Linear and nonlinear resonance features of an erbium-doped fibre ring laser under cavity-loss modulation

Pramana

Aditi Ghosh¹  R Vijaya2² 

[1] Fibre Optics and Photonics Division, Central Glass and Ceramic Research Institute, Council of Scientific and Industrial Research, Kolkata 700 032, India$$;Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208 016, India$$

关键词: Fibre lasers;    dynamics of nonlinear optical systems;    relaxation oscillations;    time-series analysis.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The continuous-wave output of a single-mode erbium-doped fibre ring laser when subjected to cavity-loss modulation is found to exhibit linear as well as nonlinear resonances. At sufficiently low driving amplitude, the system resembles a linear damped oscillator. At higher amplitudes, the dynamical study of these resonances shows that the behaviour of the system exhibits features of a nonlinear damped oscillator under harmonic modulation. These nonlinear dynamical features, including harmonic and subharmonic resonances, have been studied experimentally and analysed with the help of a simple time-domain and frequency-domain information obtained from the output of the laser. All the studies are restricted to the modulation frequency lying in a regime near the relaxation oscillation frequency.

【 授权许可】

Unknown