MQW laser structure comprising plural MQW regions

Details MQW laser structure comprising plural MQW regions MQW laser structure comprising plural MQW regions

2011-07-19

2011-07-19

Park, Kinam (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S046010, C372S043010

Reexamination Certificate

active

07983317

ABSTRACT:
Multi-quantum well laser structures are provided comprising active and/or passive MQW regions. Each of the MQW regions comprises a plurality of quantum wells and intervening barrier layers. Adjacent MQW regions are separated by a spacer layer that is thicker than the intervening barrier layers. The bandgap of the quantum wells is lower than the bandgap of the intervening barrier layers and the spacer layer. The active region may comprise active and passive MQWs and be configured for electrically-pumped stimulated emission of photons or it may comprises active MQW regions configured for optically-pumped stimulated emission of photons.

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