Boosting all-optical wavelength conversion efficiency using an AlGaAs-on-insulator Fabry-Perot microresonator without data rate limits
Artikel i vetenskaplig tidskrift, 2025

Four-wave-mixing (FWM) based wavelength conversion offers a versatile solution for flexible optical networks. Significant research has focused on developing new materials and structures to enhance FWM performance. However, high-efficiency waveguide-based wavelength converters typically require either long interaction lengths or high pump power, which in turn limits their phase-matching bandwidth and complicates integration with on-chip lasers. Although microring resonator-based wavelength converters can substantially improve conversion efficiency (CE), they suffer from reduced signal bandwidth due to the resonance filtering effect. In this work, we propose a Fabry-Perot Bragg grating cavity-based singly resonant FWM scheme to enhance CE without compromising the signal bandwidth. In this configuration, only the pump light is resonantly enhanced within the cavity, while the signal and idler light undergo a single pass. We achieve CE enhancements of 16.7 dB in such a cavity compared to a waveguide with the same length on the AlGaAs-on-insulator platform with a phase-matching bandwidth exceeding 200 nm. We also demonstrate a continuously tunable wavelength conversion system, showcasing its potential to support high signal data rates. Our approach provides a promising pathway for on-chip laser-driven nonlinear signal processing, enabling efficient high-speed wavelength conversion and applications where both high CE and data rate are crucial.

On chips

Phase-matching bandwidth

Wavelength converter

Signal bandwidth

Four-wave-mixing

Micro resonators

Data-rate

All-optical wavelength conversion

Fabry-Perot

Rate limit

Författare

Chaochao Ye

Danmarks Tekniske Universitet (DTU)

Ping Zhao

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Sichuan University

Yang Liu

Danmarks Tekniske Universitet (DTU)

Xinda Lu

Danmarks Tekniske Universitet (DTU)

Chanju Kim

Danmarks Tekniske Universitet (DTU)

K. Yvind

Danmarks Tekniske Universitet (DTU)

Peter Andrekson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Minhao Pu

Danmarks Tekniske Universitet (DTU)

APL Photonics

2378-0967 (eISSN)

Vol. 10 4 046115

Brusfria optiska faskänsliga förstärkare och dess tillämpningar

Vetenskapsrådet (VR) (2015-00535), 2016-01-01 -- 2025-12-31.

Ämneskategorier (SSIF 2025)

Atom- och molekylfysik och optik

Telekommunikation

Signalbehandling

DOI

10.1063/5.0239950

Mer information

Senast uppdaterat

2025-05-09