Enhancement of dynamic range in 1.55-μm VCSELs using injection locking

Injection locking is demonstrated to improve the analog performance of long wavelength vertical-cavity surface-emitting lasers. The third-harmonic dynamic range was improved by /spl sim/20 dB/spl middot/Hz/sup 2/3/ to be /spl sim/94 dB/spl middot/Hz/sup 2/3/, and the modulation bandwidth was increas...

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Bibliographic Details
Published in:IEEE photonics technology letters 2003-04, Vol.15 (4), p.498-500
Main Authors: Chrostowski, L., Chih-Hao Chang, Chang-Hasnain, C.J.
Format: Article
Language:English
Subjects:
Bandwidth
Distributed feedback devices
Dynamic range
Frequency
Injection locking
Injection-locked oscillators
Laser feedback
Laser noise
Laser theory
Locking
Modulation
Photonics
Semiconductor lasers
Surface emitting lasers
Vertical cavity surface emission lasers
Vertical cavity surface emitting lasers
Wavelengths
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Summary:Injection locking is demonstrated to improve the analog performance of long wavelength vertical-cavity surface-emitting lasers. The third-harmonic dynamic range was improved by /spl sim/20 dB/spl middot/Hz/sup 2/3/ to be /spl sim/94 dB/spl middot/Hz/sup 2/3/, and the modulation bandwidth was increased two fold. The locking conditions are studied and show that the improvement is present over a wide range of injection power and wavelength detuning.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2003.809292