Accession Number:

ADA535304

Title:

3-dB Bandwidth Enhancement via the Gain-Lever Effect in Quantum-Dot Lasers

Descriptive Note:

Journal article, 15 Sep 2008-31 Jul 2010

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AEROSPACE COMPONENTS AND SUBSYSTEMS TECHNOLOGY DIVISION

Report Date:

2010-07-01

Pagination or Media Count:

11.0

Abstract:

We investigate the small-signal modulation response of two-section, gain-lever, quantum-dot semiconductor lasers. A three-pole modulation function is derived from a 3-D set of rate equations, and a 70 3-dB bandwidth enhancement is computed and experimentally realized in an undoped quantum-dot gain-lever laser under extreme asymmetric-bias conditions. Finally, it is demonstrated that the 3-dB bandwidth is three times the free-running relaxation oscillation frequency in these types of laser structures, as opposed to 1.55 times in the case of conventional single-section lasers.

Subject Categories:

  • Lasers and Masers
  • Quantum Theory and Relativity
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE