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Pulse energy directly output from a mode-locked fiber laser approaching one hundred nanojoule is demonstrated. The fiber laser is based on a σ-shaped cavity design. A segment of single polarization Yb-doped large mode area photonic crystal fiber acts as gain medium. A semiconductor saturable absorber mirror is used for self-starting mode-locking operation. The fiber laser works in an all normal dispersion mode-locking regime with no intracavity dispersion compensation introduced in the laser. A long multi-pass cavity is used to reduce the repetition rate of the fiber laser. Direct output pulse energy of 97 nJ with an average power of 1.08 W is achieved at a low repetition rate of 11.1 MHz. The pulse duration is 4.17 ps,which can be extracavity dechirped to 740 fs.
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Keywords:
- photonic crystal fiber /
- fiber laser /
- all normal dispersion mode-locking /
- multi-pass cavity
[1] Kelly S M J, Smith K, Blow K J, Doran N J 1991 Opt. Lett. 16 1337
[2] J. Laser. 36 1660 (in Chinese) [胡明列、 宋有建、 刘博文、 方晓惠、 张 弛、 刘华刚、 刘 丰、 王昌雷、 柴 路、 邢岐荣、 王清月 2009 中国激光 36 1660]
[3] Tang Y, Han Y H 2000 Chin. Phys. 9 565
[4] Luo Z C, Xu W C, Song C X, Luo A P, Chen W C 2008 Chin. Phys. B 17 2328
[5] Kieu K, Renninger W H, Chong A, Wise F W 2009 Opt. Lett. 34 593
[6] Schreiber T, Rser F, Schmidt O, Limpert J, Iliew R, Lederer F, Petersson A, Jacobsen C, Hansen K P, Broeng J, Tümmermann A 2005 Opt. Express 13 7621
[7] Ortac B, Limpert J, Tümmermann A 2007 Opt. Lett. 32 2149
[8] 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 57 6921]
[9] Hu M L, Song Y J, Liu B W, Fang X H, Zhang C, Liu H G, Liu F, Wang C L, Chai L, Xing Q R, Wang Q Y 2009 Chin.
[10] 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 57 6425]
[11] Song Y J, Hu M L, Wang C L, Tian Z, Xing Q R, Chai L, Wang C Y 2008 IEEE Photo.Technol. Lett. 20 1088
[12] Zhang C, Hu M L, Song Y J, Zhang X, Chai L, Wang Q Y 2009 Acta Phys. Sin. 58 7727 (in Chinese) [张 驰、 胡明列、 宋有建、 张 鑫、 柴 路、 王清月 2009 58 7727]
[13] Ortac B, Baumgartl M, Limpert J, Tünnermann A 2009 Opt. Lett. 34 1585
[14] Sennaroglu A, Fujimoto J G 2003 Opt. Express 11 1106
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[1] Kelly S M J, Smith K, Blow K J, Doran N J 1991 Opt. Lett. 16 1337
[2] J. Laser. 36 1660 (in Chinese) [胡明列、 宋有建、 刘博文、 方晓惠、 张 弛、 刘华刚、 刘 丰、 王昌雷、 柴 路、 邢岐荣、 王清月 2009 中国激光 36 1660]
[3] Tang Y, Han Y H 2000 Chin. Phys. 9 565
[4] Luo Z C, Xu W C, Song C X, Luo A P, Chen W C 2008 Chin. Phys. B 17 2328
[5] Kieu K, Renninger W H, Chong A, Wise F W 2009 Opt. Lett. 34 593
[6] Schreiber T, Rser F, Schmidt O, Limpert J, Iliew R, Lederer F, Petersson A, Jacobsen C, Hansen K P, Broeng J, Tümmermann A 2005 Opt. Express 13 7621
[7] Ortac B, Limpert J, Tümmermann A 2007 Opt. Lett. 32 2149
[8] 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 57 6921]
[9] Hu M L, Song Y J, Liu B W, Fang X H, Zhang C, Liu H G, Liu F, Wang C L, Chai L, Xing Q R, Wang Q Y 2009 Chin.
[10] 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 57 6425]
[11] Song Y J, Hu M L, Wang C L, Tian Z, Xing Q R, Chai L, Wang C Y 2008 IEEE Photo.Technol. Lett. 20 1088
[12] Zhang C, Hu M L, Song Y J, Zhang X, Chai L, Wang Q Y 2009 Acta Phys. Sin. 58 7727 (in Chinese) [张 驰、 胡明列、 宋有建、 张 鑫、 柴 路、 王清月 2009 58 7727]
[13] Ortac B, Baumgartl M, Limpert J, Tünnermann A 2009 Opt. Lett. 34 1585
[14] Sennaroglu A, Fujimoto J G 2003 Opt. Express 11 1106
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