Microwave Photonics Low Phase Noise RF Comb Generator for D- and J-Band
We present a microwave photonic RF comb generator based on a quartz-stabilized, ultra-low phase noise fs pulse laser in combination with high-speed RF waveguide coupled photodetectors. With 325 GHz, the cutoff frequency of the subsystem exceeds the state of the art and enables broadband microwave comb generation with 1 GHz spacing in the D- and J band, when changing the photodetector from a WR6.5 to a WR3.4 device. We generate microwave tones at 270 GHz with a phase noise of −81 dBc/Hz at 1 kHz frequency offset and below −130 dBc/Hz at 1 MHz offset while achieving a spectral width below 1.7 Hz in the electrical domain
Authors
- Florian Emaury (ORCID: https://orcid.org/0000-0003-2460-8005)
- Arbnor Berisha (ORCID: https://orcid.org/0009-0001-6525-308X)
- Patrick Runge (ORCID: https://orcid.org/0000-0001-7158-6385)
- B. Rudin (ORCID: https://orcid.org/0000-0003-2343-6344)
- Edgar C. Fernandes (ORCID: https://orcid.org/0000-0003-4854-2119)
- Hendrik Boerma (ORCID: https://orcid.org/0000-0002-8653-4569)
- Jonas Gläsel (ORCID: https://orcid.org/0000-0002-1913-9972)
- Trung Thanh Tran (ORCID: https://orcid.org/0000-0002-1730-0590)
- Martin Schell (ORCID: https://orcid.org/0000-0002-5632-0105)
- Karolis Balskus
Institutions
- Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute (DE)
Publication Details
- Journal
- Journal of Lightwave Technology
- Published
- 2025-11-12
- DOI
- https://doi.org/10.1109/jlt.2025.3632095
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00