A monolithically integrated two-section laser is presented for wideband and frequency-tunable photonic microwave generation. The laser consists of two back-to-back DFB sections forming a mutually coupled structure. By properly adjusting the bias currents of two sections, the laser can stably work at the state of period-one oscillation over a wide range of frequency detuning. Based on this, continuous and linear tuning of photonic microwave signals can be achieved. Experimental results confirm that a large tunable range from 12.45 to 80.30 GHz can be realized using this laser.
Original languageEnglish
Pages (from-to)404-411
Number of pages8
JournalJournal of Lightwave Technology
Volume41
Issue number2
Early online date21 Oct 2022
DOIs
Publication statusPublished - 15 Jan 2023

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