Laterally gain-coupled 1.57µm DFB lasers with chromium surface grating and self-aligned Ti/Pt/Au ohmic contact

Laterally gain-coupled 1.57µm DFB lasers with chromium surface grating and self-aligned Ti/Pt/Au ohmic contact

A simple method for fabricating gain coupled DFB lasers with lateral surface chromium Bragg gratings and self-aligned low capacitance ohmic contacts is reported. These InGaAsP/InP lasers show monomode emission with a sidemode suppression ratio of 40dB. For 243μm long devices, a continuous wave thres...

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Veröffentlicht in:Electronics letters 2000-03, Vol.36 (7), p.1
Hauptverfasser: Schreiner, R, Körbl, M, Gräbeldinger, H, Gentner, J L, Schweizer, H
Format: Artikel
Sprache:eng
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Zusammenfassung:A simple method for fabricating gain coupled DFB lasers with lateral surface chromium Bragg gratings and self-aligned low capacitance ohmic contacts is reported. These InGaAsP/InP lasers show monomode emission with a sidemode suppression ratio of 40dB. For 243μm long devices, a continuous wave threshold current of 17mA was measured at room temperature.
ISSN:0013-5194
1350-911X