Stimulated Brillouin scattering inside an optical fiber

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SUMMARY

This discussion focuses on the mechanisms of Stimulated Brillouin Scattering (SBS) and its relationship with Four Wave Mixing (FWM) in optical fibers. Participants share several academic papers that provide foundational knowledge and insights into these phenomena, including "Stimulated Brillouin Scattering: An Overview of Measurements, System Impairments, and Applications" and "NONLINEAR SCATTERING EFFECTS IN OPTICAL FIBERS." Key terms such as Full Width at Half Maximum (FWHM) are also discussed, emphasizing their relevance in understanding optical communication systems. The conversation highlights the importance of these concepts for projects involving optical fiber technology.

PREREQUISITES
  • Understanding of optical fiber technology
  • Familiarity with nonlinear optics concepts
  • Knowledge of Stimulated Brillouin Scattering (SBS)
  • Basic principles of Four Wave Mixing (FWM)
NEXT STEPS
  • Study the paper "Stimulated Brillouin Scattering: An Overview of Measurements, System Impairments, and Applications"
  • Research "NONLINEAR SCATTERING EFFECTS IN OPTICAL FIBERS" for insights on SBS and FWM
  • Learn about Full Width at Half Maximum (FWHM) and its applications in optical communications
  • Investigate phase matching techniques in Four Wave Mixing (FWM) within optical systems
USEFUL FOR

Researchers, optical engineers, and students focusing on nonlinear optics, particularly those working on projects involving Stimulated Brillouin Scattering and Four Wave Mixing in optical fibers.

eahaidar
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Hello everyone
I need some one once and for all to give me the steps to have a clear step by step idea about the stimulated Brillouin scattering inside an optical fiber please and thank you
 
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hi there

google came up with dozend of hits
what research have you done ?
what specifically did you not understand ?

here's just one professional paper on the subject
http://www.corning.com/docs/corporate/discovery_center/innovation_library/2004/NTRNTR100886_NIST_SOFM_Ruffin.pdf

cheers
Dave
 
Here are two papers that may help:

Stimulated Brillouin Scattering Thresholds in Optical Fibers for Lasers Linewidth Broadened with Noise
http://arxiv.org/ftp/arxiv/papers/1211/1211.2249.pdf

Stimulated Brillouin Scattering: An Overview of Measurements, System Impairments, and Applications
http://www.corning.com/docs/corporate/discovery_center/innovation_library/2004/NTRNTR100886_NIST_SOFM_Ruffin.pdf
 
Last edited by a moderator:
lol Bobby,
that second one of yours I had already posted SNAP :wink:

Dave
 
davenn: Yes, If I wanted to study that subject, the "corning" paper looked like a good place to start.

Great minds think alike.

Bobbywhy
 
davenn said:
hi there
google came up with dozend of hits

what research have you done ?

what specifically did you not understand ?
here's just one professional paper on the subject

http://www.corning.com/docs/corporate/discovery_center/innovation_library/2004/NTRNTR100886_NIST_SOFM_Ruffin.pdf
cheers

Dave
I want to know how exactly does it work in the fiber by using SBS and FWM because once I understand those I can start with my project
 
Last edited by a moderator:
Bobbywhy said:
davenn: Yes, If I wanted to study that subject, the "corning" paper looked like a good place to start.

Great minds think alike.

Bobbywhy
Thank you my friend do u have any papers concerning FWM that would be great also thank you
 
davenn said:
lol Bobby,

that second one of yours I had already posted SNAP :wink:
Dave
Thank you so much one more thing do you have any papers for FWM that would be awesome because I still don't have access to the uni thank yoi
 
eahaidar said:
Thank you my friend do u have any papers concerning FWM that would be great also thank you

Eahaidar,

You have asked about “FWM”. This abbreviation might stand for “Four Wave Mixing”, or something else.

But I guess you meant “FWHM”. This abbreviation stands for “full width at half maximum” and appears in Section Two of the paper “Stimulated Brillouin Scattering: An Overview of Measurements, System Impairments, and Applications” referenced above.

If my guess is correct, you need to learn exactly what the term means, because it is commonly used in many areas of science. One place to begin is Wikipedia:

“Full width at half maximum (FWHM) is an expression of the extent of a function, given by the difference between the two extreme values of the independent variable at which the dependent variable is equal to half of its maximum value.
FWHM is applied to such phenomena as the duration of pulse waveforms and the spectral width of sources used for optical communications...”
http://en.wikipedia.org/wiki/Full_width_at_half_maximum

These two sites also explain “FWHM”:
http://www.noao.edu/wiyn/images/fwhm.html
http://ned.ipac.caltech.edu/level5/Leo/Stats2_3.html


Finally, here’s another paper that gives an excellent overview of your topic:

"NONLINEAR SCATTERING EFFECTS IN OPTICAL FIBERS
S. P. Singh, R. Gangwar, and N. Singh
Department of Electronics and Communication
University of Allahabad
Allahabad-211002, India
Abstract—The nonlinear scattering effects in optical fiber occur due
to inelastic-scattering of a photon to a lower energy photon. This
paper describes stimulated Brillouin scattering and stimulated Raman
scattering processes. Their thresholds, reduction in power penalty and
applications along with comparative study of these effects are also
presented."
http://jpier.org/PIER/pier74/23.07051102.Singh.GS.pdf

Cheers, Bobbywhy
 
  • #10
Hey bobby
Thank you for the reply
I am asking about four wave mixing and the reason that I will work on fixing the phase matching of FWM using gain of SBS inside a chalcogenide chip that so if you have papers about then that would be great anything would help thank you again
 

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