A giant controllable gap in the optical spectrum of a semiconductor laser subject to intense feedback with rotated polarization

Autor:	Gross, Noam, Shotan, Zav, Galfsky, Tal, Khaykovich, Lev
Rok vydání:	2007
Předmět:	Physics - Optics
Druh dokumentu:	Working Paper
Popis:	A semiconductor laser subject to delayed optical feedback is investigated in the limit of extremely intense feedback power. In a range of feedback polarization rotation angles the emission spectra of the laser reveal a giant gap with width of more than a terahertz. The position of the gap and its width are shown to be regulated by means of feedback polarization rotation angle. We demonstrate that a theoretical approach, based on carrier density grating induced potential, explains our experimental results. Comment: 4 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0710.1704 Zobrazit plný text záznamu View this record from Arxiv