Coherent light generators – Particular beam control device – Q-switch
Reexamination Certificate
2006-10-31
2006-10-31
Rodriguez, Armando (Department: 2828)
Coherent light generators
Particular beam control device
Q-switch
C372S012000
Reexamination Certificate
active
07130318
ABSTRACT:
This invention is a kind of electrooptic Q-switch element made of a single crystal and belongs to the application of crystal in electrooptic technology field. The invention consists of electrooptic Q-switch which is made of La3Ga5SiO14or Nd:La3Ga5SiO14or the other related crystal materials such as La3Ga5-xAlxSiO14, Sr3Ga2Ge4SiO14, Na2CaGe6O14, Ca3Ga2Ge4O14, La3Ga5.5Nb0.5O14and La3Ga5.5Ta0.5O14with the common shape or a specific shape containing Brewster angle as shown in figure. This kind of electrooptic Q-switch can be used in YAG laser and other laser. It overcomes the shortages of the commercial Q-switches, such as the high, un-adjustable, low stable half-wave voltage and great half-wave voltage variation with temperature. The advantage of this kind of electrooptic Q-switch is its low, adjustable, high stable half-wave voltage.
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Bohm et al., “Czochralski growth and characterization of piezoelectric single crystals with langasite structure: La3Ga5SiO14(LGS), La3Ga5.5Nb0.5O14(LGN) and La3Ga5.5Ta0.5O14(LGT) Part I,”Journal of Crystal Growth, 204 (1999) pp. 128-136.
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Hu Xiaobo
Jiang Minhua
Wang Jiyang
Yin Xin
Zhang Huaijin
Alston & Bird LLP
Rodriguez Armando
Shandong University
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