High-speed wavelength-swept semiconductor laser with a polygon-scanner-based wavelength filter.
Opt Lett
; 28(20): 1981-3, 2003 Oct 15.
Article
em En
| MEDLINE
| ID: mdl-14587796
ABSTRACT
Ultrahigh-speed tuning of an extended-cavity semiconductor laser is demonstrated. The laser resonator comprises a unidirectional fiber-optic ring, a semiconductor optical amplifier as the gain medium, and a novel scanning filter based on a polygonal scanner. Variable tuning rates up to 1150 nm/ms (15.7-kHz repetition frequency) are demonstrated over a 70-nm wavelength span centered at 1.32 microm. This tuning rate is more than an order of magnitude faster than previously demonstrated and is facilitated in part by self-frequency shifting in the semiconductor optical amplifier. The instantaneous linewidth of the source is <0.1 nm for 9-mW cw output power and a low spontaneous-emission background of -80 dB.
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Semicondutores
/
Lasers
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Estados Unidos