Carrier capture times in 1.5 μm multiple quantum well optical amplifiers

S. Weiss, J. M. Wiesenfeld, D. S. Chemla, G. Raybon, G. Sucha, M. Wegener, G. Eisenstein, C. A. Burrus, A. G. Dentai, U. Koren, B. I. Miller, H. Temkin, R. A. Logan, T. Tanbun-Ek

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

The carrier capture times in multiple quantum well semiconductor amplifiers of different structures are studied under high plasma density conditions. Fast (<1 ps), slow (≳150 ps), and intermediate time constants (2-7 ps) are identified in InGaAs quantum well structures. The intermediate time constant is attributed to carrier diffusion in the cladding layers and identified as the carrier capture time. Short capture times can be achieved by proper design of the device structure.

Original languageEnglish
Pages (from-to)9-11
Number of pages3
JournalApplied Physics Letters
Volume60
Issue number1
DOIs
StatePublished - 1992
Externally publishedYes

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