The study of second harmonic generation of the femtosecond laser pulses with a 950nm central wavelength

S. V. Alekseev; N. G. Ivanov; V. F. Losev; S. Yu. Mironov

doi:10.1117/12.2225421

15 December 2015 The study of second harmonic generation of the femtosecond laser pulses with a 950nm central wavelength

S. V. Alekseev, N. G. Ivanov, V. F. Losev, S. Yu. Mironov

Author Affiliations +

Proceedings Volume 9810, International Conference on Atomic and Molecular Pulsed Lasers XII; 98100P (2015) https://doi.org/10.1117/12.2225421
Event: XII International Conference on Atomic and Molecular Pulsed Lasers, 2015, Tomsk, Russian Federation

Abstract

The paper presents the results of theoretical and experimental studies of the second harmonic generation process in the Ti:sapphire femtosecond complex, which includes a generator of the femtosecond pulse, stretcher, regenerative amplifier, two multi-pass amplifiers, compressor and second-harmonic generator. This complex provides the 50-fs pulses with energy of 20 mJ and it is used as a master oscillator in THL-100 hybrid laser system, which operates in the visible region at a wavelength of 475 nm. Experiments and calculations for various beam parameters of the fundamental harmonic, such as radiation intensity, spatial profile of the beam and the level of the noise component were performed. It is theoretically shown that in the absence of the noise component in the beam of the fundamental wave a good uniformity of the second harmonic should be observed. When making the amplitude heterogeneities in the first harmonic even greater heterogeneities in the second harmonic are appeared. It is experimentally shown that with increasing of energy beam the inhomogeneity of the second harmonic beam increases.

Citation Download Citation

S. V. Alekseev, N. G. Ivanov, V. F. Losev, and S. Yu. Mironov "The study of second harmonic generation of the femtosecond laser pulses with a 950nm central wavelength", Proc. SPIE 9810, International Conference on Atomic and Molecular Pulsed Lasers XII, 98100P (15 December 2015); https://doi.org/10.1117/12.2225421

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