4Lasers manufactures precision optical components, crystals and assemblies. We keep cutting, grinding/chamfering, lapping/polishing, coating and metrology in one place under ISO-based quality controls. Deliverables include a Certificate of Conformance and, on request, interferometric and dimensional reports.
From raw materials to finished optics
Starting from raw substrates in optical glasses or laser crystals, we manufacture finished, inspection-ready components and assemblies. Processes are performed in-house for quality, schedule, and risk control.
- Precision cutting and grinding – diamond wire and wheel processes to establish geometry with low subsurface damage and tight dimensional control.
- Rounding and centration – diameter reduction, edge preparation, and centration to meet alignment and mounting requirements.
- Double-side and single-side polishing.
- Optical contacting and bonding – molecular optical contacting or adhesive/UV bonding when designs require high strength or different materials.
- Optical coatings — AR, HR, partial reflection, polarizing and beamsplitting coatings deposited in-house (IBS, IAD, e-beam); coating removal and re-polish available.
See Coating Services →
Materials
Substrates include fused silica, BK7 and equivalents, sapphire, CaF₂, MgF₂, BaF₂. Laser crystals include YAG, YVO₄, YLF, KGW/KYW and others on request.
Components we produce
- Windows and plates
- Wedges and prisms
- Lenses
- Mirrors and polarizers
- Crystal slabs and rods
- Custom shapes and assemblies
If your material or component is not listed, include your drawing when requesting a quote and we will confirm feasibility, tolerances, and lead time.
Rapid vs. Standard lead-time
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Rapid R&D / Repair: simple geometries, stocked materials, uncoated or standard AR; expedited metrology. As fast as 1–2 days when stock and fixtures allow.
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Standard Production: tighter specs, custom wedges/clear apertures, custom coatings, full QA package.
RFQ checklist
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Material + grade; starting geometry; target dimensions & tolerances (size, thickness, parallelism, flatness, S-D, clear aperture).
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Edge treatment (bevel/chamfer), wedge/angle, centering.
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Coating need (+ wavelength(s), AOI, polarization, LIDT target).
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Quantity, delivery target, application notes.
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Target delivery date.
Our dedicated and skilled team will ensure that you receive the optimal solution for your application.
Coating Services | Optical design & Engineering (for assemblies/tolerancing) | Ordering Info | Contacts
- Diameter and size: 1 – 180 mm
- Cutting tolernace: ±0.02 mm
- Diameter or size tolerance: up to +0/−0.02 mm
- Thickness tolerance: up to ±0.02 mm
- Parallelism: < 10 arcsec
- Surface flatness: up to λ/10 @ 632.8 nm (over stated CA)
- Centering (beam deviation): ≤ 3 arcmin
- Surface quality: 10-5 to 80-50 S-D
- Clear aperture: ≥ 90%
- Micro-dicing: down to 0.2 × 0.2 mm
- *Values are typical and application-dependent. Final specs are confirmed at quote and on the metrology report (method, clear aperture, reference wavelength included).