Electro-optic Q-switch
AssigneeBoston Applied Technologies, Incorporated
InventorsYingyin Zou, Qiushui Chen, Run Zhang, Hua Jiang
Life of this patent
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Abstract
An electro-optic Q-switch for generating sequence of laser pulses was disclosed. The Q-switch comprises a quadratic electro-optic material and is connected with an electronic unit generating a radio frequency wave with positive and negative pulses alternatively. The Q-switch is controlled by the radio frequency wave in such a way that laser pulse is generated when the radio frequency wave changes its polarity
Claims8
A Q-switch laser apparatus to deliver a sequence of laser pulses comprising:
- a laser cavity formed by a pair of reflective surfaces;
- a laser gain medium mounted in said laser cavity;
- optic coupling elements;
- a continuous optical pump radiation source whose pump radiation is coupled through said coupling elements in said laser gain medium;
- a quadratic electro-optic Q-switch mounted in said laser cavity, wherein the Q-switch comprises a La modified PMN-PT material;
- said Q-switch being connected with an electronic unit generating a radio frequency wave with positive and negative pulses alternatively;
- and
- said Q-switch being controlled by the radio frequency wave in such a way that laser pulse is generated when the radio frequency wave changes its polarity.
Q-switch laser apparatus to deliver a sequence of laser pulses comprising:
- a laser cavity having a pair of reflective surfaces;
- a laser gain medium mounted in said laser cavity;
- optic coupling elements;
- a continuous optical pump radiation source whose pump radiation is coupled through said coupling elements in said laser gain medium;
- a quadratic electro-optic Q-switch mounted in said laser cavity, wherein the Q-switch comprises a La modified PMN-PT material;
- said Q-switch being connected with an electronic unit generating a radio frequency wave with positive and negative pulses alternatively;
- said Q-switch being controlled by the radio frequency wave in such a way that laser pulse is generated when the radio frequency wave changes its polarity;
- and
- a polarizer mounted to said Q-switch.
A Q-switch laser apparatus to deliver a sequence of laser pulses comprising:
- a laser cavity having a pair of reflective surfaces;
- a laser gain medium mounted in said laser cavity;
- a frequency doubling KTP mounted in said laser cavity;
- optic coupling elements;
- a continuous optical pump radiation source whose pump radiation is coupled through said coupling elements in said laser gain medium;
- a quadratic electro-optic Q-switch mounted in said laser cavity, wherein the Q-switch comprises a La modified PMN-PT material;
- said Q-switch being connected with an electronic unit generating a radio frequency wave with positive and negative pulses alternatively;
- and
- said Q-switch being controlled by the radio frequency wave in such a way that laser pulse is generated when the radio frequency wave changes its polarity.
Dependencies are inferred from the claim text.