20.500.12556/RUL-177913 Dual-fiber wavelength-tuned photonic-delay phase-noise measurement 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. 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 mikrovalovna fotonika merjenje faznega šuma postopek s kasnilnim vodom optična zakasnitev barvna razpršitev fazni zasuk valovnodolžinsko uglaševanje časovne zakasnitve true false true Angleški jezik Slovenski jezik Članek v reviji 2026-01-13 11:13:41 2026-01-13 11:13:45 2026-01-27 13:58:42 0000-00-00 00:00:00 2026 0 0 Str. 404–412 no. 2 Vol. 44 2026 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 621.39 1558-2213 10.1109/JLT.2025.3538128 236931075 Dual-Fiber_Wavelength-Tuned_Photonic-Delay_Phase-Noise_Measurement.pdf Dual-Fiber_Wavelength-Tuned_Photonic-Delay_Phase-Noise_Measurement.pdf 1 4F472C2826051852A8BF1BAFC66CA7F1 bf7341f21a006aeeafce27916d96c95eaf8c9a6f52b43470abecafb055a04350 c4b57b54-f068-11f0-bf92-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=225336 https://ieeexplore.ieee.org/document/10870101 1 844db590-f068-11f0-bf92-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=225335 Fakulteta za elektrotehniko 0 0 0