# FREQUENCY TUNABILITY IN A SMALL OPTICALLY PUMPED FAR INFRARED LASER

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/17056

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 Title: FREQUENCY TUNABILITY IN A SMALL OPTICALLY PUMPED FAR INFRARED LASER Creators: Everitt, Henry; De Lucia, Frank C. Issue Date: 1986 Publisher: Ohio State University Abstract: The tunability of a small, relatively high pressure optically pumped FIR laser has been studied. The lasser cavity for this work was typically a circular waveguide 5 cm in length and 1/4 cm in radius. The laser frequency was tuned by adjustment of the cavity length via a plunger in one end of the waveguide. Pump radiation was coupled in and FIR radiation was emitted through a small iris in the other end of the waveguide cavity. The frequency of the laser was measured by mixing it with the signal from a millimeter/submillimeter spectrometer in as 1.5 K InSb detector. In a very simple system, tunabilities that approach 100 MHz have been observed for the $1.2 mm {^{13}}CH_{3}F$ FIR laser. We believe that substantially wider tunablities can be achieved in an optimized system. Description: Address of Everitt and De Lucia: Department of Physics, Duke University, Durham, NC 27706 Author Institution: URI: http://hdl.handle.net/1811/17056 Other Identifiers: 1986-TA-8