Title :
Tuning a terahertz wire laser
Author_Institution :
Dept. of EECS, MIT, Cambridge, MA, USA
Abstract :
The authors demonstrate a novel tuning mechanism based on the unique feature of an unusual device termed "wire laser", which is defined as a laser whose dimension in the transverse direction w is much smaller than ¿. As such, a large fraction of the mode propagates outside the solid core. Placing a movable object close to the wire laser allows direct manipulation of the evanescent laser field, and consequently the lasing frequency. Based on this mechanism, continuous frequency tuning has been unambiguously demonstrated with single-mode operation free from mode hopping.
Keywords :
laser cavity resonators; laser tuning; solid lasers; spectral line shift; terahertz wave devices; continuous frequency tuning; mode propagation; single mode operation; solid core; terahertz wire laser tuning; Frequency; Instruments; Laser modes; Laser transitions; Laser tuning; Refractive index; Spectroscopy; Temperature; Tunable circuits and devices; Wire;
Conference_Titel :
Photonics Society Winter Topicals Meeting Series (WTM), 2010 IEEE
Conference_Location :
Majorca
Print_ISBN :
978-1-4244-5240-8
Electronic_ISBN :
978-1-4244-5241-5
DOI :
10.1109/PHOTWTM.2010.5421991
