20 January 2005 A novel laser device for all optical wavelength conversion
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A widely tunable, narrow-linewidth, simultaneous triple-wavelength oscillation erbium-doped fiber ring laser (EDFRL) has been developed. The EDFRL can produce double-wavelength oscillations with the same linear-polarization output, as well as another widely tunable wavelength oscillation with orthogonal linear-polarization from 1522.2 nm to 1595.9 nm. The long-term stability of the triple-wavelength output was observed with a high signal-to-noise ratio of larger than 40 dB. By using this EDFRL in combination with a 1550-nm semiconductor optical amplifier (SOA), an ultrabroad tunable wavelength converter is demonstrated with uniform efficiency and equalized optical signal-to-noise ratio (OSNR) over a 9.1 THz tuning range through four-wave mixing (FWM) in a SOA. This result is a significant improvement of both the conversion efficiency and the SNR as compared with the conventional FWM-based wavelength converters. We have also investigated the effect of both input power and wavelength of pump P2 on conversion efficiency and OSNR of the wavelength-converted signals
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Zhenguo Lu, Zhenguo Lu, Chander Prakash Grover, Chander Prakash Grover, "A novel laser device for all optical wavelength conversion", Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); doi: 10.1117/12.577172; https://doi.org/10.1117/12.577172

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