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M. E. BASHIR1, A. B. DAR1,* , F. AHMAD1
Filterless photonic technique for millimeter-wave generation using three cascaded-parallel Mach-Zehnder modulators with frequency multiplication factor of 6 and 18 has been proposed in this paper. A local oscillator of 5 GHz frequency is 18-tupled to 90 GHz and sextupled to 30 GHz respectively. The proposed system works as frequency sextupler in broad range of modulation index of 1-2.2 with optical side band suppression ratio well above 30 dB. At modulation index of 4.88, the system operates as a frequency 18-tupler with acceptable tolerance to small variations in the modulation index. Further, the proposed system performance is independent of extinction ratio change of optical modulators.
Mach-Zehnder modulator, Splitting ratio, Optical millimeter wave generation, Frequency tupling, Optical sideband suppression ratio.
M. E. BASHIR, A. B. DAR, F. AHMAD, Filterless frequency sextupling and 18-tupling optical millimeter-wave generation using Mach-Zehnder modulators, Optoelectronics and Advanced Materials - Rapid Communications, 19, 11-12, November-December 2025, pp.503-510 (2025).
Submitted at: June 26, 2025
Accepted at: Dec. 2, 2025
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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