Journal article
Limits in Timing Jitters of Forced Microwave Oscillator Using Optical Self-ILPLL
IEEE photonics technology letters, v 29(2), pp 181-184
15 Jan 2017
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A novel optical feedback technique using self-injection locked and phase locked loop (SILPLL) is employed for phase noise reduction of free-running microwave oscillators. Phase noise reduction of 27 dB at 10-kHz offset has been demonstrated by applying this technique for a 10-GHz state of art dielectric resonator oscillator achieving -137 dBc/Hz at 10-kHz offset. A phase noise prediction of this feedback technique is also presented, which very closely corroborates with experimental results. Analysis of SILPLL using the modeling has shown that further phase noise reductions could be achieved, by reducing the flicker phase noise of the long delay lines and microwave amplifiers. Phase noise of -147 dBc/Hz at 10-kHz offset is predicted when the relative intensity noise (RIN) is reduced to the RIN of -170 dB/Hz for an optical power leading to a photocurrent of 5 mA and the b-1(flicker noise) levels of -125 dBc/Hz for RF amplifiers.
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Details
- Title
- Limits in Timing Jitters of Forced Microwave Oscillator Using Optical Self-ILPLL
- Creators
- Tianchi Sun - Drexel UniversityLi Zhang - Synergy MicrowaveAjay K Poddar - Synergy MicrowaveUlrich L Rohde - Synergy MicrowaveAfshin S Daryoush - Drexel University
- Publication Details
- IEEE photonics technology letters, v 29(2), pp 181-184
- Publisher
- IEEE
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000395420000002
- Scopus ID
- 2-s2.0-85015217833
- Other Identifier
- 991019168870104721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Engineering, Electrical & Electronic
- Optics
- Physics, Applied