Calc. Spread Wavelength w/ Monochromatic Light Source

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SUMMARY

The discussion focuses on calculating the spread in wavelength when a monochromatic light source is pulsed by a shutter. The key method involves taking the signal in the time domain and applying a Fourier transform to convert it into the frequency domain, which reveals all the harmonics of the signal. This approach is essential for understanding the effects of pulse duration on wavelength spread. The technique is applicable in various fields, including optics and photonics.

PREREQUISITES
  • Understanding of monochromatic light sources
  • Knowledge of Fourier transform techniques
  • Familiarity with time domain and frequency domain concepts
  • Basic principles of wave optics
NEXT STEPS
  • Study Fourier transform applications in optics
  • Research the effects of pulse duration on wavelength spread
  • Explore harmonic analysis in signal processing
  • Learn about monochromatic light sources and their properties
USEFUL FOR

Optical engineers, physicists, and anyone involved in photonics research or applications requiring wavelength analysis of pulsed light sources.

truth_hunter
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Hello,
here is a poser for you how do you calculate the spread in wavelngth when a monochromatic light source of known wavlength is chopped by a shutter into a known pulse duration?
 
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truth_hunter said:
Hello,
here is a poser for you how do you calculate the spread in wavelngth when a monochromatic light source of known wavlength is chopped by a shutter into a known pulse duration?

Take the signal in the time domain and do a Fourier transform into the frequency domain. You'll obtain all the harmonics of that signal.

Zz.
 

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