Can a CO2 laser be cabled with optical fiber?

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Discussion Overview

The discussion revolves around the feasibility of using optical fiber to cable a CO2 laser, specifically addressing its application in industrial settings and potential use in fusion experiments.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • One participant states that most industrial CO2 lasers utilize optical fibers to transport laser power to cutting heads, highlighting safety features such as a visible laser fiber for fault detection.
  • Another participant suggests that fibers are used to combine power from multiple laser heads, although this is more common with diode lasers.
  • A different viewpoint questions the suitability of optical fibers for fusion applications, citing issues with power levels and dispersion affecting critical timing.
  • One participant believes that lenses and mirrors are primarily used in fusion experiments, possibly indicating a different type of fiber may be employed.
  • Another participant reiterates that fusion experiments typically have ample space for traditional laser setups, reducing the necessity for optical fibers.

Areas of Agreement / Disagreement

Participants express differing views on the use of optical fibers for CO2 lasers and their applicability in fusion experiments, indicating that multiple competing perspectives remain without consensus.

Contextual Notes

There are unresolved assumptions regarding the specific types of optical fibers that may be suitable for high-power applications and the technical limitations posed by dispersion in fusion contexts.

Nivanio
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Hi, i have a question about optical fiber and CO2 laser

Can a CO2 laser be cabled with optical fiber?
Wavelength of 10 micron
 
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yes, that's how most industria lCO2 lasers work. The laser itself is somewhere safe, mecahnically stable and with lots of cooling. A fibre carries the laser power to the cutting head. Often they even have a separate small visible laser fibre wrapped around the main bundle - if there is any fault in the power bundle and the beam leaks out it quickly burns through the optical fibre which is detected and the laser shuts down.

Fibres are also used to bring the power from several lasers heads to one point, although this is more common with diode lasers.
 
Fibres are also used to bring the power from several lasers heads to one point...
I believe that this is how they are trying to focus enough energy to get fussion?
 
Probably not with fibres. They wouldn;t handle the power level sfor interially confined fusion and effects like dispersion would be a problem for the crititcal timing needed.
In a fusion experiment you have lots of space to build miles of lasers and beam lines on fixed optical tables so there is no need to use fibres.
 
Hmm, i think they use lenses and mirrors, and not optical fibers, or maybe a different kind of fiber...
 
mgb_phys said:
In a fusion experiment you have lots of space to build miles of lasers and beam lines on fixed optical tables so there is no need to use fibres.
Or, in the case of the http://en.wikipedia.org/wiki/National_Ignition_Facility" :bugeye:
 
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