DESIOPTOE is a vertically integrated manufacturer that grows fluoride and doped-fluoride crystal materials in-house, supplies crystal blanks in custom sizes up to 500 mm, and delivers finished precision optical components including lenses, windows, prisms, wave plates, beam splitters, mirrors, filters, and wedges. Our fluoride crystal portfolio spans CaF₂, MgF₂, BaF₂, LiF, SrF₂, CeF₃, and LiYF₄, plus multiple doped variants.

Key Takeaways

• We grow CaF₂, MgF₂, BaF₂, LiF, and SrF₂ crystals in-house, and our catalog also includes CeF₃ and LiYF₄ along with doped crystals such as Nd:CaF₂, Yb:CaF₂, Tb:CaF₂, and Y:BaF₂.
• Our supply scope covers three tiers: raw crystal materials, cut-and-ground blanks (up to 500 mm with standard or custom crystal orientations), and finished precision optical components.
• Finished component types include lenses, windows, prisms, wave plates, beam splitters, mirrors, filters, and wedges — available in standard or custom specifications.
• We also manufacture fluoride coating target materials in CaF₂, MgF₂, BaF₂, LiF, LaF₃, and AlF₃.
• Pricing, lead times, LIDT values for most materials, and acceptance tolerances are project-dependent — confirm these details directly with our engineering team.
• Our crystal-growth technology originates from the Chinese Academy of Sciences Shanghai Institute of Ceramics, and we are a drafting body for China's national standard on UV-grade CaF₂ crystal.

How Does DESIOPTOE Define Its Three Supply Tiers — Crystal Materials, Blanks, and Finished Components?

We organize our deliverables into three distinct tiers so procurement teams can specify the correct product from the start.

Tier 1 — Crystal Materials. We grow fluoride crystal boules and raw crystal in-house. This tier includes both pure fluoride crystals (CaF₂, MgF₂, BaF₂, LiF, SrF₂) and doped fluoride crystals (Nd:CaF₂, Y:BaF₂, Tb:CaF₂, Yb:CaF₂, Eu:CaF₂, Eu:LaF₃).

Tier 2 — Crystal Blanks. We cut and grind crystal material to dimensional and orientation specifications. Our CaF₂ blanks support sizes up to 500 mm with (111), (001), or customer-specified crystal orientations.

Tier 3 — Finished Custom Optical Components. We polish, shape, and optionally coat elements into their final functional form. Component types include lenses, windows, prisms, wave plates, beam splitters, mirrors, filters, and wedges.

A fourth deliverable category — fluoride coating target materials — sits alongside these tiers, covering CaF₂, MgF₂, BaF₂, LiF, LaF₃, and AlF₃.

Each tier carries distinct specification requirements. Before initiating an RFQ, identify which tier your project requires — raw crystal, a dimensioned blank, or a finished optical element — to streamline the quoting process.

Which Fluoride Crystal Materials Does DESIOPTOE Grow In-House?

Our in-house crystal growth covers five primary fluoride materials: CaF₂, MgF₂, BaF₂, LiF, and SrF₂. Our product catalog also includes CeF₃ and LiYF₄ (YLF), plus additional materials such as AlF₃, PbF₂, and LaF₃.

On the doped-crystal side, we provide Nd:CaF₂, Y:BaF₂, Tb:CaF₂, Yb:CaF₂, Eu:CaF₂, and Eu:LaF₃. Specific doping concentration ranges and available sizes for doped crystals should be confirmed with our engineering team for each project.

Our crystal-growth technology originates from the Chinese Academy of Sciences Shanghai Institute of Ceramics, according to a Nantong Municipal Government report. We also co-operate a fluoride crystal joint laboratory with the Chinese Academy of Sciences, and we are a drafting body for the national standard on UV-grade CaF₂ crystal — a role that reflects both in-house growth capability and material-characterization depth.

Visit our Optical Materials page for the full material catalog.

What Blank and Substrate Formats Does DESIOPTOE Offer — and Where Do Dimensional Limits Require Project Confirmation?

We provide CaF₂ crystal blanks and optical elements in custom specifications up to 500 mm, supporting (111) and (001) standard crystal orientations as well as customer-specified orientations.

For rapid delivery, our recommended standard lens diameters are 100 mm, 80 mm, 75 mm, and 60 mm. These represent fast-turnaround stock sizes; other dimensions are available on a custom basis.

The processable fluoride crystal substrate materials for blanks include CaF₂, BaF₂, MgF₂, LiF, CeF₃, SrF₂, LaF₃, LiYF₄ (YLF), and doped fluoride crystals. We offer ultra-smooth surface, ultra-large aperture, ultra-low stress, and ultra-thin custom blanks and elements. Specific tolerances, surface-quality grades, and stress specifications are project-dependent — confirm these with our technical team.

Pricing, minimum order quantities, and lead times for blanks are not publicly listed and must be confirmed per project. Visit our Plate product page for flat substrate and blank examples.

What Finished Optical Components Can DESIOPTOE Deliver — and Where Do Machining, Polishing, and Coating Boundaries Apply?

We deliver finished optical components in eight categories: lenses, windows, prisms, wave plates, beam splitters, mirrors, filters, and wedges. All are available in standard or custom specifications.

Two application-specific examples illustrate our range:

Our precision optics business covers R\&D, production, and sales of high-precision optical components. Custom capabilities include ultra-smooth surfaces, ultra-large apertures, ultra-low stress, and ultra-thin profiles.

Coating target materials (CaF₂, MgF₂, BaF₂, LiF, LaF₃, AlF₃) are a confirmed product category. Whether specific AR or other thin-film coatings are applied in-house to finished components or sourced externally should be confirmed per project.

Do not assume that every fluoride material in our crystal catalog is available as a finished window or lens. For example, MgF₂ or LiF finished-window availability should be confirmed with our engineering team for the specific geometry and specification required. Acceptance-standard details — surface figure, scratch-dig, transmitted wavefront — are project-dependent. We recommend requesting a project-specific specification sheet during the RFQ process.

See our Lens and Prism product pages for deliverable examples.

How Do You Read Our Product-Scope Matrix Against Your Project Requirements?

The matrix below maps each fluoride material to the supply tiers we can confirm. Use it to identify which deliverables are documented and where you should contact our team for project-specific confirmation.

How to use this matrix: Find your material row, check which supply tiers show "Confirmed," and contact our team for any cell marked "Confirm with engineering." Cross-reference the matrix against key performance parameters — crystal aperture upper limits, transmittance curves, and LIDT — by requesting the relevant datasheet. LIDT data for materials other than CaF₂ is not publicly available and must be requested.

Visit our Infrared Measurement Window page for a real-world example that bridges the crystal material, blank, and finished component tiers.

What Documentation and Qualification Questions Should Procurement Teams Ask Any Fluoride Optics Supplier?

When evaluating any fluoride crystal supplier, procurement teams should verify whether the supplier has in-house crystal-growth capability, independent inspection equipment, and a complete quality management system certification. These factors distinguish an original manufacturer from a trader.

Request the applicable national or industry standard texts for the products in question, and confirm whether the supplier participated in drafting those standards. We are a drafting body for the UV-grade CaF₂ national standard. We hold ISO 9001 quality management system certification and ISO 14001:2015 environmental management system certification.

Cross-check the supplier's product brochure specifications — crystal aperture limits, transmittance curves, and LIDT — against your actual project requirements.

Supplier qualification checklist:

• Does the supplier grow crystals or purchase them?
• What is the maximum blank diameter available?
• Which crystal orientations are standard vs. custom?
• What inspection and metrology equipment is used?
• Can the supplier provide material certificates traceable to specific boules?
• What quality system certifications are current?

We also undertook a 2023 Shanghai integrated-circuit research assignment, which can serve as evidence of advanced material R\&D capability during supplier qualification.

How Does This Scope Guide Connect to Material Selection, Acceptance Criteria, and RFQ Preparation?

This article establishes what we manufacture and where supply-scope boundaries lie — the necessary first step before selecting a specific fluoride material for a given UV or IR application.

Subsequent guides in this series will cover:

1. How to select the right fluoride crystal material for a specific wavelength range and environment.
2. How to define acceptance criteria (surface figure, scratch-dig, transmitted wavefront, stress birefringence) for fluoride optical components.
3. How to prepare a complete RFQ that minimizes iteration.

Our business spans crystal growth, inspection, processing, and precision optics R\&D, production, and sales, meaning a single supplier relationship can cover multiple tiers of the supply chain.

FAQ

What fluoride crystal materials does DESIOPTOE manufacture in-house?

We grow CaF₂, MgF₂, BaF₂, LiF, and SrF₂ crystals in-house, and our product catalog also includes CeF₃ and LiYF₄. We additionally provide doped fluoride crystals including Nd:CaF₂, Y:BaF₂, Tb:CaF₂, Yb:CaF₂, Eu:CaF₂, and Eu:LaF₃. Our crystal-growth technology originates from the Chinese Academy of Sciences Shanghai Institute of Ceramics.

What is the difference between a fluoride crystal blank and a finished custom optical component?

A fluoride crystal blank has been cut and ground to a specified dimension and crystal orientation but has not undergone final optical polishing or shaping. A finished custom optical component — such as a lens, window, or prism — has been polished to optical-grade surface quality and shaped to its final geometry, and may include coatings. We supply both: blanks up to 500 mm with standard or custom orientations, and finished components including lenses, windows, prisms, wave plates, beam splitters, mirrors, filters, and wedges.

Does DESIOPTOE supply finished CaF₂ windows, lenses, and prisms, or only raw crystal blanks?

We supply both. Our CaF₂ short-wave infrared windows cover a working band of 0.2–10.5 μm with 92%–94% transmittance. We also provide CaF₂ blanks in custom sizes up to 500 mm. The full range of finished component types we produce includes lenses, windows, prisms, wave plates, beam splitters, mirrors, filters, and wedges.

What machining, polishing, and coating services does DESIOPTOE offer for fluoride optics?

Our precision optics business covers R\&D, production, and sales of high-precision optical components, with custom capabilities including ultra-smooth surfaces, ultra-large apertures, ultra-low stress, and ultra-thin profiles. We also manufacture fluoride coating target materials in CaF₂, MgF₂, BaF₂, LiF, LaF₃, and AlF₃. Whether specific thin-film coatings are applied in-house for a given project should be confirmed with our engineering team during the RFQ process.

Which fluoride materials — CaF₂, BaF₂, MgF₂, LiF, SrF₂ — does DESIOPTOE grow and process?

We grow all five — CaF₂, BaF₂, MgF₂, LiF, and SrF₂ — in-house, and we process these plus CeF₃, LaF₃, LiYF₄ (YLF), and doped fluoride crystals into blanks and optical components. Additional materials in our catalog include AlF₃ and PbF₂.

What technical information should buyers confirm before requesting a fluoride optics quote from DESIOPTOE?

Before submitting an RFQ, identify which supply tier you need (crystal material, blank, or finished component), the specific fluoride material, required dimensions and crystal orientation, surface-quality and figure tolerances, and any coating requirements. Cross-check our published specifications — aperture limits, transmittance curves — against your project needs, and confirm project-specific details such as LIDT requirements, acceptance standards, pricing, and lead times directly with our engineering team.

Are DESIOPTOE's fluoride crystal materials and optical components suitable for UV and IR system applications?

Yes. Our fluoride materials are suited to UV and IR applications due to their wide transmission ranges. Our CaF₂ short-wave IR windows cover 0.2–10.5 μm, and our BaF₂ long-wave IR windows cover 0.15–14 μm, both with 92%–94% transmittance. Specific suitability — including LIDT, environmental conditions, and coating requirements — depends on the application and should be confirmed with our team for each project.

Discuss Your Fluoride Optics Requirements with DESIOPTOE

Whether your project involves UV lithography, IR sensing, laser systems, or another precision optical application, our engineering team is ready to discuss your specific fluoride crystal, blank, or finished-component requirements.

Visit desioptoe.com to access product datasheets, request a project-specific specification sheet, or submit an RFQ.

This guide is the first in a series. Upcoming articles will cover material selection for specific wavelength ranges, acceptance criteria for fluoride optical components, and RFQ preparation — supporting your full procurement workflow from supplier screening through order placement.