Custom · 4 min read

From Drawing to Delivered Optic: How Build-to-Print Works at Tower

Four steps, one business day to a quote. What actually happens between your PDF and the finished optic.

Every custom optic ships with the test data behind it — interferograms, transmission curves, and a certificate of compliance. ISO 9001:2015 and SAE/AS9100 processes mean the paperwork your quality team expects is there by default.

4. Documentation

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Waveplates 6 min

Zero-Order vs. Multiple-Order Waveplates: How to Choose

Both change the polarization of light. Only one stays accurate when your lab warms up. Here is the difference in plain terms.
Waveplates 4 min

Why Air-Spaced Waveplates Win for Lasers

Cemented plates can delaminate. Contacted plates drift. Air spacing removes both failure modes — and improves alignment accuracy.
Waveplates 5 min

Achromatic Waveplates: Polarization That Ignores Wavelength

Tunable laser or wide spectrum? A single material can't hold retardation across hundreds of nanometers. Two materials can.