Power Density

Author: the photonics expert Dr. Rüdiger Paschotta (RP)

Definition: intensity or power per unit frequency interval

Category: article belongs to category optical metrology optical metrology

Page views in 12 months: 238

DOI: 10.61835/l5z Cite the article: BibTex plain text HTML Link to this page! LinkedIn

The term power density is sometimes used as a short form of power spectral density in the context of noise specifications. In other cases, it is meant to be an optical power per unit area, but optical intensity or irradiance is then a more appropriate term.

In order to avoid such confusion, it is recommended to avoid the use of this term altogether, unless the context makes clear which meaning is used.

More to Learn

Optical intensity

Irradiance

Optical power

Power spectral density

Noise specifications

Questions and Comments from Users

Here you can submit questions and comments. As far as they get accepted by the author, they will appear above this paragraph together with the author’s answer. The author will decide on acceptance based on certain criteria. Essentially, the issue must be of sufficiently broad interest.

Please do not enter personal data here. (See also our privacy declaration.) If you wish to receive personal feedback or consultancy from the author, please contact him, e.g. via e-mail.

By submitting the information, you give your consent to the potential publication of your inputs on our website according to our rules. (If you later retract your consent, we will delete those inputs.) As your inputs are first reviewed by the author, they may be published with some delay.