Title :
Optically Decoupled Loss Modulation in a Duo-Cavity VCSEL
Author :
van Eisden, J. ; Yakimov, M. ; Tokranov, V. ; Varanasi, M. ; Mohammed, E.M. ; Young, I.A. ; Oktyabrsky, S.R.
Author_Institution :
Univ. at Albany, Albany
Abstract :
We have proposed and demonstrated the principle of optical decoupling in a vertical-cavity surface-emitting laser (VCSEL)-electroabsorption modulator device by use of a duo-cavity device architecture. This technique promises ultrahigh-frequency modulation of the VCSEL output due to the elimination of the resonance influences on the intrinsic modulation transfer function. By adjusting spectral detuning between the resonances of the duo-cavity configuration, optical decoupling of output modulation by an electroabsorption modulator can be achieved. A flat ( 3 dB) response up to 20 GHz has been measured by proper detuning of the resonances.
Keywords :
optical losses; optical modulation; semiconductor lasers; surface emitting lasers; duo-cavity VCSEL; electroabsorption modulator; optically decoupled loss modulation; ultrahigh-frequency modulation; vertical-cavity surface-emitting laser-electroabsorption modulator; Bandwidth; Mirrors; Optical feedback; Optical losses; Optical modulation; Resonance; Semiconductor lasers; Surface emitting lasers; Transfer functions; Vertical cavity surface emitting lasers; Cavities; electroabsorption modulation; semiconductor lasers; ultrahigh-frequency (UHF) modulation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.912693
