Understanding the Phase Shift Formula in Stimulated Brillouin Scattering

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Discussion Overview

The discussion revolves around the phase shift formula used in stimulated Brillouin scattering, particularly in relation to phase shifters. Participants are seeking clarification on the factors that contribute to the phase shift, including the role of complex gain and effective length.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant inquires about the exact formula for the phase shift in stimulated Brillouin scattering, expressing a need for clarity on its application in phase shifters.
  • Another participant notes that the topic is broad and asks for prior findings to guide the discussion.
  • A participant mentions that the imaginary part of the complex gain is typically involved and questions whether there are additional coefficients, such as the effective length, that affect this phase shift.
  • There is a reference to deriving the real and imaginary parts of the complex gain from textbooks, with a specific interest in understanding the factors that multiply the imaginary part.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as multiple questions and uncertainties remain regarding the factors influencing the phase shift formula.

Contextual Notes

The discussion highlights potential limitations in understanding the phase shift formula, including the need for specific definitions and the dependence on various parameters that have not been fully clarified.

eahaidar
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Good morning
I need to ask about the exact formula for the phase shift used in stimulated Brillouin scattering especially in the phase shifter thank you
 
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What have you already found? This is a pretty broad topic.
 
UltrafastPED said:
What have you already found? This is a pretty broad topic.
What I know is usually the imaginary part of the complex gain but I really want to know that there is a coefficient other than go which is power over effective area
I need to know if also the effective length is also multiplied to this constant
 
Which books are you using?
 
What I know from any book that you derive from the complex gain the real and imaginary part
The imaginary part is related to the phase but I need to know what factors multipled to this imaginary part??
 

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