All-Optical Switching Based on Azo Polymer Material
DENG Yan1, LUO Yan-Hua2, WANG Pei1, LU Yong-Hua1, MING Hai1,ZhANG Qi-Jing2
1Institute of Photonics, University of Science and Technology of China, Hefei 2300262Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026
All-Optical Switching Based on Azo Polymer Material
DENG Yan1;LUO Yan-Hua2;WANG Pei1;LU Yong-Hua1;MING Hai1,ZhANG Qi-Jing2
1Institute of Photonics, University of Science and Technology of China, Hefei 2300262Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026
摘要Conventional all-optical switches based on azo polymer films and the all-optical switches based on the attenuated total reflection (ATR) geometry are investigated. A conventional switch system, including a pump beam of 532nm and a probe beam of 650nm, is based on the photoinduced birefringence effect of azo polymer. An ATR switch in a prism-multilayer configuration is achieved by changing the reflectance of the probe beam with an external pump beam. The ATR method provides the substantial improvement of the speed and the efficiency of the modulation over the conventional method. Although the azo polymer response still remains relatively slow, an enhanced nonlinear refractive index of the azo polymer film can effectively increase the modulation.
Abstract：Conventional all-optical switches based on azo polymer films and the all-optical switches based on the attenuated total reflection (ATR) geometry are investigated. A conventional switch system, including a pump beam of 532nm and a probe beam of 650nm, is based on the photoinduced birefringence effect of azo polymer. An ATR switch in a prism-multilayer configuration is achieved by changing the reflectance of the probe beam with an external pump beam. The ATR method provides the substantial improvement of the speed and the efficiency of the modulation over the conventional method. Although the azo polymer response still remains relatively slow, an enhanced nonlinear refractive index of the azo polymer film can effectively increase the modulation.
DENG Yan;LUO Yan-Hua;WANG Pei;LU Yong-Hua;MING Hai;ZhANG Qi-Jing. All-Optical Switching Based on Azo Polymer Material[J]. 中国物理快报, 2007, 24(10): 2849-2851.
DENG Yan, LUO Yan-Hua, WANG Pei, LU Yong-Hua, MING Hai, ZhANG Qi-Jing. All-Optical Switching Based on Azo Polymer Material. Chin. Phys. Lett., 2007, 24(10): 2849-2851.
[1]Bishop D J, Giles C R and Das S R 2001 Sci. Am. 284 88 [2] Roy S, Sharma P, Dharmadhikari A K and Mathur D 2004 Opt.Commun. 237 251 [3] Nishizawa N, Ukai Y and Goto T 2005 Opt. Exp. 13 8128 [4] Janke C, Rivas J G, Bolivar P H and Kurz H 2005 Opt.Lett. 30 2357 [5] Banyal R K and Prasad B R 2005 Appl. Opt. 44 5497 [6] Ono H and Kawatsuki N 1999 Appl. Phys. Lett. 74 935 [7] Zia R, Selker M D, Catrysse P B and Brongersma M L 2004 J.Opt. Soc. Am. B 21 2442 [8] Marder S R and Perry J W 1994 Science 263 1706 [9] Krasavin A V and Zheludev N I 2004 Appl. Phys. Lett. 841416 [10] Park J H and Lee S D 2004 Mol. Cryst. Liq. Cryst. 412 1773 [11] Li Z, Ma H, Zhang Q and Ming H 2005 J. Optoelect. Adv.Mater. 7 1039 [12] Yacoubian A and Aye T M 1993 Appl. Opt. 32 3073 [13] Simon H J, Mitchell D E and Watson J G 1975 Am. J.Phys. 43 630 [14] Abeles F and Lopez-Rios T 1974 Opt. Commun. 11 89
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