Abstract
Combining high efficiency and wide wavelength tunability in second harmonic generation (SHG) has been a challenge for many years. By using waveguides, it is possible to increase the conversion efficiency (relative to bulk) because the beams are tightly confined and yield higher intensity for the same power. However, in fabricated waveguides the structure is fixed, so wavelength tuning is limited. Recently we demonstrated the use of waveguides induced by photorefractive solitons for SHG.1,2
© 2000 Optical Society of America
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