Application Notes & Resources

 

Relative Intensity Noise (RIN) Measurement

Semiconductor laser Relative Intensity Noise (RIN) is an important parameter that can cause significant degradation to the performance of fibre optic communications links. It is important for both laser manufacturers and systems designers to understand how RIN is measured to ensure reliable, accurate and repeatable results.

Relative Intensity Noise (RIN) Application Note 


 

Photonic Doppler Velocimetry

The velocity measurement of fast-moving materials is essential to several areas of scientific and technical investigations, and new applications will continue to be found.

Photonic Doppler Velocimetry Application Note  

An Overview of Wavelength Agile Photon Doppler Velocimetry  


 

Measuring Laser Linewidth

Low linewidth lasers are important for use in systems such as coherent communications, fiber optic sensors, interferometric sensing and gas detection. This application note covers the theory and importance of laser linewidth measurements, especially as they relate to low-linewidth lasers.

Measuring Laser Linewidth Application Note  


 

Hardware Triggering of Coherent Solutions’ PXI Optical Modules

PXI’s integrated timing and hardware triggering capabilities offer a number of advantages over more traditional software-initiated measurements. Learn how to make the best use of the hardware triggering capability present in Coherent Solutions’ PXIe photonics modules.

Hardware Triggering Application Note 


 

Transient Testing in PXI

Until recently, measurements of power versus time were only available using expensive oscilloscopes and optical-to-electrical converters. These solutions required complex synchronisation and suffered from poor power accuracy and dynamic range in addition to requiring extra equipment.

With the TRACE capability of the optical power meters from Coherent Solutions, you can now capture accurate time domain power meter readings over the entire range of the power meter (>70dB).

Transient Testing in PXI Application Note 


 

100G and 400G optical transceiver test configurations (video)

Defining and configuring a tightly integrated test system that can scale with the many SFP Application Codes of optical transceivers can be challenging. By selecting a flexible and future-proof test platform, many of the common challenges can be overcome. This in-depth video provides an overview of  100G and 400G transceiver test configurations using a PXI system.

100G and 400G optical transceiver test configurations