All-optical phase regeneration with record PSA extinction ratio in a low-birefringence silicon germanium waveguide
| Autor: | Alexandros Kapsalis, Kyle R. H. Bottrill, Pierre Labeye, David J. Richardson, Adonis Bogris, Mohamed A. Ettabib, Kamal Hammani, Francesca Parmigiani, Periklis Petropoulos, Mickael Brun, Dimitris Syvridis, Sergio Nicoletti |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Birefringence Silicon Extinction ratio business.industry Amplifier chemistry.chemical_element Physics::Optics Keying 02 engineering and technology Polarization (waves) Atomic and Molecular Physics and Optics Silicon-germanium chemistry.chemical_compound 020210 optoelectronics & photonics Optics chemistry Regenerative heat exchanger 0202 electrical engineering electronic engineering information engineering business |
| Popis: | We report a low-power continuous wave-pumped phase sensitive amplifier (PSA)-based phase regenerator implemented in a passive silicon-based waveguide. A polarization assisted-PSA, consisting of two orthogonally-polarized pumps and a phase-locked signal copolarized to one of them, was implemented in a low-birefringence silicon germanium (SiGe) waveguide. The strong TE/TM modal symmetry of the waveguide and its large nonlinear coefficient enabled the achievement of an extremely large phase sensitive extinction ratio of approximately 29 dB for a total input power of only 21.3 dBm. This SiGe-based PSA was used to demonstrate phase regeneration on a 20 Gb/s differential phase-shift keying signal, thereby reducing its error vector magnitude and phase error by three and six times respectively and enabling a bit-error ratio improvement of up to 2 dB. |
| Databáze: | OpenAIRE |
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