Analysis of the stability and optimizing operation of the single-side-band modulator based on re-circulating frequency shifter used for the T-bit/s optical communication transmission

Opt Express. 2010 Aug 16;18(17):17597-609. doi: 10.1364/OE.18.017597.

Abstract

The stability of single-sideband (SSB) modulator based recirculating frequency shifter (RFS) is analyzed theoretically. The optimum radio frequency (RF) drive peak-to-peak voltage used to drive the modulator is studied with considering the amplified spontaneous emission (ASE) noise of optical amplifier and crosstalk so as to obtain a maximum overall effective optical signal to noise ratio (OSNR) which is defined to quantify the quality of generated tones. Small desired tones number and lower RF peak-to-peak voltage can reduce the crosstalk effectively. While the trade-off should be considered since the larger desired tones number it is, the higher optimum drive voltage should be used when the SSB-based RFS reached the maximum OSNR. The theoretical results show that the optimum operation condition is helpful to improve the performance of RFS which can be a good application for the T-bit/s optical transmission in practice.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Artifacts
  • Fiber Optic Technology / instrumentation*
  • Fiber Optic Technology / methods*
  • Models, Theoretical*
  • Nonlinear Dynamics
  • Telecommunications / instrumentation*