Measurement and characterization of laser chirp of multiquantum-well distributed-feedback lasers
نویسندگان
چکیده
منابع مشابه
Self-injected semiconductor distributed feedback lasers for frequency chirp stabilization.
It is well known that semiconductor distributed feedback lasers (DFB) are key devices for optical communications. However direct modulation applications are limited by the frequency chirp induced by current modulation. We demonstrate that a proper external control laser operation leads to chirp-to-power ratio (CPR) stabilization over a wide range of modulation frequencies as compared to the fre...
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The dynamic properties of distributed feedback lasers (DFBs) based on InAs/InGaAs quantum dots (QDs) are studied. The response function of QD DFBs under external modulation is measured, and the gain compression with photon density is identified to be the limiting factor of the modulation bandwidth. The enhancement of the gain compression by the gain saturation with the carrier density in QDs is...
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AbstructWe demonstrated the successful operation of longwavelength InGaAsP low threshold-current index-coupled and gain-coupled DFB lasers grown by chemical beam epitaxy (CBE). For index-coupled DFB lasers, buried-heterostructure six-QW DFB lasers (250 pm long and as-cleaved) operated at 1.55 Lrm with CW threshold currents 10-15 mA and slope efficiencies up to 0.35 mW/mA (both facets). A side-m...
متن کاملExperimental demonstration of distributed feedback semiconductor lasers based on reconstruction-equivalent-chirp technology.
In this paper we report, to the best of our knowledge, the first experimental realization of distributed feedback (DFB) semiconductor lasers based on reconstruction-equivalent-chirp (REC) technology. Lasers with different lasing wavelengths are achieved simultaneously on one chip, which shows a potential for the REC technology in combination with the photonic integrated circuits (PIC) technolog...
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ژورنال
عنوان ژورنال: IEEE Photonics Technology Letters
سال: 1999
ISSN: 1041-1135,1941-0174
DOI: 10.1109/68.748217