Wavelength-Tunable Optical Two-Tone Signals Generated Using Single Mach-Zehnder Optical Modulator in Single Polarization-Mode Sagnac Interferometer

We demonstrate 60 GHz separation optical two-tone signal generation at arbitrary C-band wavelengths without involving complicated optical wavelength filtering. By utilizing a polarizer, the selective suppression of undesired low-order optical sidebands has been proven and optimized based on model an...

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Bibliographic Details
Published inPhotonics Vol. 9; no. 3; p. 194
Main Authors Chiba, Akito, Akamatsu, Yosuke
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.03.2022
Subjects
C band
microwave photonics
Optical communication
optical modulation
optical polarization
optical two-tone signals
Polarizers
RF photonics
Sidebands
Signal generation
Wavelength
Wavelengths
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Summary:We demonstrate 60 GHz separation optical two-tone signal generation at arbitrary C-band wavelengths without involving complicated optical wavelength filtering. By utilizing a polarizer, the selective suppression of undesired low-order optical sidebands has been proven and optimized based on model analysis. By utilizing this scheme in conjunction with the optimized parameters, more than 20 dB of suppression of undesired optical sidebands have been successfully achieved over a 40 nm wavelength range. This scheme allows us to generate optical two-tone signals at the desired wavelength.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics9030194