Terms of Use & Disclaimer

Last updated: June 2026

Welcome to Photonica (photonica.io), a free reference resource for photonics engineering. By using this site, you agree to these terms. If you don’t agree, please don’t use the site.

Educational reference, not professional advice

Photonica provides explanations, equations, and reference values for educational and informational purposes. It is not engineering, design, safety, or professional advice, and it is no substitute for primary literature, manufacturer datasheets, qualified review, or your own measurements and judgment.

Optics and photonics work can involve high-power lasers, electrical hazards, and safety-critical systems. Do not rely on this site as the sole basis for any design, calculation, purchase, or safety decision. Always verify against authoritative sources and consult a qualified professional where appropriate.

No warranty

The content is provided “as is” and “as available,” without warranties of any kind, express or implied, including accuracy, completeness, fitness for a particular purpose, or non-infringement. While we aim to keep entries correct and well-sourced, we make no guarantee that the site is free of errors, omissions, or out-of-date information. If you spot a mistake, a note to hello@photonica.io is genuinely appreciated.

Limitation of liability

To the fullest extent permitted by law, Photonica and its operator will not be liable for any direct, indirect, incidental, consequential, or other damages arising from your use of, or inability to use, the site or its content, including any reliance on information found here.

Intellectual property

The original text, equations, figures, and organization of this site are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0). You are free to share and adapt the material for any purpose, including commercially, as long as you give appropriate credit, provide a link to the license, and indicate if changes were made. Third-party content (datasheets, quoted passages, figures from cited papers) is not covered by this license and remains the property of its respective owners.

External links

The site may link to third-party websites, datasheets, and references. We don’t control those sites and aren’t responsible for their content, accuracy, or availability. Links are provided for convenience and do not imply endorsement.

Changes

We may update these terms from time to time. Changes take effect when posted, and the date above will reflect the most recent revision. Continued use of the site means you accept the current terms.

Governing law

These terms are governed by the laws of the Commonwealth of Massachusetts, United States, without regard to its conflict-of-laws principles.

Contact

Questions about these terms? Email hello@photonica.io or see the contact page.