Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloReliable polarization control of VCSELs through monolithically integrated surface gratings: a comparative theoretical and experimental study
Anno di pubblicazione2005
FormatoElettronico
Autore/iDebernardi, P (Debernardi, P); Ostermann, JM (Ostermann, JM); Feneberg, M (Feneberg, M); Jalics, C (Jalics, C); Michalzik, R (Michalzik, R)
Affiliazioni autori1. Politecn Torino, CNR, IEIIT, I-10129 Turin, Italy 2. Univ Ulm, Optoelect Dept, D-89069 Ulm, Germany
Autori CNR e affiliazioni
  • PIERLUIGI DEBERNARDI VQR
Lingua/e-
AbstractVertical cavity surface-emitting lasers (VCSELs) with a well-defined and predictable polarization of the emitted light are sought for a number of applications. In this paper, we show that one can define and stabilize the polarization of single- and multimode oxide-confined VCSELs with a monolithically integrated dielectric surface grating. In recent years, we have developed a three-dimensional, fully vectorial model for VCSELs, which proved to nicely reproduce the experimental results of quite complex structures, such as noncircular devices and phase-coupled VCSEL arrays. This software allows for the first time to analyze the effects of a dielectric grating in the output facet cap layer and its capability to fix the polarization of the emitted light. It is here employed as a design tool, yielding excellent agreement with the experimental data. Since the simulations predict the polarization behavior to be sensitively dependent on the grating parameters, hundreds of VCSELs with 99 different parameter sets, two grating orientations and active diameters of 4 and 7 mum have been analyzed. Even VCSELs with eight or more coexisting modes turned out to be linearly, polarized with an orthogonal polarization suppression ratio in excess of 15 dB. Theoretical and experimental emission far-fields are compared, and it is shown that diffraction side lobes can be prevented with properly chosen grating parameters which simultaneously ensure full polarization stability.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da107
Pagine a116
Pagine totali-
RivistaIEEE journal of selected topics in quantum electronics
Attiva dal 1995
Editore: IEEE, - New York, NY
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 1077-260X
Titolo chiave: IEEE journal of selected topics in quantum electronics
Titolo proprio: IEEE journal of selected topics in quantum electronics
Titolo abbreviato: IEEE j. sel. top. quantum electron.
Titolo alternativo: Selected topics in quantum electronics
Numero volume della rivista11
Fascicolo della rivista-
DOI10.1109/JSTQE.2004.841712
Verificato da referee-
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000227014900012)
Parole chiaveVCSEL, polarization control
Link (URL, URI)http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=1395895&contentType=Journals+%26+Magazines&searchField%3DSearch_All%26queryText%3D10.1109%2FJSTQE.2004.841712
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR
    Progetti Europei-
    Allegati
    • Vertical cavity surface-emitting lasers (VCSELs) with a well-defined and predictable polarization of the emitted light are sought for a number of applications. In this paper, we show that one can define and stabilize the polarization of single- and multimode oxide-confined VCSELs with a monolithically integrated dielectric surface grating. In recent years, we have developed a three-dimensional, fully vectorial model for VCSELs, which proved to nicely reproduce the experimental results of quite complex structures, such as noncircular devices and phase-coupled VCSEL arrays. This software allows for the first time to analyze the effects of a dielectric grating in the output facet cap layer and its capability to fix the polarization of the emitted light. It is here employed as a design tool, yielding excellent agreement with the experimental data. Since the simulations predict the polarization behavior to be sensitively dependent on the grating parameters, hundreds of VCSELs with 99 different parameter sets, two grating orientations and active diameters of 4 and 7 mum have been analyzed. Even VCSELs with eight or more coexisting modes turned out to be linearly, polarized with an orthogonal polarization suppression ratio in excess of 15 dB. Theoretical and experimental emission far-fields are compared, and it is shown that diffraction side lobes can be prevented with properly chosen grating parameters which simultaneously ensure full polarization stability.

    Dati storici
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    Rivista ISIIEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS [11536J0]