On the performance of a linearized dual parallel Mach-Zehnder   electro-optic modulator
  The performance of a dual parallel differential Mach-Zehnder modulator broadband linearization architecture is analysed. This study provides experimental and analytical results showing an enhancement up to 20 dB in the 3rd-order intermodulation distortion factor at 5 GHz using RF and optical asymmetrical feeding factors. 
Joaquin Perez and Roberto Llorente
physics.optics