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用改进的化学气相沉积方法和溶液掺杂方法制备了掺Bi双包层石英基光纤. 测试了掺Bi光纤预制棒切片的吸收光谱和掺Bi光纤在特定波长下的吸收系数,在不同波长的激光激发下, 研究了掺Bi光纤的近红外荧光光谱. 掺Bi光纤在976 nm激光激发下,其荧光光谱范围在10001400 nm之间, 荧光峰的峰值位于1140 nm附近,半高宽约为130 nm;在793和808 nm激光激发下得到了 10001700 nm的超宽带近红外荧光,半高宽超过250 nm.通过对掺Bi光纤预制棒切片进行900 ℃ 保温1 h的热处理后,发现在808 nm激光 激发下预制棒切片的荧光强度增加了近4倍.研究结果表明,具有超宽带荧光特性的双包层掺Bi光纤 有望作为超短脉冲激光器和可调谐激光器的增益介质.Bi-doped double cladding fiber preform is prepared by modified chemical vapor deposition and solution doping process. The absorption spectrum of preform and the near-infrared (NIR) luminescence spectrum of fiber are experimentally investigated. The luminescence spectrum of the fiber shows a peak emission band at 1140 nm with a full-width at half-maximum (FWHM) of 130 nm under 976 nm LD exciting. Under 808 or 793 nm LD exciting, an ultra-broad NIR emission with an FWHM of more than 250 nm is observed in the Bi-doped fiber, and the range of luminescence spectrum is from 1000 to 1700 nm. After the heat treatment of the Bi-doped fiber preform slice under 900 ℃ for 1 h, under 808 nm LD exciting, the fluorescence intensity is about 4 times higher than that of the perform slice without heat treatment. The results indicate that the Bi-doped double cladding fiber is a promising gain medium used for ultrashort fiber lasers and tunable fiber lasers.
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Keywords:
- Bi-doped fiber /
- ultra-broad emission /
- double-clad fiber /
- heat treatment
[1] Li S G, Zhou G Y, Xing G L, Hou L T, Wang Q Y, Li Y F, Hu M L 2005 Acta Phys. Sin. 54 1599 (in Chinese) [李曙光, 周桂耀, 邢光龙, 侯蓝田, 王清月, 栗岩锋, 胡明列 2005 物理学报 54 1599]
[2] Song Y J, Hu M L, Liu B W, Chai L, Wang Q Y 2008 Acta Phys. Sin. 57 6425 (in Chinese) [宋有建, 胡明列, 刘博文, 柴路, 王清月 2008 物理学报 57 6425]
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[5] Fujimoto Y, Nakatsuka M 2001 Jpn. J. Appl. Phys. 40 L279
[6] Fujimoto Y, Nakatsuka M 2003 Appl. Phys. Lett. 82 3325
[7] Meng X G, Qiu J R, Peng M Y, Chen D P, Zhao Q Z, Jiang X W, Zhu C S 2005 Opt. Express 13 1628
[8] Suzuki T, Ohishi Y 2006 Appl. Phys. Lett. 88 191912
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[10] Dai N L, Xu B, Jiang Z W, Peng J G, Li H Q, Luan H X, Yang L Y, Li J Y 2010 Opt. Express 18 18642
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[12] Haruna T, Kakui M, Taru T, Ishikawa S, Onishi M 2005 Optical Amplifiers and Their Applications Topical Meeting (Budapest: Optical Society of American) MC3
[13] Dianov E M, Dvoyrin V V, Mashinsky V M, Umnikov A A, Yashkov M V, Guryanov A N 2005 IEEE J. Quantum Electron. 35 1083
[14] Kalita M P, Yoo S, Sahu J 2008 Opt. Express 16 21032
[15] Mashinsky V M, Dvoyrin V V, Dianov E M 2008 Optical Fiber Communication Conference (San Diego: Optical Society of American) OThN1
[16] Yoo S, Kalita M P, Sahu J K, Nilsson J, Payne D 2008 The Conference on Lasers and Electro-Optics (San Jose: Optical Society of American) CFL4
[17] Kalita M P, Yoo S, Sahu J 2009 The Conference on Lasers and Electro-Optics (Baltimore: Optical Society of American) CThGG2
[18] Dvoyrin V V, Kiryanov A V, Mashinsky V M, Medvedkov O I, Umnikov A, Guryanov A N, Dianov E M 2010 IEEE J. Quantum Electron. 46 182
[19] Bufetova I A, Melkumov M A, Khopinb V F, Firstova S V, Shubina A V, Medvedkova O I, Guryanovb A N, Dianova E M 2010 Proc. SPIE 7580 758014
[20] Wu J D, Chen D P, Wu X K, Qiu J R 2011 Chin. Opt. Lett. 9 071601
[21] Denker B I, Galagan B I, Osiko V V, Shulman I L, Sverchkov S E, Dianov E M 2010 Appl. Phys. B 98 455
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[1] Li S G, Zhou G Y, Xing G L, Hou L T, Wang Q Y, Li Y F, Hu M L 2005 Acta Phys. Sin. 54 1599 (in Chinese) [李曙光, 周桂耀, 邢光龙, 侯蓝田, 王清月, 栗岩锋, 胡明列 2005 物理学报 54 1599]
[2] Song Y J, Hu M L, Liu B W, Chai L, Wang Q Y 2008 Acta Phys. Sin. 57 6425 (in Chinese) [宋有建, 胡明列, 刘博文, 柴路, 王清月 2008 物理学报 57 6425]
[3] Liu B W, Hu M L, Song Y J, Chai L, Wang Q Y 2008 Acta Phys. Sin. 57 6921 (in Chinese) [刘博文, 胡明列, 宋有建, 柴路, 王清月 2008 物理学报 57 6921]
[4] Liu H G, Hu M L, Liu B W, Song Y J, Chai L, Wang Q Y 2010 Acta Phys. Sin. 59 3979 (in Chinese) [刘华刚, 胡明列, 刘博文, 宋有建, 柴路, 王清月 2010 物理学报 59 3979]
[5] Fujimoto Y, Nakatsuka M 2001 Jpn. J. Appl. Phys. 40 L279
[6] Fujimoto Y, Nakatsuka M 2003 Appl. Phys. Lett. 82 3325
[7] Meng X G, Qiu J R, Peng M Y, Chen D P, Zhao Q Z, Jiang X W, Zhu C S 2005 Opt. Express 13 1628
[8] Suzuki T, Ohishi Y 2006 Appl. Phys. Lett. 88 191912
[9] Hughes M, Suzuki T, Ohishi Y 2008 Opt. Lett. 25 1380
[10] Dai N L, Xu B, Jiang Z W, Peng J G, Li H Q, Luan H X, Yang L Y, Li J Y 2010 Opt. Express 18 18642
[11] Dvoyrin V V, Mashinsky V M, Dianov E M, Umnikov A A, Yashkov M V, Guryanov A N 2005 European Conference on Optical Communications (Glasgow: IEEE) pp949---950
[12] Haruna T, Kakui M, Taru T, Ishikawa S, Onishi M 2005 Optical Amplifiers and Their Applications Topical Meeting (Budapest: Optical Society of American) MC3
[13] Dianov E M, Dvoyrin V V, Mashinsky V M, Umnikov A A, Yashkov M V, Guryanov A N 2005 IEEE J. Quantum Electron. 35 1083
[14] Kalita M P, Yoo S, Sahu J 2008 Opt. Express 16 21032
[15] Mashinsky V M, Dvoyrin V V, Dianov E M 2008 Optical Fiber Communication Conference (San Diego: Optical Society of American) OThN1
[16] Yoo S, Kalita M P, Sahu J K, Nilsson J, Payne D 2008 The Conference on Lasers and Electro-Optics (San Jose: Optical Society of American) CFL4
[17] Kalita M P, Yoo S, Sahu J 2009 The Conference on Lasers and Electro-Optics (Baltimore: Optical Society of American) CThGG2
[18] Dvoyrin V V, Kiryanov A V, Mashinsky V M, Medvedkov O I, Umnikov A, Guryanov A N, Dianov E M 2010 IEEE J. Quantum Electron. 46 182
[19] Bufetova I A, Melkumov M A, Khopinb V F, Firstova S V, Shubina A V, Medvedkova O I, Guryanovb A N, Dianova E M 2010 Proc. SPIE 7580 758014
[20] Wu J D, Chen D P, Wu X K, Qiu J R 2011 Chin. Opt. Lett. 9 071601
[21] Denker B I, Galagan B I, Osiko V V, Shulman I L, Sverchkov S E, Dianov E M 2010 Appl. Phys. B 98 455
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