Nicola, AndriolliCassese, TomassoChiesa, MarcoDios Fernández, Cristina deContestabile, Giampiero2022-10-052022-10-052018-10-21Journal of Lightwave Technology, (2018), 36(23), pp.: 5685-5689.0733-8724https://hdl.handle.net/10016/35843We report the first monolithic InP photonic integrated comb generator made by cascading optical modulators. The device is extremely compact and tunable both in repetition frequency and wavelength, making real-world applications possible. A distributed Bragg reflector laser, a Mach-Zehnder intensity modulator, and two phase modulators are monolithically integrated on a 4.5 x 2.5 mm(2) chip that also includes a booster semiconductor optical amplifier at the output. Modulators integrated on the circuit have a 3 dB bandwidth of 7 GHz and can generate up to 28 comb lines within a 5 dB power range when properly electrically driven (here demonstrated in the range 4-5 GHz). Operation up to 10 GHz is also reported.4eng© 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications standards/publications/rights/index.html for more information.Comb generationInP monolithic photonic integrationIntegrated opticsOptical modulationSemiconductor optical amplifiersGeneratorsPhase modulationBandwidthPhotonicsresearch articleÓpticahttps://doi.org/10.1109/JLT.2018.2877020open access5685235689JOURNAL OF LIGHTWAVE TECHNOLOGY36AR/0000022322