Opto Electronics and Fibre Optics

We have years of experience with optical components and subsystems in both the telecoms and sensor applications. This includes experience with

  • Visible and invisible wavelength semiconductor lasers, low and high power
  • Gigabit transmitters and receivers to 10Gbit/s
  • Tunable lasers
  • Digital drivers and detectors up to 12G
  • Modulators (Electro-absorption, Electro-optic, Mach-Zehnder, Acousto-optic)
  • PIN and APD detectors
  • Photo Multiplier Tube (PMT) detectors
  • Passive optical components (WDMs, filters, isolators, splitters, etc.)
  • Erbium Doped Fibre Amplifiers (EDFAs)

Many optical sensor systems use the non-ideal and non-linear effects of the optical fibre that are avoided and minimised in telecoms systems. For instance the Rayleigh scattering that is the main cause of power loss in single mode fibre, is also the mechanism used by Optical Time Domain Reflectometers (OTDRs). Other non-linear effects such as Brillouin scattering are also used for sensors.