Browsing by Author "Stenersen, Knut"

Now showing items 1-6 of 6

    • Beam shaping of high power laser diode bars 

      Rustad, Gunnar; Lippert, Espen; Stenersen, Knut (2001)
      A technique for reshaping the highly astigmatic beam from a high-power laser diode bar by use of two parallel mirrors is studied theoretically and experimentally. It is found that the output from the 1 µm x 1 cm laser ...

    • Elektrooptiske begrensere 

      Stenersen, Knut; Villanger, Asta Storebø; Brudevoll, Trond; Ajer, Halvor (2002)
      A description is given of physical mechanisms and promising materials which can be utilized in optical power limiting devices. The discussion is focussed on use of such limiters for protection of military electro-optic ...

    • Mid-infrared laser source - operators guide 

      Stenersen, Knut; Haakestad, Magnus; Arisholm, Gunnar (2002)
      A mid-infrared laser source, based on an optical parametric oscillator pumped by a Nd:YVO4 laser at 1.06 μm wavelength, is described. The nonlinear material is periodically-poled lithium niobate (PPLN). The source operates ...

    • Mid-infrared optical parametric oscillators based on periodically-poled lithium niobate 

      Arisholm, Gunnar; Stenersen, Knut; Rustad, Gunnar; Lippert, Espen; Haakestad, Magnus (2002)
      A study has been conducted of mid-infrared optical parametric oscillators (OPOs) based on periodically poled lithium niobate (PPLN) as the nonlinear optical material. Experiments have been performed with a number of 1.06 ...

    • Thermal effects in end-pumped solid state lasers - influence on resonator stability, beam quality, and output power 

      Stenersen, Knut; Lippert, Espen; Rustad, Gunnar; Arisholm, Gunnar (2001)
      A theoretical analysis is given of the magnitudes of thermal effects in end-pumped high-power solid state lasers, and their influence on the laser output characteristics, particularly the beam quality and conversion ...

    • ZnGep2-based optical parametric oscillator for µm generation 

      Arisholm, Gunnar; Lippert, Espen; Stenersen, Knut; Rustad, Gunnar; Nicolas, Stephane (2004)
      Operation of a ZnGeP2-based optical parametric oscillator (OPO) for generation of 8-11 μm radiation is studied. The primary source used to pump the OPO is a KTP-based OPO pumped by a Nd:YAG laser, giving up to 2 mJ pump ...