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We're seeing these used mostly in Nd:YAG laser cavities for surgical and ophthalmic systems where surface qualiy matters — 20/10 is on tighter end for this class, and most buyers actually specify 40/20 or 60/40, but for your imaging chain you'll want that cleaner polish.
The diameter tolerance of +/-0.1mm and length tolerance at +/-0.1mm are standard for this form factor, and surface figure is spec'd at lambda/10 which is roughly good enough for most resonator setups.
with the green Nd:YAG rods is they're prone to micro-cracking if the chamfer isn't handled right during grinding (the 'perfective chamfer' on these seems to be a standerd fine-ground edge, at least base on past batches we've received).
Our usual lead time for a 5-unit MOQ is about 20 days or so if they have the raw materail in stock, but confirm ahead if you need 2-500mm lengths because they batch that size seperately.
What it does is work as a laser gain medium rod for pulsed or CW operation, up to around 1.064-micron emission — not for ultra-high-energy pulsed use above about 50 J/cm² without proper thermal management.
Anyway, send over your specific diameter and length, plus any coating spec, and we'll confirm price and lead time from the factory.
20/10 surface quality means very low scratch and dig defects — 20 microns max scratch width and 10 microns max dig diameter. That's a high standard, ideal for medical and laser optics where clarity is critical.
Our MOQ is 5 units per order for this ND:YAG rod lens. We can't go below that, but we can combine sizes or coatings within the same order to meet the minimum.
Each lens is CE, ISO9001, and RoHS certified. We can provide test reports for surface quality, dimensions, and coating upon request — just specify when ordering.
Lead time is usually 2-3 weeks for custom coatings, depending on complexity and order volume. Standard uncoated lenses ship faster — around 7-10 working days.
Store them in a clean, dry environment at room temperature, preferably in anti-static packaging or individual foam slots. Avoid direct UV exposure or high humidity to preserve the coating and surface finish.
