Longitudinal scaling of VECSEL output power maintaining narrow linewidth

2020 ◽  
Author(s):  
Yushi Kaneda ◽  
Dustin Mitten ◽  
Michael Hart ◽  
Stephen H. Warner ◽  
Jussi-Pekka Penttinen ◽  
...  
Keyword(s):  
Output Power ◽  
Narrow Linewidth

scholarly journals Monolithic high-average-power linearly polarized nanosecond pulsed fiber laser with near-diffraction-limited beam quality

2018 ◽  
Vol 6 ◽  
Author(s):  
Long Huang ◽  
Pengfei Ma ◽  
Daren Meng ◽  
Lei Li ◽  
Rumao Tao ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Linear Polarization ◽  
Beam Quality ◽  
Average Power ◽  
Narrow Linewidth ◽  
High Average Power ◽  
Maximal Output Power ◽  
Maximal Output ◽  
Pulsed Fiber Laser

An all-fiberized high-average-power narrow linewidth ns pulsed laser with linear polarization is demonstrated. The laser system utilizes a typical master oscillator power amplifier (MOPA) configuration. The stimulated Brillouin scattering (SBS) is effectively suppressed due to the short fiber length and large mode area in the main amplifier, combined with the narrow pulse duration smaller than the phonon lifetime of SBS effect. A maximal output power of 466 W is obtained with a narrow linewidth of ${\sim}$203.6 MHz, and the corresponding slope efficiency is ${\sim}$80.3%. The pulse duration is condensed to be ${\sim}$4 ns after the amplification, corresponding to the peak power of 8.8 kW and the pulse energy of $46.6~\unicode[STIX]{x03BC}\text{J}$. Near-diffraction-limited beam quality with an $M^{2}$ factor of 1.32 is obtained at the output power of 442 W and the mode instability (MI) is observed at the maximal output power. To the best of our knowledge, this is the highest average output power of the all-fiberized narrow linewidth ns pulsed fiber laser with linear polarization and high beam quality, which is a promising source for the nonlinear frequency conversion, laser lidar, and so on.

scholarly journals A Narrow-Linewidth Linearly Polarized 1018-nm Fiber Source for Pumping Diamond Raman Laser

2021 ◽  
Vol 9 ◽  
Author(s):  
Xuezong Yang ◽  
Zhenxu Bai ◽  
Huawei Jiang ◽  
Richard P. Mildren ◽  
Yan Feng
Keyword(s):  
Output Power ◽  
Longitudinal Mode ◽  
Raman Laser ◽  
Gain Coefficient ◽  
Narrow Linewidth ◽  
Resonator Structure ◽  
Linearly Polarized ◽  
Promising Application ◽  
Guide Star ◽  
The Impact

A 7.8-GHz linewidth ytterbium-doped fiber (YDF) laser with an output power of 75 W at 1,018 nm is demonstrated based on narrow-bandwidth fiber Bragg gratings. Effective suppression of spectral broadening and amplified spontaneous emission is achieved by optimizing the resonator structure and active fiber parameters. An 1,178-nm diamond Raman output pumped by this narrow-linewidth 1,018 nm source is addressed in this study, which shows a promising application of generating the sodium guide star laser at 589 nm. A single-longitudinal-mode Stokes with an output power of 0.6 W is obtained using this multimode 1,018 nm laser at the pump power of 13 W. The impact of pump spectral linewidth on the effective Raman gain coefficient is analyzed, and the laser threshold of the diamond Stokes resonator increases with the broadening of the pump linewidth.

550-mW Output Power From a Narrow Linewidth All-Phosphate Fiber Laser

2013 ◽  
Vol 31 (5) ◽  
pp. 756-760 ◽  
Author(s):  
Peter Hofmann ◽  
Christian Voigtlander ◽  
Stefan Nolte ◽  
N. Peyghambarian ◽  
Axel Schulzgen
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Narrow Linewidth

Narrow linewidth ( 16dBm) external cavity lasers for coherent optical communications

2018 ◽  
Author(s):  
Giovanni B. de Farias ◽  
Hening A. de Andrade ◽  
Leandro T. Zanvettor ◽  
Luis H. H. de Carvalho ◽  
Maria Chiara Ubaldi ◽  
...  
Keyword(s):  
Output Power ◽  
Optical Communications ◽  
External Cavity ◽  
Narrow Linewidth ◽  
High Output Power ◽  
External Cavity Lasers ◽  
Cavity Lasers ◽  
High Output

Cascaded gain fibers for increasing output power and the stimulated Brillouin scattering threshold of narrow linewidth fiber Raman amplifiers

2016 ◽  
Vol 55 (15) ◽  
pp. 4066 ◽  
Author(s):  
J. A. Nagel ◽  
V. Temyanko ◽  
J. T. Dobler ◽  
M. E. Likhachev ◽  
M. M. Bubnov ◽  
...  
Keyword(s):  
Output Power ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Narrow Linewidth ◽  
Raman Amplifiers ◽  
Stimulated Brillouin
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