Picosecond fiber MOPA pumped supercontinuum source with 39 W output power.
We report a picosecond fiber MOPA pumped supercontinuum source with 39 W output, spanning at least 0.4-2.25 microm at a repetition rate of 114.8 MHz. The 2m long PCF had a large, 4.4 microm diameter core and a high-delta design which led to an 80% coupling efficiency, high damage threshold and rapid generation of visible continuum generation from the picosecond input pulses. The high and relatively uniform power density across the visible spectral region was approximately 31.7 mW/nm corresponding to peak power density of approximately 12.5 W/nm for the 21 ps input pulses. The peak power density was increased to 26.9 W/nm by reducing the repetition rate to 28 MHz. This represents an increase in both average and peak power compared to previously reported visible supercontinuum sources from either CW pumped or pulsed-systems.
Chen
Kang Kang
KK
Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK. kkc@orc.soton.ac.uk
Alam
Shaif-Ul
SU
Price
Jonathan H V
JH
Hayes
John R
JR
Lin
Dejiao
D
Malinowski
Andrew
A
Codemard
Christophe
C
Ghosh
Debashri
D
Pal
Mrinmay
M
Bhadra
Shyamal K
SK
Richardson
David J
DJ
D000669:Amplifiers, Electronic; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State