title: Dispersive-grating distributed feedback lasers.
abstract: This paper proposed a novel distributed feedback (DFB) laser by incorporating a dispersive grating, whose coupling strength is dependent on the operating wavelength. Analysis of the laser threshold conditions shows that the proposed structure guarantees single-mode operation due to the inherent threshold gain discrimination on the two otherwise degenerated lasing modes.
authors.affiliation: Department of Electrical and Computer Engineering, McMaster University, 1280 Main Street West, Hamilton, ONL8S 4K1, Canada. xiy2@mcmaster.ca
authors.forename: Yanping
authors.initials: Y
authors.lastname: Xi
authors.forename: Xun
authors.initials: X
authors.lastname: Li
authors.forename: Seyed M
authors.initials: SM
authors.lastname: Sadeghi
authors.forename: Wei-ping
authors.initials: WP
authors.lastname: Huang