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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1996),
  • paper CThN2

A self-starting holographic Ti:sapphire laser

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Abstract

Experimental and theoretical studies have shown that gain gratings in inverted media can exhibit greater-than-unity diffraction efficiency and in a four-wave mixing (FWM) can produce very high phase- conjugate reflectivity.1 Such experiments have been performed recently with laser- pumped Ti:sapphire (Ti:S) resulting in peak reflectivities of nearly 400% at 780 nm with a single-pass gain of approximately 160.2 The advantage of using Ti:S over many other gain media is that it has the benefits of all-solid-state technology, broad tunability (660-1100 run), high stimulated emission cross-section and high damage threshold to allow intense (a few J/cm2) laser pumping and the achievement of high single-pass gains.

© 1996 Optical Society of America

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