Research Progress on Optical Millimeter-Wave Generation Based on Four-Wave Mixing

Li, 刘丽 Liu; Tiefeng, 徐铁峰 Xu; Zhenxiang, 戴振祥 Dai; Taijun, 刘太君 Liu; Shixun, 戴世勋 Dai; Xunsi, 王训四 Wang; Xiupu, 张秀普 Zhang

doi:10.3788/lop53.050001

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“…Some schemes use semiconductor optical amplifiers (SOA) devices and optical filters to realize four‐wave mixing to generate MMW signals, which have large spontaneous noise and low efficiency. [ 14 ] SOA devices are unstable in use and may also lead to a decrease in the amplitude of optical sidebands. Optical Filters are expensive, have low practicability, and limited applications.…”

Section: Introductionmentioning

confidence: 99%

Photon Generation Scheme of 32‐Fold Millimeter‐Wave Signal Based on Mach‐Zehnder Modulator

Wang,

Ren

et al. 2024

Annalen der Physik

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This paper proposes a 32‐tupling frequency millimeter‐wave (MMW) filter‐free system based on four Mach‐Zehnder Modulators (MZM) connected in parallel and cascaded with a simple radio‐fiber (RoF) link structure. The four MZMs are all at the maximum transmission point (MATP), and the radio frequency (RF) driving voltage phase difference between MZMs is π /2. The center carrier is suppressed by using an optical attenuator (OATT) and an optical phase shifter (OPS). Two parallel MZMs can generate ±8th order and ±12th order optical sidebands, and the ±4th order optical sidebands can be suppressed by adjusting the modulation index m of the MZM, using cascaded two dual‐parallel MZMS(DPMZM) and the phase difference of the RF signal source is π/4 to generate ±16th order optical sidebands. The theoretical analysis and simulation experiments are performed for the scheme proposed in this paper. The results show that the simulated and theoretical values of the optical sideband suppression ratio (OSSR) for ±16th order optical sideband signals are 60.02 and 59.96 dB, respectively, and the simulated and theoretical values of the RF sideband suppression ratio (RFSSR) for the 32‐tupling MMW signal are 56.34 and 53.94 dB, respectively.

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Section: Introductionmentioning

confidence: 99%