Pattern competition in a high-power CO2-laser due to optogalvanic modulation of the pump profile
Anno: 1994
Autori: Arecchi F.T., Boccaletti S., Ciofini M., Meucci R.
Affiliazione autori: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy;
Department of Physics, University of Firenze, 50125 Firenze, Italy
Abstract: Experimental evidence of periodic alternation of different transverse modes in a high-power CO, laser is interpreted in terms of local cooling of the discharge column, which corresponds to the maximum emitted intensity. Optogalvanic coupling between emitted intensity and local discharge impedance values yields a transverse redistribution of discharge current and, hence, of laser gain. Thus, besides the fast feedback provided by the cavity, with high-power lasers one must account also for a slow global feedback because of the optogalvanic effects.
Giornale/Rivista: OPTICAL ENGINEERING
Volume: 33 (1) Da Pagina: 97 A: 101
Parole chiavi: INFRARED TECHNOLOGY; TRANSVERSE EFFECTS IN OPTICS; MODE COMPETITION IN LASERS; TRANSVERSE OPTICAL PATTERN FORMATION; PERIODIC ALTERNATIONDOI: 10.1117/12.151552Citazioni: 2dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-05Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui