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A Widely Tunable Narrow Linewidth RF Source Integrated in a Heterogeneous Photonic Module

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5 Author(s)
Grund, D.W. ; Dept. of Electr. & Comput. Eng., Univ. of Delaware, Newark, DE, USA ; Ejzak, G.A. ; Schneider, G.J. ; Murakowski, J.
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Generating radio-frequency signals over the entire spectrum, from 1 to 100 GHz, typically requires the use of multiple oscillators designed only for specific narrow bands of operation within that spectrum. An optoelectronic system based on modulation side-band-injection-locked lasers is capable of generating RF frequencies tunable over a span of more than seven octaves with low phase noise . We present the results of our efforts to develop a heterogeneously integrated version of this system based on a silicon-photonic integrated circuit coupled to III-V semiconductor gain chips. Towards that end, we have successfully demonstrated an integrated laser module and achieved tunable RF generation with a ~ 1 Hz linewidth.

Published in:

Lightwave Technology, Journal of  (Volume:32 ,  Issue: 7 )

Date of Publication:

April1, 2014

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