Intracavity mode locked laser magnetometer

✍ Scribed by Andreas Schmitt-Sody; Koji Masuda; Andreas Velten; Jean-Claude Diels

• Book ID: 104074314
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 327 KB
• Volume: 283
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2010.04.065

✦ Synopsis

Intracavity Phase Interferometry is applied to the detection of magnetic fields. A magnetic field induced change in index is converted into a beat frequency between two optical pulse trains. Because the detected frequency is not dependent on the pulse train intensities, a signal to noise improvement over standard amplitude measurements (for instance Faraday rotation) of at least a factor 1000 is achieved. The method applies to any magnetic detection method where the magnetic field can be converted into a change in refractive index.