Blue-green laser diodes

The current status, as well as some key issues related to the growth and characterization of II-VI blue/green laser diodes are reviewed. The Zn(Se,Te) graded contact to p-ZnSe is effective in supporting the room-temperature CW operation of green (508 nm) laser diodes while device lifetimes are curre...

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Bibliographic Details
Main Authors: Gunshor, R.L., Han, J., Nurmikko, A.V.
Format: Conference Proceeding
Language:English
Subjects:
Diode lasers
Electrical resistance measurement
Laser modes
Optical films
Plasma temperature
Substrates
Surface emitting lasers
Temperature control
Vertical cavity surface emitting lasers
Zinc compounds
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Summary:The current status, as well as some key issues related to the growth and characterization of II-VI blue/green laser diodes are reviewed. The Zn(Se,Te) graded contact to p-ZnSe is effective in supporting the room-temperature CW operation of green (508 nm) laser diodes while device lifetimes are currently limited by the formation of dark defects in the active region. The role of extended and point defects in degradation will be discussed. Additional problems have arisen in the move to shorter wavelengths. For example, an observed increase of resistivity with increased bandgap energy has been associated with the formation of AX centers, a DX like behavior for acceptors.
ISSN:1079-4700
DOI:10.1109/CORNEL.1995.482414