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About RIN or Relative Intensity Noise

What is RIN (Relative Intensity Noise) and how to measure it?

There are many definitions and ways of quoting RIN available in the industry. Many of these involve very technical calculations that have gotchas if not done carefully. SuperLight Photonics has created a whitepaper and a blog on this subject. The white paper is an easy-to-follow guide that explains how to measure noise in lasers and repeat the measurement of RIN for consistent results.

➡️ From RIN headache to understanding and total control: SuperLight Photonics saves the day and explains.

Why is RIN important and why is it so complicated to measure it correctly?

What is the correct way to measure RIN in lasers?

WHITEPAPER

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By Brad Smyder

​RIN  - Relative Intensity Noise  - values are crucial for measuring and enhancing the accuracy, reliability, and efficiency of photonics applications.

Achieving consistently low RIN levels remains a complex challenge, especially since measuring RIN itself is far from straightforward. Inconsistencies persist, and achieving reliable, repeatable results remains an ongoing challenge. The search for effective solutions is ongoing across the industry - SuperLight Photonics explains.

What will you learn from this whitepaper?

  • What is the correct way to measure RIN in lasers?

  • Two ways of measuring RIN with their benefits and limitations

  • Measuring RIN in Time Domain

  • ​Measuring RIN in Frequency Domain

  • Dos and don'ts for low noise light sources

  • Why implement stringent, reproducible and repeatable measurement procedures

INTERESTED?

We would be happy to explain Just send us an email.

The power of precision: how low noise light sources drive better performance

BLOG

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It is probably no surprise that brighter light brings significant advantages when it comes to high clarity and precision. But what are we talking about when we call light “noisy”, in particular when it concerns lasers?

What will you learn from this blog?

  • What is light noise?

  • What are noisy light sources?

  • ​3 types of noise explained

  • ​The impact of noise on applications

    • OCT​

    • HSI

    • Spectroscopy

    • Metrology

  • The importance of lower noise and lower RIN​

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By Cees  Links

The mathematics of the spectral RIN measurement for pulsed lasers

ARTICLE

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By Haider Zia

This document outlines in detail how SuperLight Photonics enables spectral domain measurements for RIN.

The method described can serve as a basis to clarify the RIN technique for pulsed sources in general and the justification for the spectral domain technique.

What will you learn from this article?

  • How to go from the time domain analysis to the equivalent in the spectral domain

  • ​Step-by-step guidelines to enable spectral domain measurements for RIN

  • Examples and detailed calculation methodology 

More Light  I  Better Insight
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