Sabanin, Artem Krivitsky, Leonid Paterova, Anna
Published in
Laser Physics Letters
We demonstrate the use of a nonlinear interferometer with bulk lithium niobate crystal for sensing of gas mixtures over broadband mid-infrared (mid-IR) range of wavelengths. Our method utilizes spontaneous parametric down-conversion to generate correlated photon pairs in the visible and mid-IR ranges. We show that by leveraging the phase-matching p...
Kobtsev, S Serebrennikov, K
Published in
Laser Physics Letters
It is quite well-known that coherence is an intrinsic property of laser radiation. However, after the advent of noise-like pulses, it turns out that the temporal coherence of their radiation is low and the electromagnetic field oscillations in adjacent noise-like pulses are not correlated. This work experimentally studies for the first time the deg...
Hu, Shuqi Liu, Jiajun Cheng, Guangling Zhong, Wenxue Zhang, Jiansong Chen, Aixi
Published in
Laser Physics Letters
We propose to utilize magnon Kerr nonlinearity to generate and control microwave–microwave Einstein–Podolsky–Rosen (EPR) steering in a cavity magnonic system consisting of two microwave cavities and an yttrium iron garnet (YIG) sphere, where the magnon mode in the YIG sphere is driven by an electromagnetic field. The results show that Kerr nonlinea...
Matveev, Lev A Sovetsky, Alexander A Matveyev, Alexander L Vitkin, I Alex Assaad, Maher Zaitsev, Vladimir Y
Published in
Laser Physics Letters
Speckle contrast (SC) parameters in optical coherence tomography (OCT) scans are formed by the interplay of several factors—local level of optical wave backscattering by the material inhomogeneities, parameters of spatial distribution of the latter and the degree of cumulative optical wave attenuation during its fourth-and-back propagation. For the...
Maletin, Nickolay V Eremenko, Anastasiia M Minaev, Dmitry V
Published in
Laser Physics Letters
This work demonstrates the fundamental possibility of solving quite large-scale problems of seismic data inversion on modern hybrid (quantum-classical) and quantum-inspired annealers using the example of a one-dimensional problem for a horizontally layered model of the medium in the acoustic approximation. The optimization problem for the residual ...
Zhu, R Z Hu, C D Wang, J C Wen, X Zhang, H B
Published in
Laser Physics Letters
In this paper, an efficient all fiber Tm-doped fiber amplifier which is backward-pumped with multi-mode laser diodes at 793 nm is reported. A maximum slope efficiency of 64.4%, a maximum output power of 35.5 W, a spectral signal to noise ratio of 66 dB and an ideal Gaussian beam profile are achieved. The results indicate that the implementation of ...
Hong, Wan-li Bai, Chen-ming Zhang, Su-juan Liu, Lu
Published in
Laser Physics Letters
In this paper, we study the properties of a set of quantum states. Based on these properties, we propose a multiparty semi-quantum key agreement (MSQKA) protocol. For the sake of clarity, we provide a three-party example to illustrate the protocol. Through rigorous security analysis, it is demonstrated that the proposed protocol can resist both ins...
Podoshvedov, Mikhail S Podoshvedov, Sergey A
Published in
Laser Physics Letters
The phase sensitivity of a Mach–Zehnder (MZ) interferometer with a two-mode squeezed vacuum (TMSV) probe state is studied. At the initial stage, the TMSV state is deterministically converted into two single-mode squeezed vacuum (SMSV) states, from each of which photons are subtracted via photon-number resolving measurement in auxiliary measurement ...
Ivanenko, A V Bednyakova, A E Smirnov, S V Rybak, A A
Published in
Laser Physics Letters
Introducing negative optical feedback into a semiconductor optical amplifier-based laser presents a straightforward and effective approach for generating high-repetition-rate pulses through the mechanism of self-sustaining cross-gain modulation. In this work, we demonstrate, for the first time, the tunability of high-frequency pulse generation over...
Zhang, Jingjing Yang, Feng Bo, Yong Gao, Hongwei Peng, Qinjun
Published in
Laser Physics Letters
Mid-infrared (MIR) laser of 3 μm are extremely valuable in many applications. A miniaturized compact intracavity optical parametric oscillator (OPO) based on a well-established 1 μm pump laser has achieved MIR radiation of 3.47 μm and 3 μm, respectively. The 3.47 μm idler laser with a maximum power of 3.65 W and the 3 μm with a maximum power of 3 W...
