Toward a widely tunable narrow linewidth RF source through heterogenous silicon photonic integration

Ejzak, Garrett A.; Grund, David W.; Schneider, Garrett J.; Murakowski, Janusz; Shi, Shouyuan; Prather, Dennis W.

doi:10.1117/12.919384

Cited by 3 publications

(1 citation statement)

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“…With such modifications to incorporate such higher performing components, we believe that the system presented can readily be extended well beyond its present limitations. Lastly, noting the impressive recent progress in the area of photonic integration [6], [7], [8], we believe that the system design described here can be transitioned into an integrated package format using these technologies, and we are currently engaged in efforts toward this goal [9], [10].…”

Section: Conclusion: Summary and Future Improvementsmentioning

confidence: 95%

Widely tunable narrow-line RF source based on modulation sideband injection-locked lasers

Schneider

Murakowski

Schuetz

et al. 2013

2013 IEEE International Topical Meeting on Microwave Photonics (MWP)

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We have developed and demonstrated a photonic RF source architecture with a tuning range of more than 7 octaves. It is based on the photomixing of a pair of tuned lasers. Narrow linewidth is obtained by modulating one laser with a reference signal and injection seeding the other with a harmonic sideband. Tuning is accomplished by selecting a specific sideband, i.e. a particular harmonic of the drive signal, for injection locking, combined with tuning the modulator drive signal. In this paper we discuss the operation of the system and present experimental results characterizing its performance. We also discuss planned improvements to the system, including the implementation of low-noise VCOs for the reference signal, and increased RF signal power through the use of high-performance photodiode detectors.

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