Bandwidth enhancement and time-delay signature suppression of chaotic signal from an optical feedback semiconductor laser by using cross phase modulation in a highly nonlinear fiber loop mirror

Based on a nonlinear fiber loop mirror (NOLM) composed of a fiber coupler (FC) and a highly nonlinear fiber (HNLF), a scheme is proposed to simultaneously realize the bandwidth enhancement and the time-delay signature (TDS) suppression of a chaotic signal generated from an external cavity optical feedback semiconductor laser. The simulation results show that, after passing through the NOLM, the bandwidth of chaotic signal can be efficiently enhanced and the TDS can be well suppressed under suitable operation parameters. Furthermore, the influences of the power-splitting ratio of the FC, the averaged power of the chaotic signal entering into the FC and the length of the HNLF on the chaotic bandwidth and TDS are analyzed, and the optimized parameters are determined.

[1]  Y. Liao,et al.  Noise suppressions in synchronized chaos lidars. , 2010, Optics express.

[2]  Jesper Mørk,et al.  Chaos in semiconductor lasers with optical feedback: theory and experiment , 1992 .

[3]  K. A. Shore,et al.  Optimal operating conditions for external cavity semiconductor laser optical chaos communication system , 2012 .

[4]  Jia-Ming Liu,et al.  Chaotic lidar , 2004, SPIE LASE.

[5]  Fan-Yi Lin,et al.  Chaos time delay signature suppression and bandwidth enhancement by electrical heterodyning. , 2015, Optics express.

[6]  Junji Ohtsubo,et al.  Stability analysis of semiconductor laser with phase-conjugate feedback , 1997 .

[7]  R. Toral,et al.  Analysis and characterization of the hyperchaos generated by a semiconductor laser subject to a delayed feedback loop , 2005, IEEE Journal of Quantum Electronics.

[8]  Jiagui Wu,et al.  Suppression of time delay signatures of chaotic output in a semiconductor laser with double optical feedback. , 2009, Optics express.

[9]  Laurent Larger,et al.  Chaos-based communications at high bit rates using commercial fibre-optic links , 2005, Nature.

[10]  D S Citrin,et al.  Loss of time-delay signature in the chaotic output of a semiconductor laser with optical feedback. , 2007, Optics letters.

[11]  A. Uchida,et al.  Fast physical random bit generation with chaotic semiconductor lasers , 2008 .

[12]  B. Pompe,et al.  Permutation entropy: a natural complexity measure for time series. , 2002, Physical review letters.

[13]  N. Doran,et al.  Nonlinear-optical loop mirror. , 1988, Optics letters.

[14]  Anbang Wang,et al.  Chaotic Correlation Optical Time Domain Reflectometer Utilizing Laser Diode , 2008, IEEE Photonics Technology Letters.

[15]  Yuncai Wang,et al.  Generation of wideband chaos with suppressed time-delay signature by delayed self-interference. , 2013, Optics express.

[16]  J P Toomey,et al.  Nonlinear dynamics of semiconductor lasers with feedback and modulation. , 2010, Optics express.

[17]  R. Lang,et al.  External optical feedback effects on semiconductor injection laser properties , 1980 .

[18]  Paul S. Spencer,et al.  Multimode dynamics of semiconductor lasers subject to strong optical feedback , 1998, Photonics West.

[19]  Deming Liu,et al.  Simultaneous and precise fault locating in WDM-PON by the generation of optical wideband chaos. , 2013, Optics letters.

[20]  Matthieu R. Bloch,et al.  Fast random bit generation with a single chaotic laser subjected to optical feedback , 2014, Photonics Europe.

[21]  J. Paul,et al.  3.5-GHz signal transmission in an all-optical chaotic communication scheme using 1550-nm diode lasers , 2005, IEEE Photonics Technology Letters.