Ridge Waveguide or Fabry Perot Lasers operate spatially single mode. This type of laser diode is used in many applications, e.g. metrology, spectroscopy, bioanalytics, life science, and up-conversion fiber lasers.eagleyard offers standard diodes with output power of 100 mW. Absolute top performers up to 300 mW are available for particular wavelengths. Anti-reflective versions, so called RWEs, of each type are available for extended cavity applications.