Dual-fiber wavelength-tuned photonic-delay phase-noise measurement

Lavrič, Andrej (avtor), Vidmar, Matjaž (avtor), Batagelj, Boštjan (avtor)

The development of microwave photonics has revitalized the field of microwave measurements where, among other factors, the need to characterize phase noise is essential for the development of oscillators. Optical fiber, with its low losses and its ability to implement long time delays, attracted attention to the delay-line method for phase-noise measurements. However, for correct operation, an accurate adjustment of the phase and/or delay is required. We address this issue by utilizing the chromatic dispersion of the optical fiber to implement the wavelength-tuned time delay. A novel, dual-fiber, wavelength-tuned, photonic-delay solution for the measurement of phase noise is proposed, which extends the phase-tuning range and enables self-adjustment. The proposed approach is experimentally demonstrated and validated by measuring 10-GHz microwave oscillators. The noise floors achieved during the experiment were −117 dBc/Hz and −136 dBc/Hz at 1 kHz and 10 kHz, respectively.

• Jezik: Angleški jezik
• Ključne besede: microwave photonics, phase-noise measurement, delay-line method, photonic delay, chromatic dispersion, phase shift, wavelength-tuned time delay, microwave measurement, microwave theory and techniques, microwave oscillators, phase measurement, optical fibers, microwave filters, optical fiber dispersion, microwave amplifiers, delays
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FE - Fakulteta za elektrotehniko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2026
• Št. strani: Str. 404–412
• Številčenje: Vol. 44, no. 2
• PID: 20.500.12556/RUL-177913
• UDK: 621.39
• ISSN pri članku: 1558-2213
• DOI: 10.1109/JLT.2025.3538128
• COBISS.SI-ID: 236931075
• Datum objave v RUL: 13.01.2026

Gradivo je del revije

• Naslov: Journal of lightwave technology
• Skrajšan naslov: J. lightwave technol.
• Založnik: Institute of Electrical and Electronics Engineers
• ISSN: 1558-2213
• COBISS.SI-ID: 10568276

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: mikrovalovna fotonika, merjenje faznega šuma, postopek s kasnilnim vodom, optična zakasnitev, barvna razpršitev, fazni zasuk, valovnodolžinsko uglaševanje časovne zakasnitve