Abstract

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 $\sim$ 1 Hz linewidth.

© 2014 IEEE

Packaging and design of a heterogeneous dual laser chip for a widely tunable spectrally pure optical RF source

David W. Grund, Garrett J. Schneider, Janusz Murakowski, and Dennis W. Prather
Opt. Express 22(17) 19838-19849 (2014)

Unidirectional, widely-tunable and narrow-linewidth heterogeneously integrated III-V-on-silicon laser

Jing Zhang, Yanlu Li, Sören Dhoore, Geert Morthier, and Gunther Roelkens
Opt. Express 25(6) 7092-7100 (2017)

Widely tunable narrow linewidth laser source based on photonic molecule microcombs and optical injection locking

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Opt. Express 30(13) 22388-22395 (2022)

Improved configuration and reduction of phase noise in a narrow linewidth ultrawideband optical RF source

David W. Grund, Shouyuan Shi, Garrett J. Schneider, Janusz Murakowski, and Dennis W. Prather
Opt. Lett. 39(16) 4667-4670 (2014)

Heterogeneously integrated widely tunable laser using lattice filter and ring resonator on Si photonics platform

Takuma Aihara, Tatsurou Hiraki, Takuro Fujii, Koji Takeda, Tai Tsuchizawa, Takaaki Kakitsuka, Hiroshi Fukuda, and Shinji Matsuo
Opt. Express 30(10) 15820-15829 (2022)