Subwavelength Grating-Mirror VCSEL With a Thin Oxide Gap

Subwavelength Grating-Mirror VCSEL With a Thin Oxide Gap

A new vertical-cavity surface-emitting laser (VCSEL) structure based on a subwavelength grating mirror and a thin oxide gap is suggested and numerically investigated. The structure is shown to exhibit similar threshold gain, suppression of higher order transverse modes, and polarization stability as...

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Veröffentlicht in:IEEE photonics technology letters 2008-01, Vol.20 (2), p.105-107
Hauptverfasser: Il-Sung Chung, Mork, J., Gilet, P., Chelnokov, A.
Format: Artikel
Sprache:eng
Schlagworte:
Apertures
Distributed Bragg reflectors
Gain
Grating
Gratings
high power
Laser modes
Oxidation
Oxides
Photonics
Polarization
Power generation
single mode
Stability
Surface emitting lasers
Thresholds
Vertical cavity surface emission lasers
Vertical cavity surface emitting lasers
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Beschreibung
Zusammenfassung:A new vertical-cavity surface-emitting laser (VCSEL) structure based on a subwavelength grating mirror and a thin oxide gap is suggested and numerically investigated. The structure is shown to exhibit similar threshold gain, suppression of higher order transverse modes, and polarization stability as a grating-mirror VCSEL reported in the literature based on a thick air gap. The thin oxide gap structure has a number of advantages including easier fabrication, better mechanical stability, and very strong single-mode properties.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2007.912689