P. Almeida

Publications (2)0 Total impact

• Source

  Available from: ac.uk

  Conference Proceeding: Processing Ultrafast Optical Signals in Broadband Telecom Systems by means of Cascaded Quadratic Nonlinearities

  K. Gallo, J. Prawiharjo, F. Parmigiani, P. Almeida, P. Petropoulos, D.J. Richardson
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  ABSTRACT: Quadratic optical nonlinearities offer several attractive features for the implementation of ultra-fast, low-noise and transparent telecom devices. Technological progress has dramatically increased their efficiency, driving a steady move towards practical applications. In this talk we shall discuss the use of cascaded quadratic interactions in LiNbO₃ integrated devices for pulse diagnostics, format conversion and signal regeneration in ultra-fast multi-wavelength telecom systems
  Transparent Optical Networks, 2006 International Conference on; 07/2006
• Conference Proceeding: A direct assessment of the performance of pulse shaping superstructured fiber gratings using an optical sampling oscilloscope

  F. Parmigiani, P. Petropoulos, P. Almeida, M. Ibsen, J. Lee, D. Richardson
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  ABSTRACT: An optical sampling oscilloscope is used to characterize short pulses which have been shaped using superstructured FBGs. The performance of square-pulse-generating and pulse-multiplying gratings are examined directly in real time, with a resolution of 2ps, excellent pulse quality is confirmed.
  Optical Fiber Communications Conference, 2003. OFC 2003; 04/2003