Dispersion-imbalanced Fibre Loop Mirror Research Articles

A new scheme of cross-gain modulation wavelength converter with good performance on extinction ratio

A new scheme is presented in this article which, by using a dispersion-imbalanced fiber loop mirror, gives a better solution to improve the extinction ratio degradation of wavelength converter based on cross-gain modulation. The maximum improvement of the extinction ratio is observed to be 3.5 dB in the wavelength conversion experiment with a clock signal at 2.5 GHz.

Nonlinear suppression of incoherent interferometriccrosstalk using dispersion-imbalanced loop mirror

The suppression of interchannel interferometric crosstalk and reduction of the extinction-ratio induced power penalty have been demonstrated by means of nonlinear switching in a dispersion-imbalanced fibre loop mirror (DILM).

Multiwavelength pulse source for OTDM/WDM applications based on arrayed waveguide grating

A 13-wavelength channel 10-GHz pulse source is demonstrated using a novel scheme incorporating a dispersion-imbalanced fiber loop mirror and an arrayed waveguide grating. The output high-quality pulses are 5 ps wide with the pedestal suppression in excess of 25 dB.

OTDM applications of dispersion-imbalanced fibreloop mirror

Improvement of the signal quality from 10 GHz directly-modulated sources and crosstalk suppression in an 80 Gbit/s OTDM system are demonstrated for the first fime by means of nonlinear switching in a dispersion-imbalanced fibre loop mirror (DILM).

High-quality laser diode pulse compression in dispersion-imbalancedloop mirror

High-quality femtosecond pulse generation from a 1.5 µm gain-switched DFB laser diode in a compact nonlinear compressor based on a dispersion-imbalanced fibre loop mirror is reported. An overall compression ratio of 80 is achieved, resulting in generation of near-transform-limited pulses with negligible tails and a duration of 270 fs.