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本文设计了两种具有微结构纤芯的光子晶体光纤（PCFs）——矩形芯和椭圆芯PCFs，利用电磁场散射的多极理论研究了这两种光纤的基本特性.发现在光纤包层气孔不变的情况下，仅通过调节纤芯气孔的大小就可以灵活地调节光纤的双折射、色散和非线性特性.随着纤芯气孔半径r1的增大，两种纤芯结构的PCFs表现出如下特点：双折射度增大且最大双折射度对应的波长发生红移，零色散波长由一个增加到三个，短波段非线性系数增大而长波段非线性系数减小.r1=0.4 μm的椭圆芯PCFs的三个零色
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关键词:
- 微结构纤芯光子晶体光纤 /
- 双折射 /
- 色散 /
- 非线性
Photonic crystal fibers（PCFs）with rectangle core and elliptical core have been designed.Their fundamental characteristics are studied by electromagnetic scattering theory of multipole method.It is found that the fiber birefringence,dispersion and nonlinear characteristics can be flexibly adjusted by changing the radius of the air holes in the core.The PCFs have the following characteristics: With the increase of radius r1 of air holes in the core,the birefringence increases and the wavelength corresponding to the maximum birefringence shifts towards the longer wavelength region,the number of zero-dispersion-wavelengths increases from one to three and nonlinear coefficient of the short-wave band decreases while it increases in the longer wavelength region.The three zero-dispersion-wavelengths of elliptical core PCFs with r1 = 0.4 μm are located in visible,near-infrared and mid-infrared band,respectively.For similar structural parameters,elliptical core PCFs can achieve high birefringence and high nonlinearity more readily than rectangular core PCFs.[1] ［1］Birks T A, Knight J C, Russell P S J 1997 Opt. Lett. 22 961
[2] ［2］ Knight J C, Birks T A, Russell P S J, Atkin D M 1996 Opt. Lett. 21 1547
[3] ［3］ Knight J C, Broeng J, Birks T A, Russel P S J 1998 Sci. 282 1476
[4] ［4］ Yang T J, Shen L F, Chau Y F, Sung M J, Chen D, Tsai D P 2008 Opt. Commun. 281 4334
[5] ［5］ Wang J Y, Jiang C, Hu W S, Gao M Y, Ren H L 2007 Opt. Laser. Technol. 39 913
[6] ［6］ Begum F, Namihira Y, Razzak S. M. A, Kaijage S, Hai N H, Kinjo T, Miyagi K, Zou N 2009 Opt. Commun. 282 1416
[7] ［7］ Zhang F D, Liu X Y, Zhang M, Ye P D 2006 Acta Phys. Sin. 55 6447 (in Chinese) ［张方迪、刘小毅、张民、叶培大 2006 55 6447］
[8] ［8］ Lou S Q, Ren G B, Yan F P, Jian S S 2005 Acta Phys. Sin. 54 1229 (in Chinese)［娄淑琴、任国斌、延凤平、简水生 2005 54 1229］
[9] ［9］ Wang Q Y, Hu M L, Chai L 2006 Chinese J. Lasers 33 57 (in Chinese) ［王清月、胡明列、柴路 2006 中国激光 33 57］
[10] ］ Li S G, Liu X D, Hou L T 2004 Chinese J. Lasers 31 713 (in Chinese) ［李曙光、刘晓东、侯蓝田 2004 中国激光 31 713］
[11] ］ Yan F P, Li Y F, Wang L, Gong T R, Liu P, Liu Y, Tao P L, Qu M X, Jian S S 2008 Acta Phys. Sin. 57 5735 (in Chinese)［延凤平、李一凡、王琳、龚桃荣、刘鹏、刘洋、陶沛琳、曲美霞、简水生 2008 57 5735］
[12] ］ Liu X Y, Zhang F D, Zhang M, Ye P D 2007 Acta Phys. Sin. 56 301 (in Chinese) ［刘毅、张方迪、张民、叶培大 2007 56 301］
[13] ］ Suzuki K, Kubota H, Kawanishi S 2001 Opt. Express 9 676
[14] ］ Saitoh K, Koshiba M 2002 IEEE Photonic Techl. 14 1291
[15] ］ Koshiba M, Saitoh K 2003 Appl. Optics 42 6267
[16] ］ White T P, Kuhlmey B T, Mcphedran R C, Maystre D, Renversez G, Martijin C de S, Botten L C 2002 J. Opt. Soc. Am. B 19 2322
[17] ］ Kuhlmey B T, White T P, Renversez G, Maystre D, Botten L C, Martijin C de S, Mcphedran R C 2002 J. Opt. Soc. Am. B 19 2331
[18] ］ Fang H, Lou S Q, Guo T Y, Jian S S 2007 Acta Optica Sinca 27 202 (in Chinese) ［方宏、娄淑琴、郭铁英、简水生 2007 光2学学报 27 202］
[19] ］ Zhang L, Li S G 2010 arXiv:20090838 ［PCF］
[20] ］ Fu B, Li S G 2009 arXiv:20090260 ［PCF］
[21] ］ Yang Q Q, Hou L T 2009 arXiv:20090523 ［PCF］
[22] ］ Begum F, Namihira Y, Razzak S. M. A, Kaijage S, Hai N H, Kinjo T, Miyagi K, Zou N Y 2009 Opt Laser Technol. 2 001
[23] ］ Gundu K M, Kolesik M, Moloney J V 2006 Opt. Express 14 6870
[24] ］ Zhao X T, Hou L T, Liu Z L, Wang W, Wei H Y, Ma J R 2007 Acta Phys. Sin. 56 2275 (in Chinese) ［赵兴涛、侯蓝田、刘兆伦、王伟、魏红彦、马景瑞 2007 56 2275］
[25] ］ Li S G, Ji Y L, Zhou G Y, Hou L T, Wang Q Y, Hu M L, Li Y F, Wei Z Y, Zhang J, Liu X D 2004 Acta Phys. Sin. 53 478 (in Chinese) ［李曙光、冀玉领、周桂耀、侯蓝田、王清月、胡明列、栗岩峰、魏志义、张军、刘晓东 2004 53 478］
[26] ］ Gong T R, Yan F P, Wang L, Li Y F, Liu P, Jian S S 2008 Chinese J. Lasers 35 0559 (in Chinese) ［龚桃荣、延凤平、王琳、李一凡、刘鹏、简水生 2008 中国激光 35 0559］
[27] ］ Li S G, Xing G L, Zhou G Y, Hou L T 2006 Acta Phys. Sin. 55 0238 (in Chinese) ［李曙光、邢光龙、周桂耀、侯蓝田 2006 中 55 0238］
[28] ］ Liu J, Yang C X, Claire G, Jin G F 2006 Acta Optica Sinca 26 1569 (in Chinese) ［刘洁、杨昌喜、Claire Gu、金国藩 2006 光学学报 26 1569］
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[1] ［1］Birks T A, Knight J C, Russell P S J 1997 Opt. Lett. 22 961
[2] ［2］ Knight J C, Birks T A, Russell P S J, Atkin D M 1996 Opt. Lett. 21 1547
[3] ［3］ Knight J C, Broeng J, Birks T A, Russel P S J 1998 Sci. 282 1476
[4] ［4］ Yang T J, Shen L F, Chau Y F, Sung M J, Chen D, Tsai D P 2008 Opt. Commun. 281 4334
[5] ［5］ Wang J Y, Jiang C, Hu W S, Gao M Y, Ren H L 2007 Opt. Laser. Technol. 39 913
[6] ［6］ Begum F, Namihira Y, Razzak S. M. A, Kaijage S, Hai N H, Kinjo T, Miyagi K, Zou N 2009 Opt. Commun. 282 1416
[7] ［7］ Zhang F D, Liu X Y, Zhang M, Ye P D 2006 Acta Phys. Sin. 55 6447 (in Chinese) ［张方迪、刘小毅、张民、叶培大 2006 55 6447］
[8] ［8］ Lou S Q, Ren G B, Yan F P, Jian S S 2005 Acta Phys. Sin. 54 1229 (in Chinese)［娄淑琴、任国斌、延凤平、简水生 2005 54 1229］
[9] ［9］ Wang Q Y, Hu M L, Chai L 2006 Chinese J. Lasers 33 57 (in Chinese) ［王清月、胡明列、柴路 2006 中国激光 33 57］
[10] ］ Li S G, Liu X D, Hou L T 2004 Chinese J. Lasers 31 713 (in Chinese) ［李曙光、刘晓东、侯蓝田 2004 中国激光 31 713］
[11] ］ Yan F P, Li Y F, Wang L, Gong T R, Liu P, Liu Y, Tao P L, Qu M X, Jian S S 2008 Acta Phys. Sin. 57 5735 (in Chinese)［延凤平、李一凡、王琳、龚桃荣、刘鹏、刘洋、陶沛琳、曲美霞、简水生 2008 57 5735］
[12] ］ Liu X Y, Zhang F D, Zhang M, Ye P D 2007 Acta Phys. Sin. 56 301 (in Chinese) ［刘毅、张方迪、张民、叶培大 2007 56 301］
[13] ］ Suzuki K, Kubota H, Kawanishi S 2001 Opt. Express 9 676
[14] ］ Saitoh K, Koshiba M 2002 IEEE Photonic Techl. 14 1291
[15] ］ Koshiba M, Saitoh K 2003 Appl. Optics 42 6267
[16] ］ White T P, Kuhlmey B T, Mcphedran R C, Maystre D, Renversez G, Martijin C de S, Botten L C 2002 J. Opt. Soc. Am. B 19 2322
[17] ］ Kuhlmey B T, White T P, Renversez G, Maystre D, Botten L C, Martijin C de S, Mcphedran R C 2002 J. Opt. Soc. Am. B 19 2331
[18] ］ Fang H, Lou S Q, Guo T Y, Jian S S 2007 Acta Optica Sinca 27 202 (in Chinese) ［方宏、娄淑琴、郭铁英、简水生 2007 光2学学报 27 202］
[19] ］ Zhang L, Li S G 2010 arXiv:20090838 ［PCF］
[20] ］ Fu B, Li S G 2009 arXiv:20090260 ［PCF］
[21] ］ Yang Q Q, Hou L T 2009 arXiv:20090523 ［PCF］
[22] ］ Begum F, Namihira Y, Razzak S. M. A, Kaijage S, Hai N H, Kinjo T, Miyagi K, Zou N Y 2009 Opt Laser Technol. 2 001
[23] ］ Gundu K M, Kolesik M, Moloney J V 2006 Opt. Express 14 6870
[24] ］ Zhao X T, Hou L T, Liu Z L, Wang W, Wei H Y, Ma J R 2007 Acta Phys. Sin. 56 2275 (in Chinese) ［赵兴涛、侯蓝田、刘兆伦、王伟、魏红彦、马景瑞 2007 56 2275］
[25] ］ Li S G, Ji Y L, Zhou G Y, Hou L T, Wang Q Y, Hu M L, Li Y F, Wei Z Y, Zhang J, Liu X D 2004 Acta Phys. Sin. 53 478 (in Chinese) ［李曙光、冀玉领、周桂耀、侯蓝田、王清月、胡明列、栗岩峰、魏志义、张军、刘晓东 2004 53 478］
[26] ］ Gong T R, Yan F P, Wang L, Li Y F, Liu P, Jian S S 2008 Chinese J. Lasers 35 0559 (in Chinese) ［龚桃荣、延凤平、王琳、李一凡、刘鹏、简水生 2008 中国激光 35 0559］
[27] ］ Li S G, Xing G L, Zhou G Y, Hou L T 2006 Acta Phys. Sin. 55 0238 (in Chinese) ［李曙光、邢光龙、周桂耀、侯蓝田 2006 中 55 0238］
[28] ］ Liu J, Yang C X, Claire G, Jin G F 2006 Acta Optica Sinca 26 1569 (in Chinese) ［刘洁、杨昌喜、Claire Gu、金国藩 2006 光学学报 26 1569］
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