A multi quantum well electroabsorption-modulated laser is a semiconductor device employed in long-distance, high-frequency optical-fibre communication. The most advanced devices involve monolithic integration of two functions, electroabsorption modulator and distributed feedback laser, at the chip level. Devices are manufactured by state-of-the-art methods of substrate masking and vapour deposition, but the results of this process are judged empirically. Here scientists have used an ESRF hard X-ray microprobe to characterise the semiconductor material constituents of such a device with unprecedented detail.

Multi quantum well electroabsorption-modulated laser characterised by hard X-ray microprobe

MINO, LORENZO;GIANOLIO, DIEGO;AGOSTINI, Giovanni;PIOVANO, ANDREA;TRUCCATO, Marco;AGOSTINO, Angelo;CAGLIERO, Stefano;LAMBERTI, Carlo
2010-01-01

Abstract

A multi quantum well electroabsorption-modulated laser is a semiconductor device employed in long-distance, high-frequency optical-fibre communication. The most advanced devices involve monolithic integration of two functions, electroabsorption modulator and distributed feedback laser, at the chip level. Devices are manufactured by state-of-the-art methods of substrate masking and vapour deposition, but the results of this process are judged empirically. Here scientists have used an ESRF hard X-ray microprobe to characterise the semiconductor material constituents of such a device with unprecedented detail.
2010
http://www.esrf.eu/news/spotlight/spotlight107/spotlight107/
Selective Area Growth; SAG; MQW; optoelectronics; semiconductor; III-V; epitaxyal growth; laser; modulator; integrated device; microbeam; XRD; photoluminescence; XRF
L. Mino; D. Gianolio; G. Agostini; A. Piovano; M. Truccato; A. Agostino; S. Cagliero; G. Martinez-Criado; S. Codato; C. Lamberti
File in questo prodotto:
File Dimensione Formato  
10SAG_Spotlight107.pdf

Accesso aperto

Tipo di file: POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione 165.16 kB
Formato Adobe PDF
165.16 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/77183
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact