High-power SRS lasers – coherent summators (the way it was)

Grasiuk, A. Z.; Zubarev, I G; Efimkov, V F; Смирнов, В. Г.

doi:10.1070/qe2012v042n12abeh015060

Cited by 12 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3, high-pressure molecular gases (D2 or CH4 for ~ 1.5 µm Stokes wavelength; N2 for ~ 1.4 µm Stokes wavelength) can be used as efficient Raman gain media for high-fluence operations. It is also possible to use liquid N2, as kilojoule, µs-duration Stokes output was previously reported [17]. Other potential laser technologies include Cr:YAG and Er,Yb-doped glass lasers.…”

Section: Direct Optical Pumpingmentioning

confidence: 90%

Optical pumping for high-power ultrashort LWIR gas lasers

Chen,

Hasson,

Gordon

et al. 2024

High-Power Laser Ablation VIII

View full text Add to dashboard Cite

Long-wave infrared (LWIR) lasers based on high-voltage pulsed discharges in the high-pressure CO2 gas have reached multi-TW peak power. As optical pumping appears to be a more viable pathway toward ultrahigh power and high repetition rate, we investigated multiple apparatus including direct and indirect optical pumping. Indirect optical pumping through stimulated Raman scattering in N2 gas could be efficient, and is relatively insensitive to the pump wavelength. On the other hand, laser technologies for direct optical pumping have higher maturity levels at wavelengths of ~ 1.4 µm and ~ 2.0 µm among multiple excitation bands in the mid-IR wavelength.

show abstract

Section: Direct Optical Pumpingmentioning

confidence: 90%

Optical pumping for high-power ultrashort LWIR gas lasers

Chen,

Hasson,

Gordon

et al. 2024

High-Power Laser Ablation VIII

View full text Add to dashboard Cite

show abstract

“…The underpinning power scaling concept is based on so‐called Raman beam combination (RBC), first explored in the context of scaling the brightness of exploding iodine lasers in Russia during the 1960s and, rather impressively, only within a few years of the first observations of stimulated Raman scattering (SRS) . Multiple input beams were coupled to a single output beam via the SRS interaction in a cryogenic liquid medium to generate up 2.5 kJ in pulses of duration 15 µs.…”

Section: Introductionmentioning

confidence: 99%

Diamond‐based concept for combining beams at very high average powers

McKay

Spence

Coutts

et al. 2017

Laser & Photonics Reviews

View full text Add to dashboard Cite

Ever since the laser's invention, there has been great interest in increasing beam output power without detriment to its coherence. Despite great advances having been obtained through the use of a diverse range of approaches, steady‐state beam powers above ten kilowatts remain a significant challenge for solid‐state lasers due to the heightened impact of detrimental nonlinear effects such as thermal lensing. Multiplexing several lasers using beam combination represents a method for surpassing the power barriers of single lasers. Here we propose and demonstrate a novel approach to beam combination and power scaling based on Raman conversion in diamond. Power from multiple non‐collinear pump beams is efficiently transferred onto a single Stokes beam in a single‐pass amplifier. Using three mutually‐independent nanosecond pulsed beams from a free‐running‐linewidth 1064 nm laser, 69% of the total peak pump power of 6.7 kW was transferred onto a TEM00 Stokes seed pulse at 1240 nm in a 9.5 mm long diamond crystal. Compared to other beam combination techniques, diamond beam combination has advantages of relaxed constraints on pump beam mutual coherence, while enabling narrowband output. Thermal considerations for extending from low duty‐cycle to continuous wave operation and higher power levels are discussed.

show abstract

Mono-module Disk Laser

Аполлонов

2014

Springer Series in Optical Sciences

View full text Add to dashboard Cite

High-power SRS lasers – coherent summators (the way it was)

Cited by 12 publications

References 5 publications

Optical pumping for high-power ultrashort LWIR gas lasers

Optical pumping for high-power ultrashort LWIR gas lasers

Diamond‐based concept for combining beams at very high average powers

Mono-module Disk Laser

Contact Info

Product

Resources

About