METHOD AND SYSTEM OF PRODUCING A REDUNDANT OPTICAL COMB AND APPLICATIONS THEREOF
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United States of America Patent
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Issued Date -
Jan 4, 2024
app pub date -
Jun 18, 2023
filing date -
Jun 30, 2022
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Abstract
The present invention describes a free spectral range (FSR) and center wavelength tunable redundant optical comb based on a sagnac loop mirror (SLM) and bidirectional Mach-Zehnder modulator (BMZM). The optical signal from a continuous wave (CW) laser is split into two parts which travel in clockwise and counter clockwise directions inside the SLM and are modulated by sinusoidal RF signal with the help of BMZM. The modulation of optical signals with sinusoidal RF signal using BMZM results into the generation of two optical combs inside the SLM. Both optical combs are obtained simultaneously at the output port of the SLM when the polarization controller (PC) is adjusted to have 90° phase difference between the clockwise and counterclockwise generated combs. The proposed design can be used in protection switching and in data centers. A corresponding method for generating redundant optical combs is also provided.
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