Tuneable Diode Laser Absorption Spectroscopy with Optical Fiber : Noise Analysis and Noise Reduction
A prototype of a fiber based absorptionspectroscopy instrument is built. A single mode fiber pigtailDistributed Feedback laser (DFB) is used to scan a known$mbox{NH}_3$ absorption line near $1512nm$ ($6614cm^{-1}$). $2mm$diameter InGaAs PIN photodiodes are used to convert the light signalto electric...
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| Format: | Others |
| Language: | English |
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Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon
2006
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| Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13089 |