Optics Characterization Bundle for CW regime at 1070 nm
Use this bundle:
- to distinguish between optic ‘s front-, back-, and bulk absorption;
- to characterize homogeneity of absorptance of one optical surface;
- for characterization of absorption changes in time at a single point (Time-Scan);
- to provide “typical” absorption specifications for catalogs;
Our clients like it because it:
- provides a quick summary of parameters required to predict optics performance in multi kW CW laser systems;
- helps to understand the relation between heating, absorption, and damage performance;
- indicates LIDT worst-case scenario for two distinct failure modes, namely: defect-driven damage and cumulated heat.
Overview
The single test is sometimes not enough to get a full picture of optical element performance in the CW regime. First of all, the optical element can be damaged either due to “average” absorption of an optical element or “localized” absorption due to the defects; Secondly, the specified performance of the optical element can change even below the laser damage threshold: increased temperature can cause thermal lensing, wavefront deformations, etc. In a sense, the optical element will be functionally damaged and loses its intended specification without catastrophic damage. This testing package is created to help our clients to better understand the limiting factors of their optical elements. When optical elements are exposed to high average power CW laser irradiation.
what tests are included?
-
LIDT: large area raster scan test
Characterizes LIDT of localized sporadic defects (if any) randomly distributed over the sample surface;
Test parameters:
Wavelength: 1070 nm
Polarization: random
Scan area: 1 cm2Find out more › -
LIDT: 1 (Time=30s)-on-1 test
To Characterize LIDT of the optical element (surface of coating) in the dynamic equilibrium of incident and dissipating power;
Test parameters:
Wavelength: 1070 nm
Polarization: random
Pulse rep. rate: Single shot (30 s)Find out more › -
Low loss absorption measurement pack
To characterize absorption of front- (S1) and back (S2) surface, homogeneity and changes in time;
Test parameters:
Wavelength: 1070 nm
Polarization: Linear S or P
Test types included: L scan (S1+S2 ),
T scan (S1), T scan (S2)Find out more › -
Thermovisual measurement
To characterize surface temperature of irradiated optical element. Provides temperature dependence on power.
Test parameters:
Wavelength: 1070 nm
Polarization: random
Exposure time/test level: 30 s
Delay time between levels: 5 minFind out more ›
Need something else?
Explore more options Related tests
Show all-
"Classical"
Lifetime TestThis test is available at ps, fs pulse duration and @kHz repetition rates: allows to investigate LIDT, ageing and lifetimeread more -
ISO 1-on-1
LIDT test (21254-1,2)Single-shot technique for determination of “intrinsic” laser-induced damage threshold of coatings.read more -
ISO LIDT Certification Test (21254-1,3)This technique is designed to separate good and bad optics when end-use irradiation conditions are knownread more -
R-on-1
LIDT testTesting protocol, which provides preliminary information about the LIDT of the surface-limited samplesread more
