Observation of Harmonic-Mode-Locking in a Mode-Locked InAs/InP-Based Quantum-Dash Laser With CW Optical Injection | Health & Environmental Research Online (HERO)

Health & Environmental Research Online (HERO)

Print Feedback Export to File

This record has one attached file:

Citation
Tags

HERO ID

2669637

Reference Type

Journal Article

Title

Observation of Harmonic-Mode-Locking in a Mode-Locked InAs/InP-Based Quantum-Dash Laser With CW Optical Injection

Author(s)

Sooudi, E; Huyet, G; Mcinerney, JG; Lelarge, F; Merghem, K; Martinez, A; Ramdane, A; Hegarty, SP

Year

2011

Is Peer Reviewed?

Yes

Journal

I E E E Photonics Technology Letters
ISSN: 1041-1135

Volume

Issue

Page Numbers

549-551

DOI

10.1109/LPT.2011.2114338

Web of Science Id

WOS:000289209300007

Abstract

We report tunable harmonic mode-locking in continuous-wave (CW) optically injected InAs/InP quantum-dash lasers emitting at 1.56 mu m. The frequency of generated microwave pulses is twice the laser's self-mode-locked frequency. Autocorrelation traces show Gaussian pulses with low time-bandwidth product (approximate to 0.6). Mapping of the dynamics shows that this coherent microwave oscillation (MWO) region has maximum locking range approximate to 600 MHz (approximate to 5 pm). Measurement of the optical linewidth of each individual mode at this regime shows strong narrowing relative to free running values by two orders of magnitude. The RF linewidth of the generated signal is approximate to 160 kHz confirming the coherence among the optical modes and low timing jitter.

Keywords

Microwave oscillators; mode-locked lasers; optical injection; quantum-dash lasers