Continuous-wave operation of distributed feedback interband cascade lasers

• DOI: 10.1063/1.1738184
• Publication Date: 2004-04-26T22:12:31Z
• Authors: Rui Q. Yang; C. J. Hill; B. H. Yang; C. M. Wong; R. E. Muller; P. M. Echternach
• Keywords: Continuous wave; Longitudinal mode

Continuous-wave distributed feedback interband cascade lasers operating near 3.3 μm are reported. Single longitudinal mode emission is achieved with side suppression ratio greater than 30 dB at temperatures up to 175 K. A clear Bragg stop band in the laser spectrum indicates a dominant index coupling first-order grating. Detailed characteristics of these discussed.