Abstract
Under extended phase-matching conditions, the first frequency derivative of the wave-vector mismatch is zero and the phase-matching bandwidth is greatly increased. We present extensive three-wave mixing measurements of the wave-vector mismatch and obtain improved Sellmeier equations for KTiOPO4. We observed a type-II extended phase-matching bandwidth of 100 nm for second-harmonic generation in periodically poled KTiOPO4, centered at the fundamental wavelength of 1584 nm. Applications in quantum entanglement and frequency metrology are discussed. (C) 2004 American Institute of Physics.
Original language | English |
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Pages (from-to) | 1644-1646 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 84 |
Issue number | 10 |
DOIs | |
Publication status | Published - 8 Mar 2004 |
Keywords
- PULSES