Title :
Dynamic single-transverse-mode properties of varying ridge width DFB laser arrays
Author :
Sarangan, A.M. ; Huang, W.-P. ; Makino, T. ; Li, G.P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
Abstract :
Controlling the lasing wavelength by varying the ridge width is a simple and versatile technique for realizing practical WDM laser arrays. The purpose of this letter is to report the dynamic transverse mode properties of such laser arrays. We show that it is possible to maintain single-mode lasing even for ridges wide enough to support multiple transverse modes. As a result, we were able to increase the tuning range in the array without introducing any detrimental effects on their single-mode properties.
Keywords :
distributed feedback lasers; laser modes; laser tuning; semiconductor laser arrays; DFB laser array; WDM; dynamic single-transverse-mode properties; ridge width; tuning range; wavelength control; Arrayed waveguide gratings; Holography; Laser modes; Laser tuning; Optical arrays; Optical control; Thickness control; Tunable circuits and devices; Waveguide lasers; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
