Transverse instabilities are shown to accompany counterpropagation of optical beams through reflection gratings in Kerr media. The instability threshold of continuous waves is analytically derived, and it is shown that the presence of the grating broadens and narrows the stability region of plane waves in focusing and defocusing media, respectively. Furthermore, counterpropagating soliton stability is numerically investigated and compared with the transverse modulation instability analysis, revealing an underlying physical link. (c) 2006 Optical Society of America.
Transverse and soliton instabilities due to counterpropagation through a reflection grating in Kerr media / Carlo, Rizza; Alessandro, Ciattoni; DEL RE, Eugenio; Elia, Palange. - In: OPTICS LETTERS. - ISSN 0146-9592. - STAMPA. - 31:19(2006), pp. 2900-2902. [10.1364/ol.31.002900]
Transverse and soliton instabilities due to counterpropagation through a reflection grating in Kerr media
DEL RE, EUGENIO;
2006
Abstract
Transverse instabilities are shown to accompany counterpropagation of optical beams through reflection gratings in Kerr media. The instability threshold of continuous waves is analytically derived, and it is shown that the presence of the grating broadens and narrows the stability region of plane waves in focusing and defocusing media, respectively. Furthermore, counterpropagating soliton stability is numerically investigated and compared with the transverse modulation instability analysis, revealing an underlying physical link. (c) 2006 Optical Society of America.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
