Laser emitter of ultrashort pulses with controllable duration for robotics

2021 ◽  
Vol 9 (1) ◽  
pp. 49-58
Author(s):  
Nikolay Gryaznov ◽  
Evgeniy Sosnov ◽  
Dmitry Goryachkin ◽  
Viktor Kuprenyuk
Keyword(s):  
Michelson Interferometer ◽  
Ultrashort Pulses ◽  
Mode Locking ◽  
Laser Resonator ◽  
Resonator Mode ◽  
Original Scheme ◽  
Controllable Duration ◽  
Switching Mode ◽  
Active Resonator ◽  
Laser Emitter

This paper presents the analysis and experimental research of an original scheme of the solid-state laser resonator, capable of emitting subnanosecond radiation pulses with controllable duration. For this purpose, it is proposed to use the controllable Michelson interferometer, containing an electro optical phase modulator as a composed output resonator mirror. In this case, the interferometer provides the active resonator mode locking as well as the fast resonator Q-switching mode for effective generation of the output radiation pulses with variable duration.

A NOVEL SWEPT LASER SOURCE BASED ON COMBINED TUNABLE FILTERS FOR OCT

2011 ◽  
Vol 04 (01) ◽  
pp. 53-58 ◽  
Author(s):  
MINGHUI CHEN ◽  
ZHIHUA DING ◽  
LING WANG ◽  
TONG WU ◽  
YUANHAO TAO
Keyword(s):  
Line Width ◽  
Parallel Implementation ◽  
Mode Locking ◽  
Tunable Filters ◽  
Tunable Filter ◽  
Laser Source ◽  
Laser Resonator ◽  
Fourier Domain ◽  
Tunable Range ◽  
Light Amplification

A novel broad tunable bandwidth and narrow instantaneous line-width linear swept laser source using combined tunable filters working at 1,300 nm center wavelength is proposed. The combined filters consist of a fiber Fabry–Perot tunable filter and a tunable filter based on diffractive grating with scanning polygon mirror. In contrast to traditional method using single tunable filter, the trade-off between bandwidth and instantaneous line-width is alleviated. Parallel implementation of two semiconductor optical amplifiers with different wavelength range is adopted in the laser resonator for broadband light amplification. The Fourier domain mode locking swept laser source with combined tunable filters offers broadband tunable range with narrow instantaneous line-width, which is especially benefiting for high-quality optical frequency domain imaging. The proposed Fourier domain mode locking swept laser source provides a tuning range of 160 nm with instantaneous line-width of about 0.01 nm at sweeping rate of 15 kHz, a finesse of 16,000 is thus achieved.

Active phase mode locking in a cavity with a controllable Michelson interferometer

2019 ◽  
Vol 86 (4) ◽  
pp. 197 ◽  
Author(s):  
N. A. Gryaznov ◽  
E. N. Sosnov ◽  
D. A. Goryachkin ◽  
V. M. Nikitina ◽  
A. Yu. Rodionov
Keyword(s):  
Michelson Interferometer ◽  
Active Phase ◽  
Mode Locking

scholarly journals Simulation of birefringence effects on the dominant transversal laser resonator mode caused by anisotropic crystals

2015 ◽  
Vol 23 (11) ◽  
pp. 13848 ◽  
Author(s):  
Daniel Asoubar ◽  
Site Zhang ◽  
Frank Wyrowski
Keyword(s):  
Laser Resonator ◽  
Resonator Mode

scholarly journals Distributed Kerr Lens Mode-Locked Yb:YAG Thin-Disk Oscillator

2022 ◽  
Vol 2022 ◽  
pp. 1-8
Author(s):  
Jinwei Zhang ◽  
Markus Pӧtzlberger ◽  
Qing Wang ◽  
Jonathan Brons ◽  
Marcus Seidel ◽  
...  
Keyword(s):  
High Power ◽  
Average Power ◽  
Ultrashort Pulses ◽  
Laser Cavity ◽  
Mode Locking ◽  
Gain Medium ◽  
Thin Disk ◽  
Narrow Bandwidth ◽  
Cavity Modes ◽  
High Power Output

Ultrafast laser oscillators are indispensable tools for diverse applications in scientific research and industry. When the phases of the longitudinal laser cavity modes are locked, pulses as short as a few femtoseconds can be generated. As most high-power oscillators are based on narrow-bandwidth materials, the achievable duration for high-power output is usually limited. Here, we present a distributed Kerr lens mode-locked Yb:YAG thin-disk oscillator which generates sub-50 fs pulses with spectral widths far broader than the emission bandwidth of the gain medium at full width at half maximum. Simulations were also carried out, indicating good qualitative agreement with the experimental results. Our proof-of-concept study shows that this new mode-locking technique is pulse energy and average power scalable and applicable to other types of gain media, which may lead to new records in the generation of ultrashort pulses.

scholarly journals Q-switching, mode-locking and tunable operation around 0.9 μm of a neodymium-doped monomode fibre laser

1987 ◽  
Vol 134 (3) ◽  
pp. 183 ◽  
Author(s):  
I.P. Alcock ◽  
A.C. Tropper ◽  
A.I. Ferguson ◽  
D.C. Hanna
Keyword(s):  
Mode Locking ◽  
Fibre Laser ◽  
Q Switching ◽  
Switching Mode
Sign in / Sign up

Export Citation Format

Share Document