Title :
Mid-IR angled-grating distributed feedback (α-DFB) “W” lasers
Author :
Bartolo, R.E. ; Bewley, W.W. ; Vurgaftman, I. ; Felix, C.L. ; Jurkovic, M.J. ; Meyer, J.R. ; Yang, M.J. ; Lee, H. ; Martinelli, R.U. ; Manfra, M.J. ; Turner, G.W.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
In order to significantly improve the beam quality for wide pump stripes, we have fabricated and tested the first mid-IR angled-grating distributed feedback (a-DFB) lasers. A schematic of the α-DFB geometry is shown alongside the conventional Fabry-Perot configuration. Both the diffraction grating and the gain stripe are tilted at an angle (chosen to be 16") with respect to the facet normals
Keywords :
diffraction gratings; distributed feedback lasers; infrared sources; molecular beam epitaxial growth; semiconductor lasers; α-DFB geometry; Fabry-Perot configuration; beam quality; diffraction grating; distributed feedback; facet normals; gain stripe; mid-IR angled-grating; mid-IR angled-grating distributed feedback lasers; wide pump stripes; Degradation; Diffraction; Distributed feedback devices; Etching; Fabry-Perot; Gratings; Laser feedback; Laser modes; Laser theory; Pump lasers;
Conference_Titel :
Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
Conference_Location :
Rio Grande
Print_ISBN :
0-7803-5947-X
DOI :
10.1109/LEOS.2000.890768
