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Assessment of the Emission Spectrum from a White Super-Luminescent Diode by the Use of a Fourier Transform Spectrometer
Umeå University, Faculty of Science and Technology, Department of Physics.
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

In this experiment, we use a Fourier transform spectrometer to measure the emission spectrum of a white superluminescent diode. The spectrometer is based on a Michelson interferometer with a super luminescent diode as a light source and a stepper-motordriven mirror that reflects light on both sides. Another interferometer, with a HeNe laser as a light source, sharing the movable mirror is used for a calibration of the frequency scale. When characterized with a green HeNe laser, the spectrometer shows a spectral resolution of 0.4 nm. In our experiments, we found that the superluminescent diode emits in the blue and yellow parts of the spectrum, and that the emission bandwidths are 18.1(4) nm and 143.1(4) nm respectively.

Place, publisher, year, edition, pages
2016.
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:umu:diva-122027OAI: oai:DiVA.org:umu-122027DiVA: diva2:936589
Subject / course
Fysik C - Examensarbete
Available from: 2016-06-14 Created: 2016-06-14 Last updated: 2016-06-14Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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