2012 BFY Abstract Detail Page

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Abstract Title: W14 - External cavity diode lasers and iodine spectroscopy
Abstract: External cavity diode lasers (ECDLs) are common tools in undergraduate and graduate laboratories. One can tune and stabilize inexpensive laser diodes (as will be done here) to be used in contexts such as high precision optical metrology and spectroscopy experiments. Their relative ease-of-use, potential for customization, low price, and large choice of wavelengths make them accessible and interesting parts of undergraduate advanced laboratories.

The apparatus in this workshop will comprise components of a home-built external cavity diode laser system: machined mounts, temperature controller, precision current source, pzt driver for fine tuning, etc. Participants will have the opportunity to align and tune an ECDL at 633 nm. They will also scan the laser frequency for simple absorption spectroscopy in iodine vapor. Versions of this workshop have been offered at the AAPT summer meeting in Portland in 2010 and at an ALPhA Immersion at Bethel University in 2011. Participants will be offered schematics and a parts list for a home-built ECDL system based on a NIST design.
Abstract Type: Workshop

Workshop Documents

Workshop Document: Download the Workshop Document
Workshop Document (2): Download the Workshop Document (2)
Workshop Document (3): Download the Workshop Document (3)
Workshop Document (4): Download the Workshop Document (4)

Author/Organizer Information

Primary Contact: Chad Hoyt
Bethel University