We obtain high peak power pulses in megawatt range of the first （1181 nm）, second （1321 nm）, and third order （1500 nm） Stokes radiation from self-conversion of the 106%nm laser radiation based on Nd：KGW laser. ...We obtain high peak power pulses in megawatt range of the first （1181 nm）, second （1321 nm）, and third order （1500 nm） Stokes radiation from self-conversion of the 106%nm laser radiation based on Nd：KGW laser. The maximum output energy of the first order Stokes laser is 35.3 m J, which is to our knowledge, the highest reported energy in an intracavity Q-switched laser. The third order Stokes pulse is obtained in an intraeavity Q-switched laser.展开更多
In a certain amplification system, signal laser can be amplified from 1 nJ to 5 J. To realize a high quality imaging transfer, meet beam diameter expansion requirement, and get good filtering effects, three spatial fi...In a certain amplification system, signal laser can be amplified from 1 nJ to 5 J. To realize a high quality imaging transfer, meet beam diameter expansion requirement, and get good filtering effects, three spatial filters are designed and assembled. Lenses in these spatial filters can be assembled and adjusted by their reflection spots to meet wave-front requirements. In this letter, we analyze precision of the assembling, and make a ray-tracing simulation to discuss the relation between assembling precision and lenses parameters. On the optimized distance of 1000 mm, adjusting precision of lens tilt can reach 5 mrad.展开更多
文摘We obtain high peak power pulses in megawatt range of the first （1181 nm）, second （1321 nm）, and third order （1500 nm） Stokes radiation from self-conversion of the 106%nm laser radiation based on Nd：KGW laser. The maximum output energy of the first order Stokes laser is 35.3 m J, which is to our knowledge, the highest reported energy in an intracavity Q-switched laser. The third order Stokes pulse is obtained in an intraeavity Q-switched laser.
文摘In a certain amplification system, signal laser can be amplified from 1 nJ to 5 J. To realize a high quality imaging transfer, meet beam diameter expansion requirement, and get good filtering effects, three spatial filters are designed and assembled. Lenses in these spatial filters can be assembled and adjusted by their reflection spots to meet wave-front requirements. In this letter, we analyze precision of the assembling, and make a ray-tracing simulation to discuss the relation between assembling precision and lenses parameters. On the optimized distance of 1000 mm, adjusting precision of lens tilt can reach 5 mrad.
