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To reduce the threshold is an important requirement for utilizing the random laser. RFL (random fiber laser) is a new random laser which user the photonic bandgap of PCF to lower the threshold by filling the random medium into a hollow-core PCF. Theoretical analysis shows that most of the emitted light is concentrated in the core of the fiber because of the controlling of the bandgap, which should enhance the interaction between the random medium and the localized light for the light oscillating back and for the thin core region, therefore the excitation efficiency of the random laser could be improved. However, the band gap of PCF filled with the random medium should be changed, so when choosing fiber to reduce the threshold for RFL, we should consider the matching between the new bandgap of the padded fiber and the gain frequency of the medium, and arrange the fiber and medium in pairs reasonably. If the PCF matches with the medium, the lasing may be enhancedly regulated and controlled and the threshold can be reduced greatly.
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Keywords:
- random laser /
- photonic crystal fiber /
- photonic bandgap /
- lasing threshold
[1] Lawandy N M, Balachandran R M, Gomes A S L, Sauvain E 1994 Nature 368 436
[2] Cao H, Zhao Y G, Ho S T, Seelig E W, Wang Q H, Chang R P H 1999 Phys. Rev. Lett. 82 2278
[3] Wiersma D S 2000 Nature 406 132
[4] Treci H E, Li G, Rotter S, Stone A D 2008 Science 320 623
[5] Xu Y, Li Y P, Jin L, Ma X Y,Yang D R 2013 Acta Phys. Sin. 62 084207 (in Chinese) [徐韵, 李云鹏, 金璐, 马向阳, 杨德仁 2013 62 084207]
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[7] Chang S H, Cao H, Ho S T 2003 IEEE J. Quantum Electron 39 364
[8] Dice G D, Mujumdar S, Elezzabia A Y 2005 Appl. Phys. Lett. 86 131105
[9] Zhai T R, Zhang X P, Pang Z G, Su X Q, Liu H M, Feng S F, Wang L 2011 Nano Lett. 11 4295
[10] Wang H Q, Fang L G, Wang Y F, YU A L 2011 Acta Phys. Sin. 60 014203 (in Chinese) [王慧琴, 方利广, 王一凡, 余奥列 2011 60 014203]
[11] Wang H Q, Liu Z D 2009 Acta Phys. Sin. 58 1648 (in Chinese) [王慧琴, 刘正东 2009 58 1648]
[12] Wang H Q, Ouyang H, Han D F,Wang Y F 2011 Optoelectronics Letters 7 179
[13] Matos C J S, Menezes L S, Brito-Silva A M, Martinez Gámez M A, Gomes A S L, Araújo C B 2007 Phys. Rev. Lett. 99 153903
[14] Hua Z J, Zheng H J, Wang L J, Tian X J, Wang T X, Zhang Q J, Zou G, Chen Y, Zhang Q 2012 Optics Commu. 285 3967
[15] L J T, Wang K J, Liu J S, Yao J Q, Zhu Q H, Zhang Q Q 2011 Acta Phys. Sin. 60 074203 (in Chinese) [吕健滔, 王可嘉, 刘劲松, 姚建铨, 朱启华, 张清泉 2011 60 074203]
[16] Wang H Q, Liu Z D, Wang B 2008 Acta Phys. Sin. 57 2186 (in Chinese) [王慧琴, 刘正东, 王冰 2008 57 2186]
[17] Xie Y M, Liu Z D 2005 Phys. Lett. A 341 339
[18] Shen X W, Yuan J H, Sang X Z, Yu C X, Rao L, Xia M, Han Y, Xia C M, Hou L T, Wu Z C, He X L 2013 Chin. Phys. B 22 014102
[19] Qin W, Li S G, Xue J R, Xin X J, Zhang L 2013 Chin. Phys. B 22 074213
[20] Shen X W, Y J H, Sang X Z, Yu C X, Rao L, Xin X J, Xia M, Han Y, Xia C M, Hou L T 2012 Chin. Phys. B 21 074209
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[1] Lawandy N M, Balachandran R M, Gomes A S L, Sauvain E 1994 Nature 368 436
[2] Cao H, Zhao Y G, Ho S T, Seelig E W, Wang Q H, Chang R P H 1999 Phys. Rev. Lett. 82 2278
[3] Wiersma D S 2000 Nature 406 132
[4] Treci H E, Li G, Rotter S, Stone A D 2008 Science 320 623
[5] Xu Y, Li Y P, Jin L, Ma X Y,Yang D R 2013 Acta Phys. Sin. 62 084207 (in Chinese) [徐韵, 李云鹏, 金璐, 马向阳, 杨德仁 2013 62 084207]
[6] Zacharakis G, Papadogiannis N A, Papazoglou T G 2002 Appl. Phys. Lett. 81 2511
[7] Chang S H, Cao H, Ho S T 2003 IEEE J. Quantum Electron 39 364
[8] Dice G D, Mujumdar S, Elezzabia A Y 2005 Appl. Phys. Lett. 86 131105
[9] Zhai T R, Zhang X P, Pang Z G, Su X Q, Liu H M, Feng S F, Wang L 2011 Nano Lett. 11 4295
[10] Wang H Q, Fang L G, Wang Y F, YU A L 2011 Acta Phys. Sin. 60 014203 (in Chinese) [王慧琴, 方利广, 王一凡, 余奥列 2011 60 014203]
[11] Wang H Q, Liu Z D 2009 Acta Phys. Sin. 58 1648 (in Chinese) [王慧琴, 刘正东 2009 58 1648]
[12] Wang H Q, Ouyang H, Han D F,Wang Y F 2011 Optoelectronics Letters 7 179
[13] Matos C J S, Menezes L S, Brito-Silva A M, Martinez Gámez M A, Gomes A S L, Araújo C B 2007 Phys. Rev. Lett. 99 153903
[14] Hua Z J, Zheng H J, Wang L J, Tian X J, Wang T X, Zhang Q J, Zou G, Chen Y, Zhang Q 2012 Optics Commu. 285 3967
[15] L J T, Wang K J, Liu J S, Yao J Q, Zhu Q H, Zhang Q Q 2011 Acta Phys. Sin. 60 074203 (in Chinese) [吕健滔, 王可嘉, 刘劲松, 姚建铨, 朱启华, 张清泉 2011 60 074203]
[16] Wang H Q, Liu Z D, Wang B 2008 Acta Phys. Sin. 57 2186 (in Chinese) [王慧琴, 刘正东, 王冰 2008 57 2186]
[17] Xie Y M, Liu Z D 2005 Phys. Lett. A 341 339
[18] Shen X W, Yuan J H, Sang X Z, Yu C X, Rao L, Xia M, Han Y, Xia C M, Hou L T, Wu Z C, He X L 2013 Chin. Phys. B 22 014102
[19] Qin W, Li S G, Xue J R, Xin X J, Zhang L 2013 Chin. Phys. B 22 074213
[20] Shen X W, Y J H, Sang X Z, Yu C X, Rao L, Xin X J, Xia M, Han Y, Xia C M, Hou L T 2012 Chin. Phys. B 21 074209
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