Light manipulation for all-fiber devices with VCSEL and graphene-based metasurface.
Opt Express
; 31(18): 29627-29638, 2023 Aug 28.
Article
em En
| MEDLINE
| ID: mdl-37710759
ABSTRACT
Light manipulation for all-fiber devices has played a vital role in controllable photonic devices. A graphene-based metasurface is proposed to realize light manipulation. A row of VCSEL-based optical engines with low crosstalk is used as the control light to modulate the signal transmitted in the microstructured fiber. In this configuration, the proposed device can work independently of the wavelength division multiplexing (WDM) system. With an insertion loss of only 0.28â
dB, evanescent wave coupling to graphene layers is polarisation-insensitive. The device could be effectively manipulated for a few days (not less than 72 hours), which possesses the capacity to dynamically modulate the signal light with both low-temperature sensitivity and low-wavelength sensitivity. The 35â
nm wavelength interval results in a change of only about 0.1â
dB in the output light intensity of the microstructured fiber when the wavelength changes from 1530â
nm to 1565â
nm. Moreover, the modulation depth is approximately 2â
dB when the modulating voltage is 2.2â
V, which may open avenues for channel detection techniques and have deep implications in top tuning applications.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article