Detection Methods: Heterodyne, Differential, Normal & Homodyne

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    Detection Method
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Discussion Overview

The discussion revolves around the differences between various types of detection methods: heterodyne, differential, normal, and homodyne. Participants explore their usage and specific requirements, particularly focusing on timing detection in differential detection and the distinctions in terminology between optical and electrical forms of homodyne and heterodyne detection.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant queries the differences and usage of heterodyne, differential, normal, and homodyne detection methods.
  • Another participant asserts that the inquiry does not pertain to a homework assignment.
  • A different participant suggests looking up information on Wikipedia or Google, indicating that textbooks also provide useful explanations.
  • A participant clarifies their concern about the timing detection requirements of differential detection compared to heterodyne detection, noting the need to capture two cycles of change for heterodyne signals.
  • There is mention of a perceived difference in terminology between optical and electrical homodyne and heterodyne detection, prompting a request for clarification on this distinction.

Areas of Agreement / Disagreement

Participants do not reach a consensus, as there are multiple competing views regarding the definitions and applications of the detection methods, and the discussion remains unresolved.

Contextual Notes

The discussion lacks detailed definitions and specific examples of each detection method, and there are unresolved questions regarding the timing requirements and terminology differences.

watertreader
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Hi,

Just a query...

what is the differences between this types of detection and their usage?
a) heterodyne
b) differential
c) normal
d) homodyne?
 
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We don't do homework assignments.
 
Just go to Wikipedia or Google and look them up.

eg
http://en.wikipedia.org/wiki/Homodyne

Even your textbook from school will have nice diagrams and a carefully written explanation.
 
not a homework assignment...

actually i am more concerned with the timing detection requirement of differential detection... for a heterodyne detection, we need to capture 2 cycle of change to determine the heterodyne signal..what about differential?

also for homodyne and heterodyne detection... heard there is a difference in the terminology between optical and electrical homodyne/heterodyne..what/why the diff?
 

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