Simultaneous nonlinear wavelength and mode conversion for high-brightness blue sources

被引：2

作者：

Lindberg, Robert ^{[1
]}

Liu, Xiao ^{[2
]}

Zukauskas, Andrius ^{[1
]}

Ramachandran, Siddharth ^{[2
]}

Pasiskevicius, Valdas ^{[1
]}

机构：

[1] Royal Inst Technol, Dept Appl Phys, Hannes Alfvens Vag 11, S-11419 Stockholm, Sweden

[2] Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2021年 / 38卷 / 11期

关键词：

2ND-HARMONIC GENERATION; LIDAR; LIGHT;

D O I：

10.1364/JOSAB.436188

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate frequency doubling of focused Bessel-like higher order fiber modes in a one-dimensionally quasi-phase matched structured KTP crystal. A single higher-order fiber mode, LP0,7, was generated at 971 nm using a fiber optical parametric amplifier pumped by sub-nanosecond pulses at 1064 nm. Frequency doubling to 485.5 nm was achieved with a maximum conversion efficiency of 48%, which produced a highly structured blue beam without any brightness improvement with respect to the fundamental beam. By optimizing the phase mismatch, we also experimentally demonstrate clean on-axis conversion-resulting from cascaded chi((2)) : chi((2)) processes, which is in good agreement with our numerical simulations, that give rise to brightness enhancement. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：3491 / 3498

页数：8

共 31 条

[1] Agrawal GP., 2019, Nonlinear fiber optics
[2] INTERACTIONS BETWEEN LIGHT WAVES IN A NONLINEAR DIELECTRIC
ARMSTRONG, JA
BLOEMBERGEN, N
DUCUING, J
PERSHAN, PS
[J]. PHYSICAL REVIEW, 1962, 127 (06): : 1918 - +
[3] Space-based lidar measurements of global ocean carbon stocks
Behrenfeld, Michael J.
Hu, Yongxiang
Hostetler, Chris A.
Dall'Olmo, Giorgio
Rodier, Sharon D.
Hair, John W.
Trepte, Charles R.
[J]. GEOPHYSICAL RESEARCH LETTERS, 2013, 40 (16) : 4355 - 4360
[4] Millijoule-class Yb-doped pulsed fiber laser operating at 977 nm
Boullet, Johan
Dubrasquet, Romain
Medina, Capucine
Bello-Doua, Ramatou
Traynor, Nicholas
Cormier, Eric
[J]. OPTICS LETTERS, 2010, 35 (10) : 1650 - 1652
[5] Boyd RW, 2008, NONLINEAR OPTICS, 3RD EDITION, P1
[6] Overlap relation between free-space Laguerre Gaussian modes and step-index fiber modes
Bruening, Robert
Zhang, Yingwen
Mclaren, Melanie
Duparre, Michael
Forbes, Andrew
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2015, 32 (09) : 1678 - 1682
[7] Wavelength-agile high-power sources via four-wave mixing in higher-order fiber modes
Demas, J.
Prabhakar, G.
He, T.
Ramachandran, S.
[J]. OPTICS EXPRESS, 2017, 25 (07): : 7455 - 7464
[8] Free-space beam shaping for precise control and conversion of modes in optical fiber
Demas, Jeff
Rishoj, Lars
Ramachandran, Siddharth
[J]. OPTICS EXPRESS, 2015, 23 (22): : 28531 - 28545
[9] SELF-FOCUSING AND SELF-DEFOCUSING BY CASCADED 2ND-ORDER EFFECTS IN KTP
DESALVO, R
HAGAN, DJ
SHEIKBAHAE, M
STEGEMAN, G
VANSTRYLAND, EW
VANHERZEELE, H
[J]. OPTICS LETTERS, 1992, 17 (01) : 28 - 30
[10] DIFFRACTION-FREE BEAMS
DURNIN, J
MICELI, JJ
EBERLY, JH
[J]. PHYSICAL REVIEW LETTERS, 1987, 58 (15) : 1499 - 1501

← 1 2 3 4 →