Title :
Efficient ultra-fast all-optical wavelength converters with Ti:PPLN waveguides
Author :
Nouroozi, Rahman ; Suche, Hubertus ; Hao Hu ; Richter, Thomas ; Babazadeh, A. ; Schubert, Colja ; Sohler, Wolfgang
Author_Institution :
Phys. Dept., Inst. for Adv. Studies in Basic Sci., Zanjan, Iran
Abstract :
Applications of packaged and pigtailed (tunable) integrated all-optical Ti:PPLN wavelength converters (AOWC) with different modulation formats (RZ-DQPSK, 16-ary QAM) are reported. The devices take advantage of cascaded second order nonlinear interactions allowing tuning with either one or two control waves via cSHG/DFG or cSFG/DFG. Operation of polarization insensitive AOWCs on a variety of presented high-bit-rate (up to 320 Gb/s) transmission experiments and mid-span chromatic dispersion compensation in the C-band with negligible penalties promises great potential for application in transparent all-optical networks (TAON). In addition recent progress with respect to bandwidth and efficiency of the cSHG/DFG-based wavelength converters is reported. The efficiency is increased by pump-resonant wavelength conversion and by increased interaction length in a phase controlled double-pass scheme.
Keywords :
integrated optics; lithium compounds; next generation networks; optical communication equipment; optical harmonic generation; optical waveguides; optical wavelength conversion; quadrature amplitude modulation; quadrature phase shift keying; titanium; 16-ary QAM; LiNbO3:Ti; RZ-DQPSK; Ti:PPLN waveguides; cSFG-DFG; cSHG-DFG; cascaded second harmonic generation; cascaded second order nonlinear interactions; cascaded sum frequency generation; difference-frequency generation; high-bit-rate transmission experiments; integrated all-optical Ti:PPLN wavelength converters; interaction length; mid-span chromatic dispersion compensation; modulation formats; phase controlled double-pass scheme; polarization-insensitive AOWC; pump-resonant wavelength conversion; quadrature amplitude modulation; return-to-zero differential quadrature phase shift keying; transparent all-optical networks; ultrafast all-optical wavelength converters; Integrated optics; Modulation; Nonlinear optics; Optical resonators; Optical waveguides; Optical wavelength conversion; Wavelength measurement; PPLN channel guide; integrated optics; wavelength conversion;
Conference_Titel :
Transparent Optical Networks (ICTON), 2014 16th International Conference on
Conference_Location :
Graz
DOI :
10.1109/ICTON.2014.6876314
