Cr-ZnSe passively Q-switched fiber-bulk Ho:YAG hybrid laser

Yuri Terekhov; Igor S. Moskalev; Dmitri V. Martyshkin; Vladimir V. Fedorov; Sergey B. Mirov

doi:10.1117/12.842597

17 February 2010 Cr-ZnSe passively Q-switched fiber-bulk Ho:YAG hybrid laser

Yuri Terekhov, Igor S. Moskalev, Dmitri V. Martyshkin, Vladimir V. Fedorov, Sergey B. Mirov

Proceedings Volume 7578, Solid State Lasers XIX: Technology and Devices; 75781J (2010) https://doi.org/10.1117/12.842597
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

The objective of this work was to develop a compact and efficient Tm-fiber-Ho:YAG, hybrid laser passively Q-switched by Cr:ZnSe saturable absorber. We used a folded semi-hemispherical 10 cm long cavity with a plane output coupler and a 0.5 m concave high reflector. In these experiments we studied the performance of two high optical quality Cr:ZnSe crystals as saturable absorbers with initial transmissions of 93.9% and 70% at 2.1 μm. With the 93.9% transmission crystal, passive Q-switching was realized with a maximum output power of 5 W, pulse energy of 0.5 mJ, pulse duration of 150 ns, and Q-switched-to-CW-mode extraction efficiency of 60%. With the 70% transmission crystal, passive Qswitching was achieved with a 75% Q-switched-to-CW-mode extraction efficiency, pulse energy of 3 mJ, and duration of 7ns. The laser demonstrated sustained damage-free, TEM000 operation with 0.5 MW of peak power showing promise for applications requiring high-peak-power, diffraction-limited beams, and single-frequency regimes of operation.

Citation Download Citation

Yuri Terekhov, Igor S. Moskalev, Dmitri V. Martyshkin, Vladimir V. Fedorov, and Sergey B. Mirov "Cr-ZnSe passively Q-switched fiber-bulk Ho:YAG hybrid laser", Proc. SPIE 7578, Solid State Lasers XIX: Technology and Devices, 75781J (17 February 2010); https://doi.org/10.1117/12.842597

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available