Improved high-temperature characteristics in a thickness-tapered 1.3-μm beam-expander integrated ridge-waveguide laser

Improved high-temperature characteristics in a thickness-tapered 1.3-μm beam-expander integrated ridge-waveguide laser

High-temperature performance of a beam-expander (BEX) integrated laser was dramatically improved by reducing the current leakage in both longitudinal and lateral directions. Proton implantation into the BEX region and a reverse-mesa structure were combined to improve the high-temperature characteris...

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Veröffentlicht in:IEEE photonics technology letters 1998-04, Vol.10 (4), p.484-486
Hauptverfasser: Sato, H., Aoki, M., Tsuchiya, T., Komori, M., Taike, A., Takahashi, M., Uomi, K., Tsuji, S.
Format: Artikel
Sprache:eng
Schlagworte:
Epitaxial growth
Fiber lasers
Optical coupling
Optical fibers
Optical losses
Power generation
Protons
Quantum well devices
Temperature
Threshold current
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Beschreibung
Zusammenfassung:High-temperature performance of a beam-expander (BEX) integrated laser was dramatically improved by reducing the current leakage in both longitudinal and lateral directions. Proton implantation into the BEX region and a reverse-mesa structure were combined to improve the high-temperature characteristics. A threshold current of 23.1 mA at 85/spl deg/C and a very high-characteristic temperature T/sub 0/ (25/spl deg/C-85/spl deg/C) of 74 K were achieved. Stable operation for over 3000 h under a 10-mW output power at 70/spl deg/C were confirmed.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.662568