Widely separated optical Kerr parametric oscillation in AlN microrings

Yulong Tang, Zheng Gong, Xianwen Liu, Hong X. Tang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

Here, we report χ(3)-based optical parametric oscillation (OPO) with widely separated signal-idler frequencies from crystalline aluminum nitride microrings pumped at 2 μm. By tailoring the width of the microring, OPO reaching toward the telecom and mid-infrared bands with a frequency separation of 64.2 THz is achieved. While dispersion engineering through changing the microring width is capable of shifting theOPOsideband by>9 THz, theOPO frequency can also be agilely tuned in the ranges of 1 and 0.1 THz, respectively, by shifting the pump wavelength and controlling the chip's temperature. At high pump powers, the OPO sidebands further evolve into localized frequency comb lines. Such large-frequency-shift OPO with flexible wavelength tunability will lead to enhanced chip-scale light sources.

Original languageEnglish
Pages (from-to)1124-1127
Number of pages4
JournalOptics Letters
Volume45
Issue number5
DOIs
Publication statusPublished - 1 Mar 2020
Externally publishedYes

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