Stimulated Brillouin scattering inside an optical fiber

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Discussion Overview

The discussion centers around stimulated Brillouin scattering (SBS) within optical fibers, with participants seeking to understand its mechanisms and applications, particularly in relation to four wave mixing (FWM). The conversation includes requests for resources and papers to aid in research and project development.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant requests a clear step-by-step understanding of stimulated Brillouin scattering in optical fibers.
  • Another participant suggests looking for existing research and provides a link to a professional paper on the subject.
  • Several participants share links to additional papers that may help in understanding SBS and its implications.
  • A participant expresses a desire to understand how SBS and FWM work together in their project.
  • There is a discussion about the abbreviation "FWM," with one participant clarifying that it likely refers to "Four Wave Mixing," while another mentions "FWHM" (full width at half maximum) in relation to the referenced papers.
  • One participant specifically asks for papers related to FWM and its phase matching using SBS gain in a chalcogenide chip.

Areas of Agreement / Disagreement

Participants do not reach a consensus, as there are multiple requests for clarification and resources, and the understanding of terms like FWM and FWHM is not uniformly agreed upon.

Contextual Notes

There are limitations in the discussion regarding the specific understanding of terms and concepts, as well as the availability of resources for participants who do not have access to university materials.

Who May Find This Useful

This discussion may be useful for students and researchers interested in nonlinear optical phenomena, particularly those studying 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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