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Quantum-well design for monolithic optical devices with gain and saturable absorber sections

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2 Author(s)
Nikolaev, V.V. ; Dept. of Electron., Univ. of York, UK ; Avrutin, E.A.

We propose a new design of semiconductor quantum-well heterostructures, which can be used to improve the performance of monolithic mode-locked diode lasers and all-optical signal-processing devices with gain and saturable absorber sections. Numerical modeling shows that this design can increase the carrier sweep-out rate from the absorber section by several orders of magnitude, while retaining high carrier confinement on the ground level making for efficient signal amplification by the gain sections.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 1 )