Vertical-cavity saturable-absorber intensity modulator.
Opt Lett
; 28(1): 43-5, 2003 Jan 01.
Article
em En
| MEDLINE
| ID: mdl-12656530
ABSTRACT
We propose and demonstrate a reflection-type optical modulator, with surface-normal architecture, that exploits the optical saturation of absorption in semiconductor quantum wells. The modulation section of the modulator, which is composed of quantum wells placed within a Fabry-Perot cavity, is optically controlled by an intensity-modulated beam generated by an in-plane laser integrated monolithically on the same wafer and grown in a single epitaxial step. The modulation section and the in-plane laser share the same medium; therefore, efficient coupling between the control beam and the signal beam is achieved. The device was successfully used for active mode locking of an erbium-doped fiber laser.
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MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2003
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Article