Frequency doubling crystal and frequency doubled external cavity laser
OwnerCarla Miner, Sherri Sparling +5inventors
InventorsCarla Miner, Sherri Sparling, Barbara Paldus, Steven Wallace, Bruce Richman, Chris Rella, Guido Knippels
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Abstract
A periodically poled second harmonic generating crystal having a long axis, said crystal comprising Magnesium Oxide doped Congruent Lithium Niobate, Magnesium Oxide doped Stoichiometric Lithium Niobate, Stoichiometric Lithium Tantalate or Potassium Titanyl Phosphate wherein the poling planes of said periodically poled crystal are canted relative to said axis and a doubled, external cavity laser utilizing said crystal, comprising an external cavity pump laser section and an extra-cavity frequency doubling section.
Claims30
A periodically poled second harmonic generating crystal having a long axis X, said crystal comprising Magnesium Oxide doped Congruent Lithium Niobate, Magnesium Oxide doped Stoichiometric Lithium Niobate, Stoichiometric Lithium Tantalate or Potassium Titanyl Phosphate wherein the poling planes of said periodically poled crystal are canted relative to said X axis at an angle ranging from about 0.2° to about 2.0°.
A process comprising the steps of:
- i) fabricating a substantially planar wafer having top and bottom surfaces, comprising crystalline Magnesium Oxide doped Congruent Lithium Niobate, Magnesium Oxide doped Stoichiometric Lithium Niobate, Stoichiometric Lithium Tantalate or Potassium Titanyl Phosphate,
- ii) producing on said wafer a plurality of periodically poled domains whose planes are vertically disposed between said top and bottom surfaces,
- iii) removing a right angle rectangular parallelepiped shaped segment of said poled area, the long axis of which segment is at an angle a relative to the normal to said poling planes.
Dependencies are inferred from the claim text.