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Titolo:
CONTROL OF LIGHT-OUTPUT POLARIZATION FOR SURFACE-EMITTING-LASER TYPE DEVICE BY STRAINED ACTIVE LAYER GROWN ON MISORIENTED SUBSTRATE
Autore:
NUMAI T; KURIHARA K; KUHN K; KOSAKA H; OGURA I; KAJITA M; SAITO H; KASAHARA K;
Indirizzi:
HOKKAIDO UNIV,ELECTR SCI RES INST,KITA KU,NISHI 6,KITA 12 SAPPORO HOKKAIDO 060 JAPAN NEC CORP LTD,OPTOELECTR RES LABS TSUKUBA IBARAKI 305 JAPAN
Titolo Testata:
IEEE journal of quantum electronics
fascicolo: 4, volume: 31, anno: 1995,
pagine: 636 - 642
SICI:
0018-9197(1995)31:4<636:COLPFS>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSMISSION ELECTROPHOTONIC DEVICE; VERTICAL-CAVITY; OPERATION; THRESHOLD; STRESS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
T. Numai et al., "CONTROL OF LIGHT-OUTPUT POLARIZATION FOR SURFACE-EMITTING-LASER TYPE DEVICE BY STRAINED ACTIVE LAYER GROWN ON MISORIENTED SUBSTRATE", IEEE journal of quantum electronics, 31(4), 1995, pp. 636-642

Abstract

We propose and demonstrate control of light-output polarization for surface-emitting laser-type devices by using strained quantum-well active layers grown on a misoriented substrate. This structure has slightly asymmetric strain tenser elements on the surface plane. Due to orbital-strain interaction, the valence band structures change and the optical transition matrix element depends on the polarization of the light. Here, theoretical analysis and experimental results on the directionof misorientation are described, and it is shown that how the polarization of the light output is related to asymmetry in strain tensors. For the devices, which have In0.2Ga0.8As active layers grown on a 2-degree-off-(100) GaAs substrate toward (111)B, the light-output is polarized in [0(1) over bar1$] with the reproducibility of as high as 88%. This highly controlled polarization is probably due to the combination of converse piezoelectric effect and asymmetry in the lattice mismatchon the surface caused by misorientation.

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Documento generato il 02/07/20 alle ore 17:51:51