On-chip optical parametric oscillation into the visible: generating red, orange, yellow, and green from a near-infrared pump

Published

October 12, 2020

Author(s)

Xiyuan Lu, Gregory Moille, Ashutosh Rao, Daron Westly, Kartik Srinivasan

Abstract

Optical parametric oscillation (OPO) in a microresonator is promising as an efficient and scalable approach to on-chip coherent visible light generation. However, so far, only red light near the edge of the visible band at 710 nm has been reported. In this work, we demonstrate on- chip OPO covering >130 THz of the visible spectrum, including red, orange, yellow, and green wavelengths. In particular, using a pump laser that is scanned approximately 5 THz in the near- infrared from 386 THz (777 nm) to 391 THz (767 nm), the signal is tuned from the near-infrared at 395 THz (760 nm) to the visible at 528 THz (568 nm), while the idler is tuned from the near- infrared at 378 THz (794 nm) to the infrared at 254 THz (1180 nm). The widest signal-idler separation we demonstrate of 274 THz corresponds to more than an octave span and is the widest demonstrated for a nanophotonic OPO to date. Our work is a clear demonstration of how nonlinear nanophotonics can transform light from readily accessible compact near-infrared lasers to targeted visible wavelengths of interest, which is crucial for field-level deployment of spectroscopy and metrology systems.

Citation

Optica

Volume

7

Issue

10

Pub Type

Journals

Download Paper

https://doi.org/10.1364/OPTICA.393810

Local Download

Citation

Lu, X. , Moille, G. , Rao, A. , Westly, D. and Srinivasan, K. (2020), On-chip optical parametric oscillation into the visible: generating red, orange, yellow, and green from a near-infrared pump, Optica, [online], https://doi.org/10.1364/OPTICA.393810, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=929815 (Accessed April 23, 2024)