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Proceedings Paper

Integrated silicon-photonic module for generating widely tunable, narrow-line RF using injection-locked lasers
Author(s): David W. Grund Jr.; Garrett J. Schneider; Garrett A. Ejzak; Janusz Murakowski; Shouyuan Shi; Dennis W. Prather
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Paper Abstract

We have developed a system for generating widely tunable, narrow-line RF signals from a pair of injection-locked lasers. This system is based on injection seeding one laser with a selectable high-order sideband obtained from a second laser that is phase modulated by a narrow-line, low-frequency RF reference oscillator. When these coherent optical outputs are mixed on a fast photodiode, RF output is obtained, with linewidth and phase noise characteristics that are limited by the reference oscillator. The RF output can be tuned over a wide range, in multiples of the reference frequency, and can be fine-tuned by tuning the reference oscillator. In this paper, we present the results of our efforts to develop an integrated version of this system, based on a silicon-photonic integrated circuit coupled to III-V semiconductor gain chips. We describe the fabrication process of the integrated module using heterogeneous integration techniques, and present preliminary results including two lasers operating simultaneously on a single silicon-photonic chip.

Paper Details

Date Published: 28 February 2012
PDF: 11 pages
Proc. SPIE 8259, RF and Millimeter-Wave Photonics II, 825906 (28 February 2012); doi: 10.1117/12.914467
Show Author Affiliations
David W. Grund Jr., Univ. of Delaware (United States)
Garrett J. Schneider, Univ. of Delaware (United States)
Garrett A. Ejzak, Univ. of Delaware (United States)
Janusz Murakowski, Univ. of Delaware (United States)
Shouyuan Shi, Univ. of Delaware (United States)
Dennis W. Prather, Univ. of Delaware (United States)

Published in SPIE Proceedings Vol. 8259:
RF and Millimeter-Wave Photonics II
Robert L. Nelson; Dennis W. Prather; Chris Schuetz; Garrett J. Schneider, Editor(s)

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