High Repetition Rate Ti:Sapphire Laser Mode-Locked by InP Quantum-Dot Saturable Absorber

Author

Butkus, Mantas ; Robertson, Gordon ; Maker, Gareth ; Malcolm, Graeme ; Hamilton, Craig ; Krysa, A.B. ; Stevens, B.J. ; Hogg, Richard A. ; Qiu, Yang ; Walther, Thomas ; Rafailov, Edik U.

Author_Institution

Sch. of Eng., Phys. & Math., Univ. of Dundee, Dundee, UK

Volume

23

Issue

21

fYear

2011

Firstpage

1603

Lastpage

1605

Abstract

We report the first demonstration of a Ti:sapphire laser mode-locked with a quantum-dot mode-locker (QDM) at repetition rates up to 1.77 GHz with 8-ps pulse duration and 400-mW average output power. So far, with quantum-well-based mode-lockers, a repetition rate of only up to 300 MHz has been achievable in our experiments. We show that QDM can support mode-locking in a wide range of repetition rates from 100 MHz to 1.8 GHz.

Keywords

III-V semiconductors; indium compounds; laser mode locking; optical saturable absorption; quantum dot lasers; sapphire; solid lasers; titanium; Al₂O₃:Ti; InP; InP quantum-dot saturable absorber; Ti:sapphire laser; high repetition rate; laser mode-locked; time 8 ps; Laser excitation; Laser mode locking; Laser tuning; Measurement by laser beam; Pump lasers; Quantum dot lasers; Surface emitting lasers; Laser mode locking; quantum dots (QDs); solid lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2164902

Filename

5985477