Class-A dual-frequency VECSEL at telecom wavelength

We report class-A dual-frequency oscillation at 1.55 μm in a vertical external cavity surface emitting laser with more than 100 mW optical power. The two orthogonal linear polarizations of different frequencies oscillate simultaneously as their nonlinear coupling is reduced below unity by spatially...

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Bibliographic Details
Published in:Optics letters 2014-10, Vol.39 (19), p.5586-5589
Main Authors: De, Syamsundar, Baili, Ghaya, Alouini, Mehdi, Harmand, Jean-Christophe, Bouchoule, Sophie, Bretenaker, Fabien
Format: Article
Language:English
Subjects:
Holes
Joining
Lasing
Linear polarization
Optics
Oscillations
Physics
Spectra
Surface emitting lasers
Unity
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Summary:We report class-A dual-frequency oscillation at 1.55 μm in a vertical external cavity surface emitting laser with more than 100 mW optical power. The two orthogonal linear polarizations of different frequencies oscillate simultaneously as their nonlinear coupling is reduced below unity by spatially separating them inside the active medium. The spectral behavior of the radio frequency beatnote obtained by optically mixing two polarizations and the phase noise of the beatnote have been explored for different coupling strengths between the lasing modes.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.39.005586