 6285]
[11] Chen J, Li X L, Li H H, Wang Q K 2009 Acta Phys. Sin. 58 6216 (in Chinese) [陈 健、李小丽、李海华、王庆康 2009 物理学报 58 6216]
[12] Sharkawy A, Shi S, Prather D, Soref R 2002 Opt. Express 10 1048
[13] Boscolo S, Midrio M, Krauss T F 2002 Opt. Lett. 27 1001
[14] Zhu G X, Yu T B, Chen S W, Shi Z, Hu S J, Lai Z Q, Liao Q H, Huang Y Z 2009 Acta Phys. Sin. 58 1014 (in Chinese)[朱桂新、于天宝、陈淑文、石 哲、胡淑娟、赖珍荃、廖清华、黄永箴 2009 物理学报 58 1014]
[15] Ren G, Zhang W H, Wang K, Du X Y, Xing M X, Chen L H 2008 Chin. Phys. B 17 2553
[16] Shen X P, Han K, Li H P, Shen Y F, Wang Z Y 2008 Acta Phys. Sin. 57 1737 (in Chinese)[沈晓鹏、韩 奎、李海鹏、沈义峰、王子煜 2008 物理学报 57 1737]
[17] Koshiba M 2001 IEEE J. Lightwave Technol. 19 1970
[18] Martinez A, Cuesta F, Marti J 2003 IEEE Photon. Technol. Lett. 15 694
[19] Boscolo S, Midrio M, Someda C G 2002 IEEE J. Quantum Electron. 38 47
[20] Shi Y, Dai D, He S 2006 IEEE Photon. Technol. Lett. 18 2293
[21] Chien F S, Hsu Y, Hsieh W, Cheng S 2004 Opt. Express 12 1119
[22] Yu T B, Wang M H, Jiang X Q, Yang J Y 2006 Acta Phys. Sin. 55 1851 (in Chinese)[于天宝、王明华、江晓清、杨建义 2006 物理学报 55 1851]
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