The authors report on the spectral properties of the modes in midinfrared whispering gallery lasers based on InAs. The behavior of the modes excited in cylindrical disk, pillbox, and mesa etched ridge resonators has been studied. The excitation of whispering gallery modes in these structures is found to depend strongly on the contact electrode and its location from the perimeter of the resonator. The authors also report on the threshold current and temperature sensitivity of different resonator and electrode combinations.
Copyright 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, 90 (1), 2007 and may be found at Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, 92 (17), 2008 and may be found at http://link.aip.org/link/?APPLAB/90/172106/1.
