Low-Timing-Jitter and Low-Phase-Noise Microwave Signal Generation Using a VCSEL-Based Optoelectronic Oscillator

• Published in: Ingeniería e investigación Vol. 42; no. 2; p. e87189
• Main Authors: Muñoz, Christian Daniel, Coronel, Juan, Varon, Margarita, Destic, Fabien, Rissons, Angelique
• Format: Journal Article
• Language: English
• Published: Bogota Universidad Nacional de Colombia 01-08-2022; Facultad de Ingeniería, Universidad Nacional de Colombia
• Subjects: Delay lines; ENGINEERING, MULTIDISCIPLINARY; fibra óptica; fluctuación de fase; jitter; Noise; Noise generation; optical fiber; Optical fibers; optoelectronic oscillator; Optoelectronics; oscilador optoelectrónico; Phase noise; ruido de fase; Signal generation; Timing jitter; VCSEL; Vertical cavity surface emission lasers; oscilador optoelectrónico; jitter; VCSEL; optoelectronic oscillator; optical fiber; ruido de fase; fibra óptica; fluctuación de fase; phase noise
• ISSN: 0120-5609; 2248-8723; 2248-8723
• DOI: 10.15446/ing.investig.v42n2.87189

This article presents the first results of the timing-jitter characterization of a VCSEL-based optoelectronic oscillator (VBO) at 2,5GHz. For all implementations, vertical-cavity surface-emitting lasers (VCSEL) emitting in the O and C-bands were characterized. The resonant cavity was modified through the optical delay line length to verify its impact on timing-jitter and phase noise of the VBO. The lowest peak-to-peak jitter value obtained experimentally was 71 mUI when the optical fiber length was 1 km, whereas the lowest phase noise was -124 dBc/Hz with 5 km. This phase noise value, measured at 10 kHz offset, represents an 8 dB improvement compared to previous results, and it is the lowest value reported in the literature for the VBO architecture at 2,5GHz.