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We demonstrate an approach for triangular-shaped pulse train generation experimentally based on harmonic fitting. The operation principle is that a Mach-Zehnder modulator is firstly employed to suppress modulation of the optical carrier. Thus a periodically variable lightwave can be obtained at the output. Then the signal is coupled into a section of dispersive fiber. Due to the dispersion-induced power fading, the undesired 4th order harmonics in the optical intensity can be fully removed. By adjusting modulation index to an optimum value (m=2.305), the generated harmonics of the optical intensity can be made corresponding to the Fourier components of typical periodic triangular pulses. Finally, the triangular-shaped pulse train at a repetition rate two times of the driving frequency can be obtained. In the experiments, 19.724 Gb/s and 15.356 Gb/s triangular-shaped pulse trains are generated by using 9.862 GHz and 7.678 GHz driving signals respectively. Besides, the repetition rate can be switched to another value by using a different fiber dispersion ( 2L). It is found that the experimental data agree well with theoretical results.
[1] [2] Li J, Ning T, Pei L, Jian W, You H, Chen H, Zhang C, Li C 2013 Acta Phys. Sin. 62 224210 (in Chinese) [李晶, 宁提纲, 裴丽, 简伟, 油海东, 陈宏尧, 张婵, 李超 2013 62 224210]
[3] Liu G, Pei L, Ning T, Gao S, Li J, Zhang Y 2012 Acta Phys. Sin. 61 094205 (in Chinese) [刘观辉, 裴丽, 宁提纲, 高嵩, 李晶, 张义军 2012 61 094205]
[4] [5] [6] Pei L, Liu G, Ning T, Gao S, Li J, Zhang Y 2012 Acta Phys. Sin. 61 064203 (in Chinese) [裴丽, 刘观辉, 宁提纲, 高嵩, 李晶, 张义军 2012 61 064203]
[7] [8] Li J, Ning T, Pei L, Qi C 2010 Chinese Optical Letter 8 138
[9] [10] Camerlingo A, Parmigiani F, Xian F, Poletti F, Horak P, Loh W H, Richardson D J, Petropoulos P 2010 IEEE Photonics Technology Letters 22 628
[11] Parmigiani F, Ibsen, Ng T T, L. Provost A, Petropoulos P, Richardson D J Proceedings of the 2008 Optical Fiber Communication Conference (OFC'08), San Diego, CA, USA 2008, OMP3
[12] [13] Bhamber R S, Latkin A I, Boscolo S, Turitsyn S K Proceedings of the 34th European Conference on Optical Communication (ECOC 2008), Brussels, Belgium, 2008, Th.1B.2
[14] [15] [16] Latkin A I, Boscolo S, Bhamber R S, Turitsyn S K 2009 J. Opt. Soc. Am. B 26 1492
[17] [18] Latkin A I, Boscolo S, Bhamber R S, Turitsyn S K Proceedings of the the 34th European Conference on Optical Communication (ECOC 2008), Brussels, Belgium, 2008, Mo.3F.4
[19] [20] Parmigiani F, Petropoulos P, Ibsen M, Richardson D J 2006 IEEE Photonics Technology Letters 18 829
[21] Boscolo S, Latkin A I, Turitsyn S K 2008 IEEE Journal of Quantum Electronics 44 1196
[22] [23] Wang H, Latkin A I, Boscolo S, Harper P, Turitsyn S K 2010 Journal of Optics 12 035205
[24] [25] Wang H 2012 Acta Phys. Sin. 61 124212 (in Chinese) [王华 2012 61 124212]
[26] [27] [28] Ye J, Yan L, Pan W, Luo B, Zou X, Yi S, Yao S 2011 Opt. Lett. 36 1458
[29] Dai B, Gao Z, Wang X, Kataoka N, Wada N 2011 Electronics Letters 47 336
[30] [31] [32] Dai B, Gao Z, Wang X, Chen H, Nobuyuki K, Wada N 2013 Journal of Lightwave Technology 31 145
[33] Li J, Zhang X, Hraimel B, Ning T, Pei L, Wu K 2012 Journal of Lightwave Technology 30 1617
[34] [35] [36] Liu H, Ren B, Feng J 2012 Chin. Phys. B 21 040501
[37] Tian F, Zhang X, Weng X, Xi L, Zhang Y, Zhang W 2011 Chin. Phys. B 20 080702
[38] -
[1] [2] Li J, Ning T, Pei L, Jian W, You H, Chen H, Zhang C, Li C 2013 Acta Phys. Sin. 62 224210 (in Chinese) [李晶, 宁提纲, 裴丽, 简伟, 油海东, 陈宏尧, 张婵, 李超 2013 62 224210]
[3] Liu G, Pei L, Ning T, Gao S, Li J, Zhang Y 2012 Acta Phys. Sin. 61 094205 (in Chinese) [刘观辉, 裴丽, 宁提纲, 高嵩, 李晶, 张义军 2012 61 094205]
[4] [5] [6] Pei L, Liu G, Ning T, Gao S, Li J, Zhang Y 2012 Acta Phys. Sin. 61 064203 (in Chinese) [裴丽, 刘观辉, 宁提纲, 高嵩, 李晶, 张义军 2012 61 064203]
[7] [8] Li J, Ning T, Pei L, Qi C 2010 Chinese Optical Letter 8 138
[9] [10] Camerlingo A, Parmigiani F, Xian F, Poletti F, Horak P, Loh W H, Richardson D J, Petropoulos P 2010 IEEE Photonics Technology Letters 22 628
[11] Parmigiani F, Ibsen, Ng T T, L. Provost A, Petropoulos P, Richardson D J Proceedings of the 2008 Optical Fiber Communication Conference (OFC'08), San Diego, CA, USA 2008, OMP3
[12] [13] Bhamber R S, Latkin A I, Boscolo S, Turitsyn S K Proceedings of the 34th European Conference on Optical Communication (ECOC 2008), Brussels, Belgium, 2008, Th.1B.2
[14] [15] [16] Latkin A I, Boscolo S, Bhamber R S, Turitsyn S K 2009 J. Opt. Soc. Am. B 26 1492
[17] [18] Latkin A I, Boscolo S, Bhamber R S, Turitsyn S K Proceedings of the the 34th European Conference on Optical Communication (ECOC 2008), Brussels, Belgium, 2008, Mo.3F.4
[19] [20] Parmigiani F, Petropoulos P, Ibsen M, Richardson D J 2006 IEEE Photonics Technology Letters 18 829
[21] Boscolo S, Latkin A I, Turitsyn S K 2008 IEEE Journal of Quantum Electronics 44 1196
[22] [23] Wang H, Latkin A I, Boscolo S, Harper P, Turitsyn S K 2010 Journal of Optics 12 035205
[24] [25] Wang H 2012 Acta Phys. Sin. 61 124212 (in Chinese) [王华 2012 61 124212]
[26] [27] [28] Ye J, Yan L, Pan W, Luo B, Zou X, Yi S, Yao S 2011 Opt. Lett. 36 1458
[29] Dai B, Gao Z, Wang X, Kataoka N, Wada N 2011 Electronics Letters 47 336
[30] [31] [32] Dai B, Gao Z, Wang X, Chen H, Nobuyuki K, Wada N 2013 Journal of Lightwave Technology 31 145
[33] Li J, Zhang X, Hraimel B, Ning T, Pei L, Wu K 2012 Journal of Lightwave Technology 30 1617
[34] [35] [36] Liu H, Ren B, Feng J 2012 Chin. Phys. B 21 040501
[37] Tian F, Zhang X, Weng X, Xi L, Zhang Y, Zhang W 2011 Chin. Phys. B 20 080702
[38]
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