Digital operation and eye diagrams in spin-lasers

Journal Article · Mon Aug 24 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4929612· OSTI ID:22489164

Wasner, Evan; Bearden, Sean; Žutić, Igor ^[1]; Lee, Jeongsu ^[1]

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1. Department of Physics, University at Buffalo, State University of New York, Buffalo, New York 14260 (United States)

Digital operation of lasers with injected spin-polarized carriers provides an improved operation over their conventional counterparts with spin-unpolarized carriers. Such spin-lasers can attain much higher bit rates, crucial for optical communication systems. The overall quality of a digital signal in these two types of lasers is compared using eye diagrams and quantified by improved Q-factors and bit-error-rates in spin-lasers. Surprisingly, an optimal performance of spin-lasers requires finite, not infinite, spin-relaxation times, giving a guidance for the design of future spin-lasers.

• OSTI ID: 22489164
• Journal Information: Applied Physics Letters, Vol. 107, Issue 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARRIERS
COMPARATIVE EVALUATIONS
DIAGRAMS
ERRORS
LASERS
OPERATION
PERFORMANCE
SIGNALS
SPIN
SPIN ORIENTATION