Title :
Highly unidirectional whispering gallery mode lasers
Author :
Wang, Qi Jie ; Yan, Changling ; Yu, Nanfang ; Pflügl, Christian ; Diehl, Laurent ; Capasso, Federico ; Unterhinninghofen, Julia ; Wiersig, Jan ; Edamura, Tadataka ; Yamanishi, Masamichi ; Kan, Hirofumi
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We report elliptical resonators with a wavelength-size notch at the boundary, which supports highly unidirectional emission from whispering gallery modes. Using quantum cascade lasers, a unidirectional in-plane beam divergence of 6 degrees has been demonstrated.
Keywords :
laser cavity resonators; quantum cascade lasers; whispering gallery modes; elliptical resonators; quantum cascade lasers; unidirectional emission; unidirectional in-plane beam divergence; unidirectional whispering gallery mode lasers; wavelength-size notch; Laser beams; Laser modes; Microcavities; Q factor; Quantum cascade lasers; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
