Open AccessHigh-peak power nanosecond optical parametric amplifier with periodically poled KTP
Author(s) -
Anna Fragemann,
Valdas Pasiskevicius,
G. Karlsson,
Fredrik Laurell
Publication year - 2003
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.001297
Subject(s) - optics , nanosecond , signal beam , materials science , signal (programming language) , beam (structure) , amplifier , optical amplifier , optical parametric amplifier , parametric statistics , lithium triborate , nonlinear optics , laser , optoelectronics , physics , statistics , mathematics , cmos , computer science , programming language
A two-stage optical parametric amplifier generating 5 ns 208 kW peak power pulses in the spectral region at 1.535 microm in a diffraction-limited beam was realized in a single periodically poled KTP crystal. The maximum small-signal gain for the two stages reached 75dB and the total conversion efficiency was 30%. An analysis of the small-signal gain dependence on the M2 of the pump beam is presented for the collinear and noncollinear OPA. Efficient spectral broadening of the signal was demonstrated in short pieces of single-mode telecommunication fiber.