Editorial Policy of the Encyclopedia

RP Photonics is strongly committed to providing accurate, neutral, helpful and accessible information on optics and photonics — mainly in the RP Photonics Encyclopedia, but also in related content such as the Photonics Spotlight (a blog) and our tutorials and case studies.

The purpose of our articles is to educate and support the community (students, researchers and other professionals in the field). They are not written to promote specific products or commercial interests. Where a page includes advertising, it is clearly labeled (see “Integration of Advertising” below).

Independence and Neutrality

All articles are carefully written to be technically correct and unbiased. For example, we do not promote any methods or devices in the interest of advertisers and always aim to present a balanced view, including strengths and limitations.

Conflicts of Interest

We welcome suggestions from readers and other stakeholders, including advertisers, but editorial decisions are made independently by RP Photonics. Any attempt to influence us, e.g. with financial incentives, would be rejected, but that basically never happens as everybody respects the standards of RP Photonics and the person RP.

RP Photonics offers software and consulting services in photonics. Where an article touches on our own products or services (for example, using images created with our simulation software), we avoid promotional claims within editorial content, except in clearly marked inserts placed therein.

It is conceivable that related interests of software or consulting customers of RP Photonics would create a conflict of interest. RP Photonics would in such cases always prioritize its goal to stay professionally sound, trustworthy and highly respected. In practice, such decisions are hardly ever required, since there are basically no attempts to influence us in problematic directions. Also, RP Photonics is not entangled with other companies beyond normal business relations, e.g. with advertisers.

Integration of Advertising

RP Photonics provides all these articles for free to the photonics community while observing strict privacy rules, allowing fully anonymous use of the resource. It finances these activities with advertising — but always in a clean and transparent way, not affecting the neutrality and trustworthiness of our articles:

The encyclopedia articles themselves contain only two types of promotional content:
- Suppliers section (sponsored): Where an article is related to a product category of the RP Photonics Buyer's Guide where we have at least one advertiser, near the end of the article we display a section titled “Suppliers”. This is clearly identified as sponsored content. It helps advertisers to get visibility for their products, while also serving readers, e.g. by giving examples of related equipment with images.
- Illustrative images: In a few cases, we include an illustrative image or graphic provided by a third party. Such figures are selected solely for educational value and are credited in the caption. Captions do not contain promotional statements, and figures from advertisers and non-advertisers are treated identically.
Display banners: Banners may appear in the right margin on sufficiently wide screens (on article pages, but outside the actual articles). Some are from our advertisers. These are clearly recognizable as advertising and are visually separated from article content.
No user data sold: Income is generated by selling our Advertising Package and by having sponsors for the RP Photonics Encyclopedia, but not e.g. by selling data of website users. (We never track any users in accordance with our strict privacy policy.)

Authorship and Expertise, Accuracy and Updates

So far, all content is authored by the photonics expert Dr. Rüdiger Paschotta (RP) personally. He is the founder and managing director of RP Photonics and is known worldwide for his technical/scientific expertise and his high professional standards.

Dr. Paschotta gives the quality and helpfulness of articles the highest priority. Therefore, he spends substantial time (for well over 20 years already) for continuously improving the articles; only in that way, the high quality has been reached. He is keen to correct any inaccuracies as soon as possible, but also to maximize the quality in many other respects (see below).

Quality Criteria

The most important criteria for developing the articles are the following:

All statements are technically and scientifically accurate, allowing users to trust the content and use it in professional work.
The coverage is well balanced, without favoring special interests.
The texts are as easy to understand and use as possible. That implies, for example:
- They give proper context (e.g. “Where is that relevant?”).
- They refer to other articles where appropriate, rather than explaining each detail again.
- Overly special aspects are omitted, as giving a good overview is most important.
- The texts are well structured, e.g. with headings and bullet points.
- The language is accurate but also clear and easy to understand.
Where appropriate, a bibliography is included, which primarily provides hints for useful additional reading, to a lesser extent caring about priority of work or proving statements.
The resources should be kept up to date with the latest scientific and technical knowledge.

It is of course impossible to ideally meet all criteria perfectly for a collection of well over 1000 detailed encyclopedia articles. However, RP Photonics strives to approach that ideal and to address any recognized shortcomings quickly.

Feedback from readers (in particular, through the comment and question boxes below articles) is welcomed and contributes to continuous improvement.

Use of AI Tools

We use AI tools as assistive instruments — for example, for collecting useful inputs, for literature discovery, language polishing, and cross-checks. AI outputs are treated as unverified input and are always carefully reviewed with human expertise. Final responsibility for all content rests with RP Photonics.