Cavity-enhanced sum-frequency generation of blue light with near-unity conversion efficiency

H Kerdoncuff, JB Christensen, TB Brasil, VA Novikov… - Optics …, 2020 - opg.optica.org
We report on double-resonant highly efficient sum-frequency generation in the blue range.
The system consists of a 10-mm-long periodically poled KTP crystal placed in a double …

Quantum frequency conversion for multiplexed entangled states generated from micro-ring silicon chip

YH Li, WT Fang, ZY Zhou, SL Liu, SK Liu, ZH Xu… - Optics express, 2018 - opg.optica.org
Silicon-on-chip photonic circuits are among some very promising platforms for generating
nonclassical photonic quantum state, because of its low loss, small footprint, and …

Extra-cavity-enhanced difference-frequency generation at 1.63 µm

C Yang, SL Liu, ZY Zhou, Y Li, YH Li, SK Liu, ZH Xu… - JOSA B, 2020 - opg.optica.org
A 1632 nm laser has highly important applications in interfacing the wavelength of rubidium-
based quantum memories (795 nm) and the telecom band (typically 1550 nm) by frequency …

Interference fringes in a nonlinear Michelson interferometer based on spontaneous parametric down-conversion

C Yang, ZY Zhou, LL Wang, Y Li, SK Liu, Z Ge… - Optics …, 2021 - opg.optica.org
Quantum nonlinear interferometers (QNIs) can measure the infrared physical quantities of a
sample by detecting visible photons. A QNI with Michelson geometry based on the …

12.6 W single-frequency continuous-wave 671 nm laser with an external second harmonic generation cavity

XC Liu, ZM Wang, YX Zhang, ZH Zhou… - Laser Physics …, 2020 - iopscience.iop.org
We present a high-power single-frequency continuous-wave (CW) 671 nm laser by the
second-harmonic generation (SHG) of a 1342 nm laser based on an external bow-tie …

The Multiparameter Measurement Technique in a Large-Aperture Rectangular Laser Beam Aberration Correction System

P Guotao, X Yu, W Wang, X Ni, D Dong… - IEEE Photonics …, 2022 - ieeexplore.ieee.org
Adaptive optics (AO) can effectively improve the beam quality of solid-state slab lasers.
However, the aperture of the output beam increases as the output power of the laser …

An Efficient Collinear FROG System to Character the Ultrafast Infrared Laser Pulse

S Liu, Y Cui, Z Zhou, E Karimi - 2021 Photonics & …, 2021 - ieeexplore.ieee.org
We realized one efficient collinear FROG system to measure the infrared ultrafast laser
pulse. The procedure, based on the type-II nonlinear crystal, allows measuring the SHG …