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We experimentally demonstrate that a squeezed probe optical field can improve the sensitivity of the magnetic field measurements based on nonlinear magneto-optical rotation (NMOR) with an amplitude-modulated pump when compared to a coherent…

Quantum Physics · Physics 2023-07-19 Jiahui Li , Irina Novikova

Squeezed light constitutes a key resource for quantum optical technologies including quantum sensing, computing, communication and metrology. For many applications the generation of squeezed light typically requires at least two nonlinear…

We report the first coexistence experiment of 1550 nm single-mode squeezed states of light with a 1310 nm classical telecom channel over a 10 km fiber channel while measuring squeezing using a locally generated local oscillator. This is…

Quantum Physics · Physics 2023-05-05 Adnan A. E. Hajomer , Huy Q. Nguyen , Melis Pahalı , Ulrik L. Andersen , Tobias Gehring

Solid-state Spatial Light Modulators (SLMs) are fundamentally limited in their ability to achieve high spatial complexity and high temporal bandwidth simultaneously. High-speed, low-energy modulation requires sub-wavelength active mode…

Optics · Physics 2026-05-15 Virat Tara , Anna Wirth-Singh , Johannes E. Fröch , Arka Majumdar

We present the generation of continuous-wave optical squeezing from a titanium-indiffused lithium niobate waveguide resonator. We directly measure 2.9\pm 0.1 dB of single-mode squeezing, which equates to a produced level of 4.9\pm 0.1 dB…

Quantum Physics · Physics 2017-05-03 M. Stefszky , R. Ricken , C. Eigner , V. Quiring , H. Herrmann , C. Silberhorn

We report the experimental generation of squeezed light at 852 nm, locked on the Cesium D2 line. 50% of noise reduction down to 50 kHz has been obtained with a doubly resonant optical parametric oscillator operating below threshold, using a…

We report the generation of squeezed vacuum states of light at 1550 nm with a broadband quantum noise reduction of up to 4.8 dB ranging from 5 MHz to 1.2 GHz sideband frequency. We used a custom-designed 2.6 mm long biconvex…

Quantum Physics · Physics 2013-10-17 Stefan Ast , Moritz Mehmet , Roman Schnabel

The crucial zeroth-order light due to the pixelation effect of spatial light modulator (SLM) has been a serious issue in the field of light modulation, especially in applications with a high numerical aperture optical system. In this…

Optics · Physics 2023-01-30 Yueqiang Zhu , Kaige Wang , Jintao Bai , Wei Zhao

We present a method for full spatial phase and amplitude control of a laser beam using a twisted nematic liquid crystal display combined with a spatial filter. By spatial filtering we combine four neighboring pixels into one superpixel. At…

Optics · Physics 2009-11-13 E. G. van Putten , I. M. Vellekoop , A. P. Mosk

Achieving broadband on-chip optical amplification spanning the visible and near-infrared (NIR) can enable diverse quantum sensing, metrology, and classical communication applications within a single unified device. However, conventional…

Optical phased array (OPA) is a promising technology for compact, solid-state beam steering, with applications ranging from free-space optical communication to LiDAR. However, simultaneously achieving a large field of view (FOV), high…

Optics · Physics 2025-08-28 Yong Liu , Xiansong Meng , Hao Hu

We present a new approach for electronic control of optical tweezers by using space-time-wavelength mapping (STWM), a technique that uses time-domain modulation to control local intensity values, and hence the resulting optical force, in…

Optics · Physics 2016-04-20 Shah Rahman , Rasul Torun , Qiancheng Zhao , Ozdal Boyraz

Spatial light modulators are widely used to perform modulations of different properties of the electromagnetic field. In this work, a simple optimization method for general double-pass setups was developed. It takes into account the…

Optics · Physics 2022-02-09 Sebastián Bordakevich , Lorena Rebón , Silvia Ledesma

In quantum illumination, the signal mode of light, entangled with an idler mode, is dispatched towards a suspected object bathed in thermal noise and the returning mode, along with the stored idler mode, is measured to determine the…

Quantum Physics · Physics 2021-05-26 Ashwith Varadaraj Prabhu , Baladitya Suri , C. M. Chandrashekar

Continuous-wave squeezed states of light at the wavelength of 1550 nm have recently been demonstrated, but so far the obtained factors of noise suppression still lag behind today's best squeezing values demonstrated at 1064 nm. Here we…

A monochromatic double-mode coherent light endowed with orthogonally polarized photons propagating collinearly is studied in Degenerate Parametric Amplification. Generation of Hidden Optical- Polarized States is shown by non-zero values of…

Quantum Physics · Physics 2015-05-19 Gyaneshwar K. Gupta , Akhilesh Kumar , Ravi S. Singh

A highly efficient, practical approach to high-energy terahertz (THz) generation based on spectrally cascaded optical parametric amplification (THz-COPA) is introduced. The THz wave initially generated by difference frequency generation…

While the squeezing of a propagating field can, in principle, be made arbitrarily strong, the cavity-field squeezing is subject to the well-known 3 dB limit, and thus has limited applications. Here, we propose the use of a fully quantum…

Quantum Physics · Physics 2022-09-20 Wei Qin , Adam Miranowicz , Franco Nori

A noiseless linear amplifier (NLA) performs the highest quality amplification allowable under the rules of quantum physics. Unfortunately, these same rules conspire against us via the no-cloning theorem, which constrains NLA operations to…

Quantum Physics · Physics 2023-10-27 Joshua J. Guanzon , Matthew S. Winnel , Deepesh Singh , Austin P. Lund , Timothy C. Ralph

Using a traveling-wave OPA with two orthogonally oriented type-I BBO crystals pumped by picosecond pulses, we generate vertically and horizontally polarized squeezed vacuum states within a broad range of wavelengths and angles. Depending on…

Quantum Physics · Physics 2015-05-13 T. Sh. Iskhakov , M. V. Chekhova , G. Leuchs