Issue |
EPL
Volume 94, Number 4, May 2011
|
|
---|---|---|
Article Number | 44002 | |
Number of page(s) | 6 | |
Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
DOI | https://doi.org/10.1209/0295-5075/94/44002 | |
Published online | 06 May 2011 |
Spectral combination of ultrashort laser pulses
National Institute for Lasers, Plasma and Radiation Physics (INFLPR) - 409, Atomistilor Str., Magurele, Ilfov, 077125, Romania, EU
Received:
16
March
2011
Accepted:
7
April
2011
An ultrashort and ultraintense pulses combination method is proposed, based on the spectral combination of parallel laser pulses, with complementary spectra, in chirped pulse amplification (CPA) laser systems. In a proof-of-principle experiment, it is demonstrated that two long pulses of 330 fs can be overlapped in a collinear way, to produce a shorter pulse, of 190 fs. As a consequence, it is shown that the power for the combined pulse obtained is up to a factor of 1.7 larger than the sum of the peak powers of each individual pulse. The spectral phase of the combined pulse was characterized with λ/10 accuracy, using spectral interferometry. A way to implement the method at parallel CPA laser facilities, using no transmission optics, is indicated.
PACS: 42.60.By – Design of specific laser systems / 42.65.Re – Ultrafast processes; optical pulse generation and pulse compression / 42.79.Gn – Optical waveguides and couplers
© EPLA, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.