Cascaded wavelength conversion based on cross-gain modulation and cross-phase modulation in SOAs

All-optical wavelength converters (AOWCs) that utilize nonlinearities in semiconductor optical amplifiers (SOAs) have attracted considerable research interest. AOWCs based on cross gain modulation (XGM) have a large dynamic range of the input optical signal power but a low extinction ratio (ER) and a high chirp, whereas AOWCs based on cross phase modulation (XPM) provide a low chirp and a high ER but suffer from a relative small input power dynamic range. We point out that there seems to be some complementarity between XGM and XPM. Based on this, we propose a novel scheme for cascaded wavelength conversion based on cross gain modulation and cross phase modulation in SOAs thus is expected to have a high ER and a large input power dynamic range simultaneously. The wavelength conversion operation includes two stages, that is, XGM in the first stage followed by the stage of XPM. In the XGM stage, we use a band pass filter to increase the frequency response of the SOA. In the XPM, we use the bidirectional input scheme for MZI to improve the response of XPM and cancel XGM-induced intensity unbalance to get a relative perfect interference.

[1]  S. Kitamura,et al.  3.8-THz wavelength conversion of picosecond pulses using a semiconductor delayed-interference signal-wavelength converter (DISC) , 1998, IEEE Photonics Technology Letters.

[2]  Derek Nesset,et al.  All-optical wavelength conversion using SOA nonlinearities , 1998 .

[3]  S. L. Danielsen,et al.  All-optical wavelength conversion by semiconductor optical amplifiers , 1996 .

[4]  S. Cabot,et al.  All-optical wavelength conversion using a pulse reformatting optical filter , 2004, Journal of Lightwave Technology.

[5]  A. Kloch,et al.  All-optical wavelength conversion scheme in SOA-based interferometric devices , 2000 .

[6]  Zhang Xin-Liang,et al.  Wavelength converter based on cross-gain modulation in multi-electrode single-port-coupled semiconductor optical amplifier , 2006 .

[7]  E. Tangdiongga,et al.  Error-free all-optical wavelength conversion at 160 gb/s using a semiconductor optical amplifier and an optical bandpass filter , 2006, Journal of Lightwave Technology.

[8]  Dexiu Huang,et al.  Experimental observation of tunable wavelength down- and up-conversions of ultra-short pulses in a periodically poled LiNbO3 waveguide , 2007 .

[9]  Evandro Conforti,et al.  Nonhomogeneous current injection for the enhancement of semiconductor optical amplifier-based wavelength converters , 2006 .

[10]  Chinlon Lin,et al.  Nonlinear polarization rotation in a dispersion-flattened photonic-crystal fiber for ultrawideband (>100 nm) all-optical wavelength conversion of 10 Gbit/s nonreturn-to-zero signals. , 2006, Optics letters.

[11]  San-Liang Lee,et al.  Performance enhancement on SOA-based four-wave-mixing wavelength conversion using an assisted beam , 2002, IEEE Photonics Technology Letters.

[12]  J. Chen,et al.  Enhancing the frequency response of cross-polarization wavelength conversion , 2005, IEEE Photonics Technology Letters.

[13]  G. Agrawal.  Fiber‐Optic Communication Systems , 2021 .

[14]  San-Liang Lee,et al.  Two-section Bragg-wavelength-detuned DFB lasers and their applications for wavelength conversion , 2005, IEEE Journal of Selected Topics in Quantum Electronics.