Voltage-tunable OPO with an alternating dispersion dimer integrated on chip

TL;DR

This paper introduces a voltage-tunable, chip-integrated optical parametric oscillator that leverages an alternating dispersion dimer to achieve nearly 20 THz wavelength tuning without requiring a tunable pump laser.

Contribution

The work demonstrates a novel on-chip device that enables voltage-controlled wavelength tuning of an optical parametric oscillator using an alternating dispersion dimer, eliminating the need for a tunable pump laser.

Findings

Achieved nearly 20 THz wavelength tuning near 1550 nm.

Implemented a voltage-tunable device with efficient pump filtering.

Integrated the scheme on a chip for compact, low-cost applications.

Abstract

Optical parametric oscillators enable the conversion of pump light to new frequency bands using nonlinear optical processes. Recent advances in integrated nonlinear photonics have led to create compact, chip-scale sources via Kerr nonlinearity-induced parametric oscillations. While these sources have provided broadband wavelength tuning, the ability to tune the emission wavelength via dynamically altering the dispersion, has not been attained so far. Here we present a voltage-tunable, on-chip integrated optical parametric oscillator based on alternating dispersiondimer, allowing to tune the emission over nearly 20 THz near 1550 nm. Unlike previous approaches, our device eliminates the need for a widely tunable pump laser source and provides efficient pump filtering at the drop port of the auxiliary ring. Integration of this scheme on a chip opens up the possibility of compact and low-cost voltage-tunable parametric oscillators with diverse application possibilities.