Antiphase Noise Dynamics in a Dual-Wavelength Vertical-External-Cavity Surface-Emitting Laser

Author

Wichmann, M. ; Town, G. ; Quante, J. ; Gaafar, M. ; Rahimi-Iman, A. ; Stolz, W. ; Koch, S.W. ; Koch, M.

Author_Institution

Dept. of Phys. & Mater. Sci. Center, Philipps-Univ. Marburg, Marburg, Germany

Volume

27

Issue

19

fYear

2015

Firstpage

2039

Lastpage

2042

Abstract

We present extensive measurements of the pump-dependent dynamics of antiphase noise in a dual-wavelength multimode vertical-external-cavity surface-emitting laser (VECSEL). We show that antiphase noise at frequencies below 10 kHz dominates the relative-intensity noise spectrum in the emission of a dual-wavelength VECSEL due to gain competition between the two-lasing wavelengths. We observe that with increasing pump power the antiphase noise decreases in amplitude but increases in bandwidth. Surprisingly, at even higher pump powers the spectral extent of the antiphase noise narrows significantly. The results provide information critical to potential applications of dual-wavelength VECSELs, such as intracavity parametric frequency conversion.

Keywords

laser cavity resonators; laser modes; laser noise; optical pumping; quantum well lasers; surface emitting lasers; antiphase noise dynamics; dual-wavelength VECSEL; dual-wavelength multimode vertical-external-cavity surface-emitting laser; gain competition; pump power; pump-dependent dynamics; relative-intensity noise spectrum; Laser noise; Pump lasers; Vertical cavity surface emitting lasers; Dual-wavelength; anti-phase noise dynamics; semiconductor disk laser (SDL); vertical-external cavity surface-emitting laser (VECSEL);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2449656

Filename

7132712