Demonstration of InP-on-Si Self-Pulsating DFB Laser Diodes for Optical Microwave Generation

We demonstrate self-pulsating heterogeneously integrated III-V-on-SOI two-section distributed feedback laser diodes, with a wide range of self-pulsation frequencies between (but not limited to) 12 and 40 GHz. The spectral width of the free-running pulsations is 40 MHz. The dependence of the self-pul...

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Bibliographic Details
Published in:IEEE photonics journal 2017-08, Vol.9 (4), p.1-8
Main Authors: Keqi Ma, Shahin, M., Abbasi, A., Roelkens, G., Morthier, G.
Format: Article
Language:English
Subjects:
Diode lasers
Distributed feedback devices
Distributed feedback lasers
integrated optics devices
Laser tuning
Masers
optical microwave
Optical waveguides
radio-over-fiber
self-pulsating lasers
semiconductor lasers
silicon photonics
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Summary:We demonstrate self-pulsating heterogeneously integrated III-V-on-SOI two-section distributed feedback laser diodes, with a wide range of self-pulsation frequencies between (but not limited to) 12 and 40 GHz. The spectral width of the free-running pulsations is 40 MHz. The dependence of the self-pulsation frequency on the injected current combination and the temperature is investigated. Finally, locking the self-pulsation to an electrical RF signal with power as low as -17 dBm is demonstrated, which can be used for the generation of an optical microwave carrier with a spectral width less than 10 Hz. Such laser could be beneficial for radio-over-fiber applications.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2017.2724840