Short pulses from a synchronously pumped quantum dot laser

Author

Lingk, C. ; Feldmann, J. ; Arzberger, M. ; Amann, M.-C. ; Abstreiter, G.

Author_Institution

Photonics & Optoelectronics Group, Univ. of Munich, Germany

fYear

2002

fDate

24-24 May 2002

Firstpage

541

Abstract

Summary form only given. In this paper, we show the generation of sub-10 ps optical pulses by optical synchronous pumping of a QD laser coupled to an external cavity. The QD laser is a ridge waveguide laser structure with a length of 1.7 mm and a mesa width of 5 /spl mu/m. In the active material, 7 layers of InAs QDs (dot coverage: 10/sup 11/ cm/sup -2/) are embedded in GaAs and are surrounded by an AlGaAs waveguide. This structure is pumped optically by 100 fs pulses from a mode-locked Ti:sapphire laser (excitation wavelength: 800 nm, repetition frequency: 80 MHz) that is focused onto the ridge with a cylindrical lens. Together with the tunability of the emission wavelength such devices are promising candidates for fiber optic communication.

Keywords

III-V semiconductors; indium compounds; laser cavity resonators; optical pulse generation; optical pumping; quantum dot lasers; semiconductor quantum dots; waveguide lasers; 1.7 mm; 10 ps; 5 micron; 800 nm; AlGaAs; AlGaAs waveguide; InAs synchronously pumped QD laser; InAs-GaAs; excitation wavelength; external cavity coupling; mesa width; mode-locked Ti:sapphire laser; optical synchronous pumping; quantum dot laser; ridge waveguide laser structure; sub-10 ps optical pulse generation; Laser excitation; Optical coupling; Optical pulse generation; Optical pulses; Optical pumping; Optical waveguides; Pump lasers; Quantum dot lasers; Synchronous generators; Waveguide lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-706-7

Type

conf

DOI

10.1109/CLEO.2002.1034299

Filename

1034299