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Based on the pulse compression characteristics in the nonlinear optical loop mirror (NOLM), the effect of NOLM on a cascad stimulated Brillouin scattering based slow light system is analyzed. In this paper, a ring structure is adopted to simulate the cascad system, so the complexity of system is reduced effectively, and the delay characteristics for various numbers of cycles and pump powers are studied. Analysis shows that the NOLM can effectively suppress the pulse-broadening in the cascaded slow light system, pump power determines the tendency and the final steady-state value of the broadening factor, and the broadening factor trends to the steady-state value after 4 cycles. Furthermore, zero-broadening can be obtained by optimizing the pump power; the delay time is continuously adjustable and without any limit in theory through changing the pump power and the number of cycles; through augmenting the pump power, the multiple-cascad-induced chirp can be reduced.
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Keywords:
- slow light /
- pulse compression /
- nonlinear optical loop mirror /
- stimulated Brillouin scattering
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[12] Zadok A, Eyal A, Tur M 2006 Opt. Express 14 8498
[13] Wang S, Ren L Y, Liu Y, Tomita Y 2008 Opt. Express 16 8067
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[15] Wang S H, Ren L Y, Liu Y 2009 Acta Phys. Sin. 58 3943 (in Chinese) [王士鹤、任立勇、刘 宇 2009 物理学报58 3943]
[16] Zhang Z Y, Zhou X J, Shi S H, Liang R 2010 Acta Phys. Sin. 59 4694 (in Chinese) [张旨遥、周晓军、石胜辉、梁 锐 2010 物理学报59 4694]
[17] Chin S, Herraez M G, Thévenaz L 2009 Opt. Express 17 21910
[18] Zhu Z M, Dawes A M C, Gauthier D J, Zhang L, Willner A E 2007 J. Lightwave Technol. 25 201
[19] Agrawal G P 2007 Applications of Nonlinear Fiber Optics (New York: Academic Press) p111
[20] Herraez M G, Thévenaz L 2009 Opt. Express 17 4732
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[1] Khurgin J B, Tucker R S 2009 Slow Light: Science and Applications (New York: CRC Press)
[2] Zhu Z M, Gauthier D J, Boyd R W 2007 Science 318 1747
[3] Firstenberg O, Shuker M, Davidson N, Ron A 2009 Phys. Rev. Lett. 102 43601
[4] Shi Z M, Boyd W R, Camacho R M, Vudyasetu P K, Howell J C 2007 Phys. Rev. Lett. 99 240801
[5] Camacho R M, Broadbent C J, Ali-Khan I, Howell J C 2007 Phys. Rev. Lett. 98 43902
[6] Qiu W, Zhang Y D, Ye J B, Tian H, Wang N, Wang H, Wang J F, Yuan P 2008 Acta Phys. Sin. 57 2242 (in Chinese) [邱 巍、掌蕴东、叶建波、田 赫、王 楠、王 号、王金芳、袁 萍 2008 物理学报 57 2242]
[7] Zheng D, Pan W, Yan L S, Luo B, Zou X H, Jiang N, Ma Y N 2010 Acta Phys. Sin. 59 1040 (in Chinese) [郑 狄、潘 炜、闫连山、罗 斌、邹喜华、江 宁、马雅男 2010 物理学报 59 1040]
[8] Zheng D, Pan W, Yan L S, Luo B, Zou X H, Wen K H, Jiang N 2010 Chin. Phys. Lett. 26 124202
[9] Xing L, Zhan L, Yi L L, Xia Y X 2007 Opt. Express 15 10189
[10] Lu Z W, Dong Y K, Li Q 2007 Opt. Express 15 1871
[11] Pant R, Stenner M D, Neifeld M A, Gauthier D 2008 Opt. Express 16 2764
[12] Zadok A, Eyal A, Tur M 2006 Opt. Express 14 8498
[13] Wang S, Ren L Y, Liu Y, Tomita Y 2008 Opt. Express 16 8067
[14] Schneider T, Wiatrek A, Henker 2008 Opt. Express 16 15617
[15] Wang S H, Ren L Y, Liu Y 2009 Acta Phys. Sin. 58 3943 (in Chinese) [王士鹤、任立勇、刘 宇 2009 物理学报58 3943]
[16] Zhang Z Y, Zhou X J, Shi S H, Liang R 2010 Acta Phys. Sin. 59 4694 (in Chinese) [张旨遥、周晓军、石胜辉、梁 锐 2010 物理学报59 4694]
[17] Chin S, Herraez M G, Thévenaz L 2009 Opt. Express 17 21910
[18] Zhu Z M, Dawes A M C, Gauthier D J, Zhang L, Willner A E 2007 J. Lightwave Technol. 25 201
[19] Agrawal G P 2007 Applications of Nonlinear Fiber Optics (New York: Academic Press) p111
[20] Herraez M G, Thévenaz L 2009 Opt. Express 17 4732
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