Beam Divergence - Revision history

Smaldonado: Added image caption

2015-12-05T10:58:43Z

Added image caption

← Older revision		Revision as of 10:58, 5 December 2015
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	[[File:BeamDivergenceHalfAngle.png\|frame\|right]]		[[File:BeamDivergenceHalfAngle.png\|frame\|right\|Beam divergence is inversely related to power density]]

	The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the emitted light at the aperture (when a source refers to “full angle,” that is simply twice the “half angle”). This means that power/area density falls off with the square of distance. For long distance use of lasers, beam divergence becomes an important factor, because the energy emitted by the laser will be spread over a fairly large area, so power considerations are key.		The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the emitted light at the aperture (when a source refers to “full angle,” that is simply twice the “half angle”). This means that power/area density falls off with the square of distance. For long distance use of lasers, beam divergence becomes an important factor, because the energy emitted by the laser will be spread over a fairly large area, so power considerations are key.

	[[Category:Optical Communications]]		[[Category:Optical Communications]]

Smaldonado: Added image

2015-12-05T10:54:04Z

Added image

← Older revision		Revision as of 10:54, 5 December 2015
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			[[File:BeamDivergenceHalfAngle.png\|frame\|right]]

	The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the emitted light at the aperture (when a source refers to “full angle,” that is simply twice the “half angle”). This means that power/area density falls off with the square of distance. For long distance use of lasers, beam divergence becomes an important factor, because the energy emitted by the laser will be spread over a fairly large area, so power considerations are key.		The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the emitted light at the aperture (when a source refers to “full angle,” that is simply twice the “half angle”). This means that power/area density falls off with the square of distance. For long distance use of lasers, beam divergence becomes an important factor, because the energy emitted by the laser will be spread over a fairly large area, so power considerations are key.

	[[Category:Optical Communications]]		[[Category:Optical Communications]]

Smaldonado: Added to Optical Communications category

2015-08-11T06:09:18Z

Added to Optical Communications category

← Older revision		Revision as of 06:09, 11 August 2015
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	The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the emitted light at the aperture (when a source refers to “full angle,” that is simply twice the “half angle”). This means that power/area density falls off with the square of distance. For long distance use of lasers, beam divergence becomes an important factor, because the energy emitted by the laser will be spread over a fairly large area, so power considerations are key.		The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the emitted light at the aperture (when a source refers to “full angle,” that is simply twice the “half angle”). This means that power/area density falls off with the square of distance. For long distance use of lasers, beam divergence becomes an important factor, because the energy emitted by the laser will be spread over a fairly large area, so power considerations are key.

			[[Category:Optical Communications]]

Ehillstrom: Created page with "The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the e..."

2015-07-30T04:32:01Z

Created page with "The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the e..."

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The path of light emitted from an aperture can be approximated by a cone. The divergence is usually specified as the half-angle of the two-dimensional triangle formed by the emitted light at the aperture (when a source refers to “full angle,” that is simply twice the “half angle”). This means that power/area density falls off with the square of distance. For long distance use of lasers, beam divergence becomes an important factor, because the energy emitted by the laser will be spread over a fairly large area, so power considerations are key.