PICWave

Analysis Tools

PICWave provides you with a large variety of analysis utilities.

• Optical spectra (spectra of complex optical amplitude, including optical phase) - time averaged and
  time-evolving

  
  Time evolving optical spectrum illustrating the effect of four-wave mixing in an SOA:
  although only three channels are injected (0nm, +1nm and 44nm), you can observe power
  in many other wavelengths generated by four-wave mixing

• Intensity spectra (spectra of optical intensity) - time averaged and time-evolving
• RIN Spectra

  
  RIN spectrum for a InGaAsP CW laser

• FM and AM Spectra (S21)
  

  
  Frequency (orange line) and amplitude (blue line) modulation response of a InGaAsP Fabry-Perot laser
  obtained by injecting a CW laser (with noise sources switched off) with a small current impulse 

• Eye Diagrams

  
  
  Eye diagram for the simulation of the output of an Active 2R Regenerator,
  including noise due to spontaneous emission and recombination

• LI curves with threshold and differential efficiency measurements

  
  LI curve fitting for an InGaAsP distributed feedback (DFB) laser

• Group delay and group velocity dispersion spectra
  

  
  
  Group delay and dispersion spectra of a tanh-apodised Bragg grating,
  as might be used for dispersion compensation at the end of a standard telecommunications fibre.

• Longitudinal and lateral profiles (showing current spreading, carrier density, optical power, current distribution)
  

  
  (a)                                                             (b)
  
  Longitudinal hole burning in a quarter-wavelength shifted DFB laser:
  (a) optical power along the z-axis (blue: total, green: forward, red: backward)
  and (b) carrier density along the z-axis at the centre of the laser