28 May 2014 Femtosecond cascaded third-harmonic generation with simultaneous walk-off effect by multigrating periodically poled MgO-doped lithium niobate
Author Affiliations +
Optical Engineering, 53(5), 056119 (2014). doi:10.1117/1.OE.53.5.056119
Abstract
The explicit formula solutions of cascaded third-harmonic generation (THG) process were derived based on coupled-wave equations. Conversion efficiency (CE) with the simultaneous temporal walk-off effect is theoretically investigated by use of split-step Fourier transform method, and the obtained results show that the CE of cascaded THG can be adjusted by phase mismatch, i.e., Δk SHG and Δk THG . The walk-off effect can be eliminated to some extent by optimizing pump intensity. Using the multiple-grating periodically poled MgO-doped lithium niobate (MgO: PPLN), pumped by 50 fs optical parametric amplifier pulses, the CE of the cascaded THG was achieved (10.8%), and a detailed analysis was presented.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Wenchao You, Shuanggen Zhang, Xiurong Ma, Qingyue Wang, "Femtosecond cascaded third-harmonic generation with simultaneous walk-off effect by multigrating periodically poled MgO-doped lithium niobate," Optical Engineering 53(5), 056119 (28 May 2014). http://dx.doi.org/10.1117/1.OE.53.5.056119
JOURNAL ARTICLE
6 PAGES


SHARE
KEYWORDS
Second-harmonic generation

Femtosecond phenomena

Third-harmonic generation

Lithium niobate

Picosecond phenomena

Crystals

Communication engineering

RELATED CONTENT

Hyperspectral plasmonics
Proceedings of SPIE (February 21 2011)
Effects of Pulse Shaping in Laser Spectroscopy
Proceedings of SPIE (January 01 1987)
Novel materials for laser refrigeration
Proceedings of SPIE (February 12 2009)

Back to Top