Digital operation and eye diagrams in spin-lasers
Published in Applied Physics Letters, 2015
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.
Recommended citation: Evan Wasner, Sean Bearden, Jeongsu Lee, and Igor Zutic. 2015. "Digital operation and eye diagrams in spin-lasers." Applied Physics Letters. 107 (8): 082406.