OPTOELECTRONIC FEEDBACK-CONTROL FOR INTENSITY NOISE SUPPRESSION IN A CODOPED ERBIUM-YTTERBIUM GLASS-LASER

Authors
DEGERONIMO G TACCHEO S LAPORTA P
Citation
G. Degeronimo et al., OPTOELECTRONIC FEEDBACK-CONTROL FOR INTENSITY NOISE SUPPRESSION IN A CODOPED ERBIUM-YTTERBIUM GLASS-LASER, Electronics Letters, 33(15), 1997, pp. 1336-1337
Citations number
7
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
33
Issue
15
Year of publication
1997
Pages
1336 - 1337
Database
ISI
SICI code
0013-5194(1997)33:15<1336:OFFINS>2.0.ZU;2-O
Abstract
An effective optoelectronic feedback circuit for the suppression of re laxation oscillations in a codoped erbium-ytterbium laser is designed and demonstrated. The presence of an additional dominant pole in the f orward transfer function, due to the energy transfer process inside th e active material, requires a feedback control which introduces a suit able phase shift and provides high gain at the relaxation oscillation frequency. A 30dB reduction in the relaxation oscillation noise peak h as been achieved.