TY - GEN
T1 - Theoretic analysis of pulse shaping by using nonlinear 0ptical loop mirror based on crystal fiber
AU - Li, Shaohui
AU - Yang, Aiying
AU - Sun, Yu Nan
PY - 2008
Y1 - 2008
N2 - A nonlinear optical loop mirror (NOLM) based on photonic crystal fiber (PCF) is used for optical pulse shaping. The transmission of optical pulses in the fiber loop can be described by the nonlinear Schrödinger equations. The crossing phase modulation (XPM) effect which happens between signal pulse and control pulse in NOLM is used for pulse shaping. The theory of XPM effect in NOLM is analyzed theoretically and the process of pulse shaping is simulated. For the input Super-Gaussian signal pulses, it can be found that the pulse can be shaped from flat to sharp by the compression effect. For the input Hyperbolic-Secant signal pulses, it can be found that the pedestal from the compressed pulse can be suppressed by the NOLM. Due to the characteristics of PCF, especially high nonlinear properties, the high quality shaped pulses can be got. Compare with the self phase modulation (SPM) effect for optical pulse shaping, it is shown that the input pulse with low power itself can be shaped and the shaping of the input pulse can be controlled by the control pulse. Based on the analysis of the result, proper parameters and the crystal fiber of the NOLM will be selected.
AB - A nonlinear optical loop mirror (NOLM) based on photonic crystal fiber (PCF) is used for optical pulse shaping. The transmission of optical pulses in the fiber loop can be described by the nonlinear Schrödinger equations. The crossing phase modulation (XPM) effect which happens between signal pulse and control pulse in NOLM is used for pulse shaping. The theory of XPM effect in NOLM is analyzed theoretically and the process of pulse shaping is simulated. For the input Super-Gaussian signal pulses, it can be found that the pulse can be shaped from flat to sharp by the compression effect. For the input Hyperbolic-Secant signal pulses, it can be found that the pedestal from the compressed pulse can be suppressed by the NOLM. Due to the characteristics of PCF, especially high nonlinear properties, the high quality shaped pulses can be got. Compare with the self phase modulation (SPM) effect for optical pulse shaping, it is shown that the input pulse with low power itself can be shaped and the shaping of the input pulse can be controlled by the control pulse. Based on the analysis of the result, proper parameters and the crystal fiber of the NOLM will be selected.
KW - Crossing phase modulation(XPM)
KW - Nonlinear optical loop mirror (NOLM)
KW - Optical pulses shaping
KW - Photonic crystal fiber(PCF)
UR - http://www.scopus.com/inward/record.url?scp=79959360709&partnerID=8YFLogxK
U2 - 10.1117/12.756104
DO - 10.1117/12.756104
M3 - Conference contribution
AN - SCOPUS:79959360709
SN - 9780819470126
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Information Optics and Photonics Technologies II
T2 - Information Optics and Photonics Technologies II
Y2 - 12 November 2007 through 13 November 2007
ER -