• stretcher section diagramThe two beams from the oscillator are sent to a dual-wavelength pulse stretcher.
  • As seen, the beams have different incident angles, so they copropagate from the grating to the spherical mirror.
  • The 1200-line/mm grating is 500cm and the 15.25cm-diameter focusing mirror has a one meter focal length.
  • The pulses are stretched to approximately 200ps.