Electro-optically spectrum switchable, multiwavelength optical parametric oscillators based on aperiodically poled lithium niobate

Tai Jie Wang, Lin Ming Deng, Hung Pin Chung, Wei Kun Chang, Tien Dat Pham, Quan Hsiang Tseng, Reinhard Geiss, Thomas Pertsch, Yen Hung Chen

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We report the first fast switchable multiwavelength optical parametric oscillator based on aperiodic optical superlattice technology. The constructed aperiodically poled lithium niobate (APPLN) integrates the functionalities of two quasi-phase-matching devices on a chip to work simultaneously as an electro-optic (EO) switchable notch-like filter and a multiline optical parametric downconverter. When such an APPLN is built in a 1064-nm-pumped optical resonator system, we achieve the oscillation of dual signals at 1540 and 1550 nm, for a single signal at 1540 nm, and a single signal at 1550 nm in the system when the 3-cm-long APPLN is driven by 0 V, 354 V, and 805 V, respectively. The switching among the three signal spectra is operationally simple and electro-optically fast. The electro-optically switched signals also feature enhanced power spectral density due to the unique EO gain-spectrum filtering mechanism employed in this work.

Original languageEnglish
Pages (from-to)5848-5851
Number of pages4
JournalOptics Letters
Volume45
Issue number20
DOIs
StatePublished - 15 Oct 2020

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