High average power pulsed multi-mode Raman fiber laser in graded index fiber

2018 ◽  
Author(s):  
Jose Enrique Antonio-Lopez ◽  
Rodrigo Amezcua Correa ◽  
Patrick Roumayah ◽  
Joshua D. Bradford ◽  
Martin C. Richardson ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Average Power ◽  
High Average Power ◽  
Raman Fiber Laser ◽  
Graded Index ◽  
Multi Mode

scholarly journals An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power

Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 15
Author(s):  
Mehmetcan Akbulut ◽  
Leonid Kotov ◽  
Kort Wiersma ◽  
Jie Zong ◽  
Maohe Li ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Repetition Rate ◽  
Peak Power ◽  
Figure Of Merit ◽  
Current System ◽  
Glass Fibers ◽  
Average Power ◽  
High Gain ◽  
Short Length ◽  
High Average Power

We report on an eye-safe, transform-limited, millijoule energy, and high average power fiber laser. The high gain and short length of the NP phosphate-glass fibers enable the SBS-free operation with kW level peak power. The output energy is up to 1.3 mJ, and the average power is up to 23 W at an 18 kHz repetition rate with 600 ns pulses (peak power > 2.1 kW). The PER is ≈16 dB and the M2 of the beam is 1.33 × 1.18. The coherent LIDAR Figure Of Merit (FOM) is 174 mJ*sqrt(Hz), which to our knowledge is the highest reported for a fiber laser. We also report 0.75 mJ energy and >3.7 kW peak power with down to 200 ns pulses and up to 1.21 mJ energy with a 3–5 kHz repetition rate operation of the current system.

Energetic and high average power femtosecond fiber laser using chirped- and divided-pulse amplification

CLEO: 2014 ◽  
2014 ◽  
Author(s):  
Yoann Zaouter ◽  
Florent Guichard ◽  
Robert Braunschweig ◽  
Marc Hanna ◽  
Franck Morin ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Average Power ◽  
High Average Power ◽  
Pulse Amplification ◽  
Femtosecond Fiber Laser

High-average power 4 GW pulses with sub-8 optical cycles from a Tm-doped fiber laser driven nonlinear pulse compression stage

2017 ◽  
Author(s):  
Martin Gebhardt ◽  
Christian Gaida ◽  
Fabian Stutzki ◽  
Steffen Hädrich ◽  
Cesar Jauregui ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Pulse Compression ◽  
Average Power ◽  
High Average Power ◽  
Compression Stage

Fiber laser pumped high average power single-cycle terahertz pulse source

2008 ◽  
Vol 93 (14) ◽  
pp. 141107 ◽  
Author(s):  
Matthias C. Hoffmann ◽  
Ka-Lo Yeh ◽  
Harold Y. Hwang ◽  
Thomas S. Sosnowski ◽  
Bradley S. Prall ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Average Power ◽  
High Average Power ◽  
Pulse Source ◽  
Terahertz Pulse ◽  
Single Cycle

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.

High average power and energetic femtosecond fiber laser using chirped- and divided-pulse amplification

2014 ◽  
Author(s):  
Yoann Zaouter ◽  
Florent Guichard ◽  
Marc Hanna ◽  
Franck Morin ◽  
Clemens Hönninger ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Average Power ◽  
High Average Power ◽  
Pulse Amplification ◽  
Femtosecond Fiber Laser
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