Refined metrology of spatio-temporal dynamics of nanosecond laser pulses

R. Diaz; R. Courchinoux; J. Luce; C. Rouyer; J.-L. Rullier; J.-Y. Natoli; L. Lamaignère

doi:10.1117/12.2195470

23 November 2015 Refined metrology of spatio-temporal dynamics of nanosecond laser pulses

R. Diaz, R. Courchinoux, J. Luce, C. Rouyer, J.-L. Rullier, J.-Y. Natoli, L. Lamaignère

Proceedings Volume 9632, Laser-Induced Damage in Optical Materials: 2015; 96321S (2015) https://doi.org/10.1117/12.2195470
Event: SPIE Laser Damage, 2015, Boulder, Colorado, United States

Abstract

Seeded nanosecond Q-switched Nd:YAG lasers working with an unstable resonator and a variable-reflectivity-mirror are widely used for they represent useful sources for stable and repeatable light-matter-interaction experiments. Moreover, in most setups, the fundamental wavelength is converted to higher harmonics. When the injection seeder is turned off, random longitudinal mode beating occurs in the cavity, resulting in strong variations of the temporal profile of the pulses. The generated spikes can then be ten times higher than the maximum of equivalent seeded pulses. This strong temporal incoherence is shown to engender spatial incoherence in the focal plane of such unseeded pulses leading to an instantaneous angular displacement of tens of µrad. This effect is even more pronounced after frequency conversion.

Citation Download Citation

R. Diaz, R. Courchinoux, J. Luce, C. Rouyer, J.-L. Rullier, J.-Y. Natoli, and L. Lamaignère "Refined metrology of spatio-temporal dynamics of nanosecond laser pulses", Proc. SPIE 9632, Laser-Induced Damage in Optical Materials: 2015, 96321S (23 November 2015); https://doi.org/10.1117/12.2195470

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