PUI Characteristics and Beam Profiles

Determination of characteristics of laser diodes before and after packaging on heat sink

Standard characterization

  • Material uniformity across array of emitters (bars)
  • Power-current and voltage-current characteristics
  • Measurement of typical temperatures T0 and T1
  • Determination of thermal resistance Rth of lasers after packaging
  • Measurements of degree of polarization

Spectral characterization

  • Measurement of spectra and linewidth

Determination of characteristics of BA, RW and tapered laser diodes

  • Near field, far field and beam waist
  • Beam quality (M2)