Digital operation and eye diagrams in spin-lasers

Abstract

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.

Document Details

Document Type
Pub Defense Publication
Publication Date
Aug 24, 2015
Source ID
10.1063/1.4929612

Entities

People

  • Evan Wasner
  • Igor Žutić
  • Jeongsu Lee
  • Sean Bearden

Organizations

  • National Science Foundation
  • Office of Naval Research
  • University at Buffalo
  • University of Regensburg

Tags

Fields of Study

  • Engineering
  • Physics

Readers

  • Graph Algorithms and Convex Optimization.
  • Radio communications and signal processing.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy