Unioriental LBO Laser Crystal, 60 mm

Title: Premium Custom 60mm LBO Crystal 3x3x60 mm Unioriental w/Premium ECI AR Coating.

High-Efficiency SHG ~1005nm → 502.5nm (deep green/blue-green visible light)

Description:

Rare, pristine, unused custom Lithium Triborate (LiB₃O₅, LBO) nonlinear optical crystal – high

performance research-grade surplus from a closed lab. Manufactured by Unioriental Optics (China),

with premium custom U.S. anti-reflection coating by Evaporated Coatings, Inc. (ECI). This is an

exceptional piece for specialized frequency conversion.

Key Specifications:

• Dimensions: 3 mm × 3 mm clear aperture × 60 mm length (exceptional long interaction path for

superior conversion efficiency)

• Manufacturer: Unioriental (PO: JP-0052)

• Custom AR Coating: Applied by Evaporated Coatings, Inc. (ECI Job/Lot #7-2192 / 2193) –

high-quality dual-band coating optimized for low loss and high damage threshold

• Phase-Matching: Critical phase-matching (CPM) at near-room temperature; primary tuning via

angular/orientation adjustment in a rotatable mount

• Optimized for: Second-harmonic generation (SHG) ~1005 nm fundamental → ~502.5 nm

harmonic (deep green/blue-green)• Suitable for tunable sources ~1000–1010 nm (e.g., Yb-doped lasers, OPOs, or custom research

pumps)

Performance Highlights:

• The 60 mm interaction length enables outstanding SHG efficiency (>70–90% possible) even

with modest CW or high-rep-rate input powers – compensates for walk-off in CPM.

• Premium ECI coating maximizes transmission at fundamental/harmonic wavelengths.

• Critical phase-matching with angle tuning (rotatable mount recommended); mild temperature

stabilization optional for best stability.

• Pristine condition: Unused/new-old-stock, stored in original protective holder – no damage,

scratches, or inclusions.

Perfect for laser R&D, frequency doubling tunable Yb/thin-disk systems, spectroscopy, or custom

visible green sources. Long custom LBOs like this are rare on the surplus market and highly sought for

niche high-efficiency applications.

Condition: Excellent – flawless optics, from professional lab environment. Includes: Original plastic

holder/box with labels (photos show exact item). Shipping: Securely packaged with tracking &

insurance. Worldwide shipping (ITAR-free material). Payment: PayPal preferred; serious inquiries

welcome.

***MPN
***OEM Unioriental
***SKU*** 56051