Buying Coherence Measurement Devices
Various types of instruments are suitable for measuring the temporal or spatial coherence of light, such as laser beams. These devices can measure quantities like coherence length, coherence time, or optical bandwidth, providing critical data for applications in optical communications and laser systems.
Making Good Purchase Decisions
RP Photonics helps to not only to find all relevant suppliers, but also to make good purchase decisions:
Learning Resources

With its comprehensive resources, RP Photonics helps you to well prepare purchase decisions:
- Encyclopedia article: coherence
- Related articles: coherence time, coherence length, linewidth, interference, laser speckle, coherent beam combining
Aspects to Consider Before Buying
Some aspects to consider before buying coherence measurement devices: type of coherence measurement, wide range of use cases, measurement accuracy, resolution, wavelength range, ease of use, compatibility with laser systems, data analysis capabilities, operational stability, software integration.
For responsible purchase decisions, we recommend applying good practices.
See also the application note on 12 Orders of Coherence Control from TOPTICA Photonics!

Find Suppliers for Coherence Measurement Devices
2 suppliers for coherence measurement devices are listed in the RP Photonics Buyer's Guide. Both manufacturers and distributors can be registered.
Suppliers with Advertising Package presenting their product descriptions | |
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![]() all wavelengths. TOPTICA Photonics AGLochhamer Schlag 19 82166 Gräfelfing Germany | ![]() The FALC pro is one of the latest locking modules of TOPTICA. Its high speed regulator allows to address even the most demanding applications, including laser driving ultra-narrow transitions utilized in optical clocks (clock transitions) or quantum computer (optical q-bits). TOPTICA’s brand new PFD pro is a broadband phase and frequency detector which generates an error signal from the phase and frequency difference between two lasers. It offers user friendly integration with TOPTICA lasers, control electronics and software. PFD pro enables a complete solution in which two lasers are phase locked to each other with an offset frequency which can easily be ramped or changed. |
Other Suppliers | |
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OptiConcepts Inc. United States |