Measurement of frequency stability in tunable lasers by using an F-P interferometer

Abstract

A method for measuring the frequency stability of tunable laser is proposed by using confocal Fabry-Perot (F-P) interferometer. The F-P interferometer is used to get the output frequency of the laser as a reference, and the method eliminates the need of an independent optical source as a frequency reference. Using this technique, the frequency stability of the tunable external-cavity diode laser (ECDL) is measured to be 2.26×10⁻⁹ with an integration time of 20 ms.

Keywords

Frequency Stability / Tunable Laser / Allan Variance / Optoelectronic Oscillator / Quency Stability

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This work has been supported by the Tianjin Special Fund Project for Technology Innovation (No.10FDZDGX00400).