Generation of a 100‐GHz optical SSB signal using XPM‐based all‐optical frequency upconversion in an SOA‐MZI

Abstract

filter could be achieved. Besides, we have also theoretically analyzed and experimentally investigated the evolution of interferometric spectral fringe visibility under different applied RF signal voltages, and the critical voltage of about 9 V has been found to acquire the maximum interferometric fringe visibility. Our proposed bandpass filtering scheme has several distinguished features such as fiber-compatibility, interferometric type spectral shape, spectral reconfigurability, and excellent spectral tunability, which could find promising applications in future optical communication systems. ACKNOWLEDGMENTS

Modulation and Switching Architecture Performances for Frequency Up-Conversion of Complex-Modulated Data Signals Based on a SOA-MZI Photonic Sampling Mixer

“…We are going to develop (11) for the Modulation and Switching architectures in the following way. We are interested only in the combination of terms in (11) that are generating intermodulation products at frequencies 𝑓 𝑐𝑘𝑖 ± 𝑓 𝑑𝑎𝑡 , while eliminating all other terms.…”

“…We are going to develop (11) for the Modulation and Switching architectures in the following way. We are interested only in the combination of terms in (11) that are generating intermodulation products at frequencies 𝑓 𝑐𝑘𝑖 ± 𝑓 𝑑𝑎𝑡 , while eliminating all other terms. For this purpose, firstly we eliminate the first term of (11) since we notice that it contains no intermodulation products but only the frequencies of the input signal at port C.…”

“…More analytically, for the Switching architecture, the only signal traversing SOA2 is 𝑃 𝑑𝑎𝑡 , therefore 𝛿𝑔 2 and 𝛿𝜑 2 variations are induced at frequency 𝑓 𝑑𝑎𝑡 . As a result, for the second term of (11), the product of 𝛿𝑔 2 and 𝑃 ̅ 𝑖𝑛 as well as the product of 𝛿𝜑 2 and 𝑃 ̅ 𝑖𝑛 correspond to variations at frequency 𝑓 𝑑𝑎𝑡 . For the third term of ( 11), the product of 𝛿𝑔 2 and 𝛿𝑝 𝑖𝑛 as well as the product of 𝛿𝜑 2 and 𝛿𝑝 𝑖𝑛 correspond to variations at frequency 2𝑓 𝑑𝑎𝑡 .…”

“…Semiconductor Optical Amplifiers (SOA) exploiting the nonlinear phenomena of XGM (Cross-Gain Modulation) [9] and XPM [10]- [17] can be equally used for mixing in the form of a stand-alone device or embedded in an interferometric arrangement such as a Semiconductor Optical Amplifier-Mach-Zehnder Interferometer (SOA-MZI). Lately, SOA-MZI-based frequency mixer was successfully used to generate a 100 GHz signal through up-conversion of 1 GHz signal [11]. SOA and SOA-MZI exhibit all the advantages mentioned in the previous paragraph while being an all-optical solution.…”

Frequency Alteration Built on an Electro-Optical Sampling SOA–MZI Using a Differential Modulation Schema

“…Semiconductor optical amplifiers (SOAs) rely on their nonlinearity such as cross-gain modulation (XGM) [10] and XPM [11][12][13][14][15][16][17][18][19][20] can also be used for shifting at the same time in the layout of a detached apparatus or implemented in an interferometric structure such as an SOA-Mach-Zehnder Interferometer (SOA-MZI). SOA-MZIs can achieve good performance, such as a frequency range up to 100 GHz [19]. All-optical mixing based on a sampling SOA-MZI [11][12][13][14][15][16][17] has achieved excellent characteristics such as high positive conversion gain for both experimental and simulation studies.…”