End pumped CW Nd:YAG amplifier for low power stable single-frequency laser was built and investigated. High extraction efficiency ∼30% in double-pass amplifier is achieved due to high small-signal gain provided with longitudinal pumping. Pumping of amplifier is near uniformly distributed along 2 laser rods with low concentration using two-lens relay between them in order to decrease end overheating.

http://ieeexplore.ieee.org/iel7/7537194/7549617/07549659.pdf

10 W level Nd:YAG end pumped amplifier

End pumped MOPA Nd:YAG pulsed laser was built and investigated. High extraction efficiency ∼50% in single-pass amplifier is achieved due to high small-signal gain provided with longitudinal pumping. Pumping of amplifier is near uniformly distributed along 2 laser rods with low concentration using two-lens relay between them in order to decrease end overheating.

6 mJ@3.3kHz Q-switched single mode single-frequency Nd:YAG end pumped laser

End pumped Nd:YAG ring laser with electro-optical Q-switcher was built. Pumping of each laser rod is provided by 45 Watt laser diode module coupled in high-brightness fiber. Single-frequency and unidirectional performance of laser is provided with injection seeding. End overheating of active rod was reduced by using low-concentration active medium. Thermo-optic distortions were compensated.

Z. V. Gorelova

Papers

3 mJ@3.3 kHz single mode single-frequency end pumped pulsed Nd:YAG ring laser