Evans, I; O'Riordan, C; Connelly, MJ; Barry, LP; Clarke, AM; Anandarajah, PM

2007

December

Optics Communications

Investigation of noise suppression, pulse intensity and chirp of an actively mode-locked semiconductor fiber ring laser

Published

()

ring laser mode-locking semiconductor optical amplifier frequency resolved optical gating optical pulse measurements

280

1

142

146

An actively mode-locked fiber ring laser that utilizes an EDFA and semiconductor optical amplifier (SOA) is presented. The SOA enhances noise suppression. Active mode-locking was demonstrated at repetition rates up to 20 GHz. The effects of intra-cavity power and SOA current on noise suppression are studied for two types of commercially available SOA. The frequency resolved optical gating technique is used to characterize the output pulse stream intensity and frequency chirp. (c) 2007 Elsevier B.V. All rights reserved.

0030-4018

10.1016/j.optcom.2007.07.056