Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 21, Issue 1-4, Pages 60-62Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2008.2008658
Keywords
Microwave photonics; photonic radio frequency (RF) phase shifter; silicon microring resonator
Funding
- NSFC [60777040]
- 863 High-Tech Program [2006AA01Z255]
- Shanghai Rising Star Program Phase [07QH14008]
- Swedish Foundation for Strategic Research (SSF)
- Swedish Research Council
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We propose and demonstrate a tunable broadband photonic radio frequency (RF) phase shifter based on a silicon microring resonator. This scheme utilizes the thermal nonlinear effect of the silicon microring to change the electrical phase of the RF signal with a wide tuning range. A prototype of the phase shifter is experimentally demonstrated for a 40-GHz signal with a 0-4.6-rad tuning range.
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