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Visible-Telecom Entangled Photon Pairs Could Support Quantum Communication

Visible-Telecom Entangled Photon Pairs Could Support Quantum Communication

A photon pair source that can bridge the visible and telecom bands could be useful for transporting quantum communications over optical fibers However, the optical components that store and process quantum information typically require visible-light phot

Light Is Dynamically Controlled in a Programmable Electro-Optic System

Light Is Dynamically Controlled in a Programmable Electro-Optic System

CAMBRIDGE, Mass , Jan 9, 2019 — An integrated photonics platform that can store light and electrically control its frequency in an integrated circuit is the newest development from the Harvard John A Paulson School of Engineering and Applied Sciences

One Laser, Six Entangled Modes

One Laser, Six Entangled Modes

A research team in Brazil has used an OPO to demonstrate the simultaneous entanglement of six optical modes in one cavity, using a single continuous-wave (CW) laser source

The Different Types of Laser

The Different Types of Laser

​The term laser stands for light amplification by the stimulated emission of radiation, and it means laser light is always monochromatic (of one specific wavelength) and is also spatially and temporally coherent

KTP FOR SHG (SECOND HARMONIC GENERATION)

KTP FOR SHG (SECOND HARMONIC GENERATION)

KTP (Potassium Titanyl Phosphate - KTiOPO4) is a nonlinear optical material commonly used for frequency doubling of Nd:YAG lasers and other Nd-doped lasers, particularly at a low or medium-power density

New materials extend laser spectral coverage deep into the infrared

New materials extend laser spectral coverage deep into the infrared

Advances in mid-IR nonlinear optical materials have led to low-loss, high-figure-of-merit crystals with broad transparency that greatly expand the wavelength coverage of highly engineered laser sources

Creating Precision Optical Components with Inkjet Printing

Creating Precision Optical Components with Inkjet Printing

NEUCHÂTEL, Switzerland, June 14, 2018 — Researchers at the Swiss Center for Electronics and Microtechnology (CSEM) have developed an inkjet printing technique that can be used to print optical components

Laser World of Photonics China 2018 returns to Shanghai in March

Laser World of Photonics China 2018 returns to Shanghai in March

Laser World of Photonics China — the biggest event for the Asian laser, optics and photonics industries — will be held March 14 to 16 at the Shanghai New International Expo Center More than 1000 exhibitors from all over the world are

Premier visits Institute of Crystal Materials Shandong University

Premier visits Institute of Crystal Materials Shandong University

Premier Li Keqiang visited Shandong University (SDU) in Jinan, capital city of Shandong province, on April 21

Cascaded, multi-harmonic generation yields all-solid-state deep-UV emission III

Cascaded, multi-harmonic generation yields all-solid-state deep-UV emission III

Our single-mode DUV setup is based on an injection-locked, Q-switched 1342 nm Nd:YVO4 ring laser with an average power of 13 9 W and 18 2 ns pulse duration at a pulse repetition frequency of 10 kHz 3 The pulse energy fluctuations are very low (

Cascaded, multi-harmonic generation yields all-solid-state deep-UV emission II

Cascaded, multi-harmonic generation yields all-solid-state deep-UV emission II

An all-solid-state, deep-UV light source alternative to excimer lasers is achieved through cascaded high-harmonic and sum-frequency generation of neodymium yttrium vanadate lasers—with the added bonus of high beam quality and stability

Cascaded, multi-harmonic generation yields all-solid-state deep-UV emission

Cascaded, multi-harmonic generation yields all-solid-state deep-UV emission

An all-solid-state, deep-UV light source alternative to excimer lasers is achieved through cascaded high-harmonic and sum-frequency generation of neodymium yttrium vanadate lasers—with the added bonus of high beam quality and stability

Innovation to Turn Standard Diode Laser into Single-Frequency Lasers

Innovation to Turn Standard Diode Laser into Single-Frequency Lasers

​Russian physicists have developed a technique for significantly narrowing the emission spectrum of a standard diode laser The research was published on October 26th in Nature Photonics and was co-authored by researchers from the Russian Quantum Center

Nonlinear crystal does supernarrow-linewidth frequency convers

Nonlinear crystal does supernarrow-linewidth frequency convers

Many applications in optical communications and scientific research require very narrow spectral linewidths What limits the width of a frequency converter? The spectral width of a nonlinear converter is usually thought to be inversely proportional to the

Frequency Tripling / Third Harmonic Generation

Frequency Tripling / Third Harmonic Generation

Third harmonic generation may be described as a process in which the frequency of a light source is tripled when it passes through a non-linear medium Third harmonic generation is a non-linear process of the third order, which generates a photon having t