In laser physics, the term laser oscillator is sometimes used for a laser device in order to distinguish it explicitly from an optical amplifier, where there is amplification by stimulated emission but no laser oscillation – or from an oscillator–amplifier combination.
A laser can be considered as a high-frequency optical oscillator (with optical frequencies normally be of the order of hundreds of terahertz) which consists of an optical amplifier and a resonator for optical feedback.
Similarly, an optical parametric oscillator is a device containing an optical parametric amplifier within an optical resonator. In contrast to a laser oscillator, one utilizes a kind of nonlinear amplification.
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; we would otherwise delete it soon. (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.