Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7925611 | Optics Communications | 2018 | 4 Pages |
Abstract
We demonstrate generation and optical parametric amplification of broadband chirped pulses in the range of 1.8-2.5μm. The setup is built around Ti:sapphire oscillator as a seed source and 1 kHz Nd:YAG laser system as a pump source. Visible broadband seed pulses are temporally stretched and amplified in a non-collinear optical parametric amplifier before being mixed with fundamental harmonic of the pump laser. Difference frequency generation between positively-chirped broadband pulses centered at 0.7μm and non-chirped narrowband pulses at 1064 nm produces negatively-chirped wide spectral bandwidth pulses in the infrared. After subsequent parametric amplification, pulses with more than 0.5 mJ energy were obtained with spectral bandwidth supporting transform-limited pulse durations as short as 23 fs.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
A. MarcinkeviÄiÅ«tÄ, K. Michailovas, R. Butkus,