Preprint article · Journal article
Engineering spectrally unentangled photon pairs from nonlinear microring resonators by pump manipulation
Department of Photonics Engineering, Technical University of Denmark1
Fiber Optics, Devices and Non-linear Effects, Department of Photonics Engineering, Technical University of Denmark2
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark3
Huawei Technologies Co., Ltd.4
The future of integrated quantum photonics relies heavily on the ability to engineer refined methods for preparing the quantum states needed to implement various quantum protocols. An important example of such states is quantum-correlated photon pairs, which can be efficiently generated using spontaneous nonlinear processes in integrated microring-resonator structures.
In this work, we propose a method for generating spectrally unentangled photon pairs from a standard microring resonator. The method utilizes interference between a primary and a delayed secondary pump pulse to effectively increase the pump spectral width inside the cavity. This enables on-chip generation of heralded single photons with state purities in excess of 99% without spectral filtering. (C) 2018 Optical Society of America
| Language: | English |
|---|---|
| Year: | 2018 |
| Pages: | 859-862 |
| ISSN: | 15394794 and 01469592 |
| Types: | Preprint article and Journal article |
| DOI: | 10.1364/OL.43.000859 |
| ORCIDs: | Christensen, Jesper Bjerge and Rottwitt, Karsten |
Atomic and Molecular Physics Heralded single photons Microring resonator Nonlinear process On-chip generation Optical Devices and Systems Optical pumping Optical resonators Photons Pumps Quantum Theory Quantum correlated Quantum photonics Quantum protocols Quantum theory Resonators Spectral filtering
