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Design of a wavelength control for coherent detection of high order modulation formats

: Fabrega, J.M.; Prat, J.; Molle, L.; Freund, R.


Jaworski, M. ; National Institute of Telecommunications, Warsaw; Instituto de Telecomunicações -IT-, Aveiro; Institute of Electrical and Electronics Engineers -IEEE-:
11th International Conference on Transparent Optical Networks, ICTON 2009 : Ponta Delgada, S. Miguel, Azores, Portugal, 28 June - 2 July 2009
Piscataway, NJ: IEEE, 2009
ISBN: 978-1-4244-4825-8
ISBN: 978-1-4244-4826-5
Art. 5185293
International Conference on Transparent Optical Networks (ICTON) <11, 2009, Ponta Delgada>
Conference Paper
Fraunhofer HHI ()

An automatic frequency control design is proposed and demonstrated. It is based on a high-speed optical VCO. An overall design has been performed, based on simulation results. Also, loop delay and phase noise impacts have been evaluated. Frequency discriminator and VCO proposed have been experimentally characterized, showing an agreement with simulation results.