ISO LIDT Certification Test (21254-1,3)
This technique is designed to separate good and bad optics when end-use irradiation conditions are known. The procedure is fast and non-destructive for good optical elements.
Use this test for:
- Checking/certifying laser damage performance of the entire production batch;
- Check purchased optic’s quality before use in critical applications;
- Inspect whether optical element meets qualifications;
- Validation of optics lifetime predictions;
To perform the Pass/Fail certification test procedure several test sites (minimum – 1, typically – 10, best – as many as possible) are selected on the test area. Each of those sites is then interrogated with a fixed laser irradiation level. In case all test sites survive irradiation without damage sample is certified as good enough for further use. Otherwise, the component does not meet the specifications and cannot be used anyway.
Known limitations and risks:
- False-negative results are possible if optical element has low defect density (use raster scan instead);
- False-negative results are possible if there is a delayed fatigue effect (use extended irradiation dose if possible);
- No information about the actual LIDT;
Most popular test parameters for this test
|Wavelength||Pulse duration(1)||Repetition rate||Pulses per irradiation level|
|1064 nm||8-10 ns||100 Hz||1 000|
|532 nm||5 ns||100 Hz||1 000|
|355 nm||5 ns||100 Hz||1 000|
|Custom||Check all availability or configure your own at my.lidaris.com|
(1) effective pulse duration measured at Full Width Half Maximum
Check out all available testing capabilities. Identify your system in our “Available testing conditions” table.
Related testsShow all
LIDT testIt characterizes the worst-case scenario when it comes to large optics and defect-driven damageread more
Lifetime TestThis test is available at ps, fs pulse duration and @kHz repetition rates: allows to investigate LIDT, ageing and lifetimeread more
LIDT test (21254-1,2)The most popular technique used for laser-induced damage threshold (LIDT) characterization of laser optics.read more
LIDT testTesting protocol, which provides preliminary information about the LIDT of the surface-limited samplesread more
Test bundles and packagesShow all
Optics Characterization Bundle for CW regime at 1070 nmThe testing package consists of multiple tests, which are carefully selected to address optics characterization issues at the CW regime.
Lifetime + Certification Bundle for Industrial Grade fs-ps Laser OpticsThe package consists of several tests carefully selected to address optics certification for critical applications.
and useful information
Testing conditionsCheck out all available laser damage testing conditions (wavelengths, pulse regimes, environments, and more).
Laser Damage infobaseCheck out a useful glossary of terms and simple explanations related to the main topics of laser damage terminology.
Online Fluence calculatorCheck out a calculator equipped with laser-related calculus that is frequently required in practice: such as laser fluence.
Downloads and docsHere you can download all information about laser damage testing available at Lidaris.
New client guideHere you will find usefull guidlines and suggestions for everyone, who is new the laser damage field.
Orders FAQFast way to find out about test samples prepration, handling, and shipping.
Feel free to let us know if you have any concerns. We can always help you with choosing the right solution for your specific needs.