# Raicol Crystals: Nonlinear Crystals \& electro optic devices

> Raicol Crystals is a world leading manufacturer of high\-quality nonlinear optical crystals and electro\-optical components for laser systems\.

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## Pages
- [Products](https://raicol.com/products)
- [About us](https://raicol.com/about-raicol-crystals-ltd)
- [Accessibility statement](https://raicol.com/accessibility-statement)
- [Privacy Policy](https://raicol.com/privacy-policy)
- [Events](https://raicol.com/events)

## Posts
- [Engineering Polarization Entanglement: From Interferometers to Domain\-Engineered Crystals](https://raicol.com/engineering-polarization-entanglement): Quantum entanglement stands as one of the most profound and practically significant phenomena in modern physics\. In communication, entangled photons enable quantum key distribution schemes whose security is guaranteed by the laws of physics, rather than by assumptions about computational hardness\. In computation, large entangled states are what allow\.\.\.
- [Certifying Entanglement Beyond Classical Correlations](https://raicol.com/certifying-entanglement-beyond-classical-correlations): Imagine a box with two balls: one red, one blue\. Alice takes one ball to Mars and Bob takes the other to Andromeda\. The moment Alice opens her box and sees a blue ball: she instantly knows Bob's is red\. This might seem like what Einstein called "spooky action at a distance" \[1\], but it is not entanglement\. This is classical correlation\. The properties were fixed from the start\.
- [Advanced Electro\-Optic and Nonlinear Solutions by Raicol for Cutting\-Edge Photonics Research](https://raicol.com/advanced-electro-optic-and-nonlinear-solutions-by-raicol-for-cutting-edge-photonics-research)
- [Ultra\-Broadband Biphotons for Quantum OCT \- Chirped APKTP](https://raicol.com/ultra-broadband-biphotons-for-quantum-oct-chirped-apktp)

## Products
- [Ovens](https://raicol.com/product/quantum-components/ovens)
- [Heralded Single photon module \(Beta\)](https://raicol.com/product/quantum-components/heralded-single-photon-beta)
- [SppKTP Crystal](https://raicol.com/product/quantum-components/sppktp-crystal)
- [ppKTP Crystal](https://raicol.com/product/quantum-components/ppktp)
- [PPLN Crystal](https://raicol.com/product/quantum-components/ppln)

## Videos
- [Raicol Quantum](https://raicol.com/video/raicol_quantum)
- [Quantum PPKTP Crystals](https://raicol.com/video/quantum-ppktp-crystals)
- [About Raicol Crystasl](https://raicol.com/video/about-raicol-crystals)
- [LBO Super Polished Crystals](https://raicol.com/video/lbo-super-polished-crystals)

## Jobs
- [Supply Chain Manager](https://raicol.com/jobs/supplychain)
- [Grants \& R\&D Programs Manager](https://raicol.com/jobs/grants)
- [ עובד/ת מעבדה](https://raicol.com/jobs/lab)
- [ עובד/ת ייצור](https://raicol.com/jobs/production_floor)
- [מחלקת ציפוי \-  בודק/ת בדיקות איכות ויזואליות](https://raicol.com/jobs/qc)

## Functionality
- [DFG](https://raicol.com/functionality/frequency-conversion/dfg)
- [Phase Modulator](https://raicol.com/functionality/electro-optics-modules/phase-modulator)
- [SFG \- Sum Frequency Generation](https://raicol.com/functionality/frequency-conversion/sfg)
- [THG](https://raicol.com/functionality/frequency-conversion/thg)
- [OPO](https://raicol.com/functionality/frequency-conversion/opo)

## News
- [The physics Nobel Prize  celebrates the success of quantum entanglement](https://raicol.com/news/why-are-industrial-companies-switching-to-industrial-rtp-irtp-3)
- [Raicol Crystals Enables Breakthrough in Quantum Spectroscopy](https://raicol.com/news/raicol-crystals-enables-breakthrough-in-quantum-spectroscopy)
- [Japanese OXIDE Corporation acquired Israeli Raicol Crystals Ltd\.](https://raicol.com/news/why-are-industrial-companies-switching-to-industrial-rtp-irtp-4)
- [NASA establishes new laser system for space using Raicol Crystals’ RTP Q\-Switch](https://raicol.com/news/why-are-industrial-companies-switching-to-industrial-rtp-irtp-5)
- [Raicol Crystals is entering the world of quantum computing with a new collaboration with Qubitekk of CA, USA, and with funding of The BIRD Foundation\.](https://raicol.com/news/raicol-crystals-is-entering-the-world-of-quantum-computing-with-a-new-collaboration-with-qubitekk-of-ca-usa-and-with-funding-of-the-bird-foundation)

## Events
- [CLEO 2026](https://raicol.com/event/cleo-2026)

## Categories
- [Articles](https://raicol.com/category/articles)

## Tags
- [PPKTP](https://raicol.com/tag/ppktp)
- [BBO](https://raicol.com/tag/bbo)
- [LBO crystals](https://raicol.com/tag/lbo-crystals)
- [OPCPA](https://raicol.com/tag/opcpa)
- [SPDC](https://raicol.com/tag/spdc)

## Product categories
- [Frequency Conversion](https://raicol.com/products/frequency-conversion)
- [Quantum Components](https://raicol.com/products/quantum-components)
- [Electro optics modules](https://raicol.com/products/electro-optics-modules)

## Product tags
- [PPKTP](https://raicol.com/product-tag/ppktp)
- [RTP Crystal](https://raicol.com/product-tag/rtp-crystal)
- [crystal for quantum applications](https://raicol.com/product-tag/crystal-for-quantum-applications)
- [PPKTP Products](https://raicol.com/product-tag/ppktp-products)
- [RTP Products](https://raicol.com/product-tag/rtp-products)

## Functionality categories
- [Electro optics modules](https://raicol.com/functionality/electro-optics-modules)
- [Frequency Conversion](https://raicol.com/functionality/frequency-conversion)
- [Quantum Components](https://raicol.com/functionality/quantum-components)

## Optional
- [Sitemap index](https://raicol.com/sitemap_index.xml)