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Efficient ultra-fast all-optical wavelength converters with Ti:PPLN waveguides

: Nouroozi, R.; Suche, H.; Hu, H.; Richter, T.; Babazadeh, A.; Schubert, C.; Sohler, W.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Photonics Society:
16th International Conference on Transparent Optical Networks, ICTON 2014 : Graz, Austria, 6 July 2014 - 10 July 2014
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-5600-5
ISBN: 978-1-4799-5601-2
ISBN: 978-1-4799-5602-9
International Conference on Transparent Optical Networks (ICTON) <16, 2014, Graz>
Fraunhofer HHI ()

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.