Stimulated Brillouin Scattering

Agrawal, Govind P.

doi:10.1016/b978-0-12-045142-5.50015-5

Cited by 22 publications

(6 citation statements)

References 103 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our experiment, a pumping beam excites acoustic phonons in LiNbO 3 and SRS of the pumping beam generates terahertz waves and an idler beams. We calculated the SRS and SBS gains in previous condition, the SBS has 1000 times larger gain than the SRS 12 13 14 15 16 17 . Typically, the SBS gain reaches the steady state within ten lifetimes of the acoustic phonon 18 , within about 1.5 ns in LiNbO 3 17 .…”

mentioning

confidence: 99%

Ultrabright continuously tunable terahertz-wave generation at room temperature

Hayashi

Nawata

Taira

et al. 2014

Sci Rep

201

View full text Add to dashboard Cite

The hottest frequency region in terms of research currently lies in the ‘frequency gap' region between microwaves and infrared: terahertz waves. Although new methods for generating terahertz radiation have been developed, most sources cannot generate high-brightness terahertz beams. Here we demonstrate the generation of ultrabright terahertz waves (brightness ~0.2 GW/sr·cm2, brightness temperature of ~1018 K, peak power of >50 kW) using parametric wavelength conversion in a nonlinear crystal; this is brighter than many specialized sources such as far-infrared free-electron lasers (~1016 K, ~2 kW). We revealed novel parametric wavelength conversion using stimulated Raman scattering in LiNbO3 without stimulated Brillouin scattering using recently-developed microchip laser. Furthermore, nonlinear up-conversion techniques allow the intense terahertz waves to be visualized and their frequency determined. These results are very promising for extending applied research into the terahertz region, and we expect that this source will open up new research fields such as nonlinear optics in the terahertz region.

show abstract

mentioning

confidence: 99%

Ultrabright continuously tunable terahertz-wave generation at room temperature

Hayashi

Nawata

Taira

et al. 2014

Sci Rep

201

View full text Add to dashboard Cite

show abstract

“…Our configuration fully takes advantage of the property that the UMZI responds differently to light at different frequency. Assuming that the UMZI has neither loss nor birefringence, when a lightwave with optical frequency is incident to port A, the normalized transmission at port D is given by (1) where is the refractive index of the optical-fiber arms, is the length difference between the two arms of the UMZI, and is the velocity of light in vacuum. In the case of a given length difference , the transmission spectrum (from port A to port D) of the UMZI is a periodic function of optical frequency , as illustrated in Fig.…”

Section: Operating Principlementioning

confidence: 99%

“…The strong attenuation of sound waves in silica determines the shape of the Brillouin gain spectrum. Actually, the exponential decay of the acoustic waves results in a Lorentzian gain profile [1].…”

Section: Operating Principlementioning

confidence: 99%

“…TIMULATED Brillouin scattering (SBS) is a nonlinear effect resulting from the interaction between intense pump light and acoustic waves in a medium and giving rise to backward propagating frequency-shifted light [1]. The mechanism of SBS is the following: thermally excited acoustic waves generate an index grating that copropagates with the pump at the acoustic velocity in the material.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Brillouin fiber laser pumped by a DFB laser diode

Yong

Thévenaz

Kim

2003

J. Lightwave Technol.

View full text Add to dashboard Cite

Abstract-In this paper, we present a novel Brillouin fiber-ring laser utilizing an unbalanced Mach-Zehnder interferometer (UMZI) as coupling device. The laser is pumped by a distributed-feedback laser diode and shows continuous-wave and single-frequency operation. Frequency-dependent transmission characteristics of the UMZI make it possible for the pump wave to pass through the laser-ring cavity with no resonance effect for stable pump operation, while the Brillouin laser signal still resonates in a high-finesse cavity. Single and multiple longitudinal mode operations are observed according to the relative location between longitudinal modes and Brillouin gain-curve center. A stable single-frequency operation is achieved using a simple stabilizing feedback loop based on dithering and autotracking techniques. Using this simple stabilizing feedback loop, the laser-intensity fluctuation is highly suppressed and remains below 4%. The Brillouin output converted from the pump power of 26.4 mW is about 3.18 mW, and the linewidth is measured to be below 1 kHz.

show abstract

“…Stimulated Brillouin Scattering (SBS) is a nonlinear effect resulting from the interaction between intense pump light and acoustic waves in a medium, giving rise to backward propagating frequency-shifted light [1]. The thermally excited acoustic waves generate an index grating that co-propagates with the pump at the acoustic velocity in the SMF.…”

Section: Introductionmentioning

confidence: 99%

Multiple wavelength Brillouin fiber laser from injection of intense signal light

2007

View full text Add to dashboard Cite

A multiple wavelength Brillouin fiber laser (BFL) is demonstrated using an injection of intense light at 1480 nm. The light generates Raman gain at around 1560 nm to amplify the Brillouin-Rayleigh backscattered light in the medium and allows the generation of multiple lines by self-feedback-seeding effects. Three Stokes are obtained in the BFL with the maximum power of the first Stokes at approximately -6 dBm from the injection of 1480 nm light at 150 mW. The line spacing is measured to be approximately 0.08 nm. There is no significant change in the power of the first Stokes with the injection of 1480 nm light; however the powers of additional Stokes are highest at Brillouin pump of 1560 nm.

show abstract

Stimulated Brillouin Scattering

Cited by 22 publications

References 103 publications

Ultrabright continuously tunable terahertz-wave generation at room temperature

Ultrabright continuously tunable terahertz-wave generation at room temperature

Brillouin fiber laser pumped by a DFB laser diode

Multiple wavelength Brillouin fiber laser from injection of intense signal light

Contact Info

Product

Resources

About