Continuous-wave intracavity frequency-doubled Nd:YAG-KNbO3 blue laser at 473 nm

Nicolaie A. Pavel; Ichiro Shoji; Jiro Saikawa; Takunori Taira

doi:10.1117/12.582806

21 October 2004 Continuous-wave intracavity frequency-doubled Nd:YAG-KNbO₃ blue laser at 473 nm

Nicolaie A. Pavel, Ichiro Shoji, Jiro Saikawa, Takunori Taira

Proceedings Volume 5581, ROMOPTO 2003: Seventh Conference on Optics; (2004) https://doi.org/10.1117/12.582806
Event: ROMOPTO 2003: Seventh Conference on Optics, 2003, Constanta, Romania

Abstract

High power blue radiation obtained by intracavity frequency-doubling of a continuous wave diode end-pumped Nd:YAG laser operating on the ⁴F_3/2 → ⁴I_9/2 transition is reported. The maximum output power for the randomly polarized beam at 946 nm was 3.7 W for 9.5 W absorbed pump power at 808 nm; the slope efficiency with respect to the absorbed pump power was 44%. For the polarized fundamental radiation the maximum power was 1.1 W (26% optical-to-optical efficiency with respect to the absorbed power), the laser operating with 38% slope efficiency. Intracavity frequency-doubling by a 2.0-mm thick KNbO₃ crystal placed in a linear resonator yielded 159-mW single-ended blue-output with optical conversion efficiency versus the absorbed pump power of 4.8%. Using a V-type resonator increased the blue power at 418 mW with 11.6% optical conversion efficiency in absorbed power; the laser optical conversion efficiency was 6.7%, while the conversion of the available infrared power reached 50%.

Citation Download Citation

Nicolaie A. Pavel, Ichiro Shoji, Jiro Saikawa, and Takunori Taira "Continuous-wave intracavity frequency-doubled Nd:YAG-KNbO₃ blue laser at 473 nm", Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); https://doi.org/10.1117/12.582806

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