Open AccessHigh power microsecond fiber laser at 1.5 μm
Author(s) -
Svitlana Pavlova,
Mustafa Yağcı,
S. Koray Eken,
Ersan Tunckol,
Ihor Pavlov
Publication year - 2020
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.377751
Subject(s) - microsecond , optics , materials science , fiber laser , laser , pulse duration , laser beam quality , amplified spontaneous emission , power (physics) , pulse (music) , optical fiber , pulse width modulation , fiber , optoelectronics , physics , laser beams , detector , quantum mechanics , composite material
In this work, we demonstrate a single frequency, high power fiber-laser system, operating at 1550 nm, generating controllable rectangular-shape μs pulses. In order to control the amplified spontaneous emission content, and overcome the undesirable pulse steepening during the amplification, a new method with two seed sources operating at 1550 nm and 1560 nm are used in this system. The output power is about 35 W in CW mode, and the peak power is around 32 W in the pulsed mode. The repetition rate of the system is tunable between 50 Hz to 10 kHz, and the pulse duration is adjustable from 10 μs to 100 μs, with all on the fly electronically configurable design. The system demonstrates excellent long and short time stability, as well as spectral and spatial beam quality.