Optical local oscillator for coherent spectrum analyzers based on electrical frequency sweeping with a four times measurement range

Jinrong Liang; Qiang Liu; Shangyuan Li; Minming Geng; Zhenrong Zhang

doi:10.1117/12.2644214

9 September 2022 Optical local oscillator for coherent spectrum analyzers based on electrical frequency sweeping with a four times measurement range

Jinrong Liang, Qiang Liu, Shangyuan Li, Minming Geng, Zhenrong Zhang

Author Affiliations +

Proceedings Volume 12328, Second International Conference on Optics and Image Processing (ICOIP 2022); 1232809 (2022) https://doi.org/10.1117/12.2644214
Event: Second International Conference on Optics and Image Processing (ICOIP 2022), 2022, Taian, China

Abstract

A microwave photon signal generation method based on electrical frequency sweeping is proposed. The frequency sweeping range of the microwave photon signal is 4 times that of the frequency-swept microwave source, which can reach 380 GHz. In addition, the spectral purity of the signal is relatively high, and its optical sideband suppression ratio is greater than 96 dB, which can serve as a swept-tuned optical local oscillator (LO) of the coherent spectrum analyzer to improve the resolution of spectral analysis.

Citation Download Citation

Jinrong Liang, Qiang Liu, Shangyuan Li, Minming Geng, and Zhenrong Zhang "Optical local oscillator for coherent spectrum analyzers based on electrical frequency sweeping with a four times measurement range", Proc. SPIE 12328, Second International Conference on Optics and Image Processing (ICOIP 2022), 1232809 (9 September 2022); https://doi.org/10.1117/12.2644214

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KEYWORDS

Modulators

Modulation

Polarization

Oscillators

Signal generators

Spectrum analysis

Microwave photonics

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