Polarized, 100 kW peak power, high brightness nanosecond lasers based on 3C optical fiber

Stock, M. L.; Liu, Chi‐Hung; Кузнецов, А. В.; Tudury, G.E.; Galvanauskas, Almantas; Sosnowski, T.

doi:10.1117/12.873811

Cited by 5 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, PER of the amplifier has also been improved to ~96% at the maximal operation. The results also indicate that MI can be mitigated by designing fiber with an improved delocalization of HOM, such as chirallycoupled core (CCC) fiber [30], leakage channel fibers [31], all-solid photonic bandgap fibers [32]. …”

Section: Experimental Validationmentioning

confidence: 96%

13 kW monolithic linearly polarized single-mode master oscillator power amplifier and strategies for mitigating mode instabilities

Tao¹,

Ma²,

Wang³

et al. 2015

Photon. Res.

113

View full text Add to dashboard Cite

Abstract:We report on the high power amplification of 1064nm linearlypolarized laser in all-fiber polarization-maintained MOPA, which can operate at output power level of 1.3kW. The main amplifier was pumped with six 915nm laser diodes, and the slope efficiency is 65.3%. The beam quality (M 2 ) was measured to be <1.2 at full power operation. The polarization extinction rate of the fiber amplifier was measured to be above 94% before mode instabilities (MI) sets in, which reduced to about 90% after the onset of MI. Power scaling capability of strategies for suppressing MI is analyzed based on a novel semi-analytical model, the theoretical results of which agree with the experimental results. It shows that mitigating MI by coiling the gain fiber is an effective and practical way in standard double-cladding large mode area fiber, and, by tight coiling of the gain fiber to the radius of 5.5cm, the MI threshold can be increased to 3 times higher than that without coiling or loose coiling. Experimental study has been carried out to verify the idea, which has proved that MI was suppressed successfully in the amplifier by tight coiling.

show abstract

Section: Experimental Validationmentioning

confidence: 96%

13 kW monolithic linearly polarized single-mode master oscillator power amplifier and strategies for mitigating mode instabilities

Tao¹,

Ma²,

Wang³

et al. 2015

Photon. Res.

113

View full text Add to dashboard Cite

show abstract

“…In the manufacturing process the grooves were generated on different sides in the fiber to achieve an optimal suppression of propagating light. In previous experiments, Stock et al demonstrated a 3C ® -fiber amplifier with high peak power of multiple kW, which showed effects of nonlinear polarization instabilities [20]. Please note, that the 3C ® -fiber is a non-PM fiber without additional stress rods.…”

Section: Setup Of the Mopa Systemmentioning

confidence: 99%

“…Please note, that the 3C ® -fiber is a non-PM fiber without additional stress rods. For suppression of polarization effects and a conservation of the polarization stability also in the low power regime, the method of injecting circularly polarized seed light was used in our previous amplifier system [14], [15], [20]. Further research studies also show a stable performance at a linear polarization [21].…”

Section: Setup Of the Mopa Systemmentioning

confidence: 99%

Single-Frequency 336 W Spliceless All-Fiber Amplifier Based on a Chirally-Coupled-Core Fiber for the Next Generation of Gravitational Wave Detectors

Hochheim

Brockmüller

Weßels

et al. 2022

J. Lightwave Technol.

View full text Add to dashboard Cite

Specialty fibers such as chirally-coupled-core fibers show a high potential for further power scaling of singlefrequency fiber amplifiers. For the first time, we demonstrate a spliceless all-fiber amplifier, where all optical components are directly integrated in a single Yb 3+ -doped 3C ® -fiber. Such a spliceless laser design enables a compact and robust architecture using specialty fibers, while maintaining excellent beam properties. At an output power of 336 W operating at 1064 nm, a fundamental mode content of 90.4% at a polarization extinction ratio above 13 dB was measured without any impact of transverse mode instabilities or other parasitic effects. This work emphasizes the field of applications of 3C ® -fibers in high-power laser systems.

show abstract

Picosecond laser with Yb-doped tapered low birefringent double clad fiber

Kozlov,

Mayzel,

Medvedev

et al. 2024

Laser Phys. Lett.

View full text Add to dashboard Cite

In this study, we present results of development fiber picosecond laser by using an active ytterbium tapered double clad optical fiber with mode field diameter of 35 μm and low intrinsic birefringence (1.45 * 10−8 rad m−1). We have demonstrated 1040 nm/50 ps optical source with tunable repetition rate (within range of 1–20 MHz) and an average power of 160 W (peak power 160 kW, 8 μJ per pulse) delivering Gaussian beam with excellent quality (M 2 ∼ 1.11/1.22).

show abstract

Polarized, 100 kW peak power, high brightness nanosecond lasers based on 3C optical fiber

Cited by 5 publications

References 0 publications

13 kW monolithic linearly polarized single-mode master oscillator power amplifier and strategies for mitigating mode instabilities

13 kW monolithic linearly polarized single-mode master oscillator power amplifier and strategies for mitigating mode instabilities

Single-Frequency 336 W Spliceless All-Fiber Amplifier Based on a Chirally-Coupled-Core Fiber for the Next Generation of Gravitational Wave Detectors

Picosecond laser with Yb-doped tapered low birefringent double clad fiber

Contact Info

Product

Resources

About