Longitudinal mode noise conversion by atomic vapour

A. P. Willis; A. I. Ferguson; D. M. Kane

doi:10.1016/0030-4018(95)00525-6

Longitudinal mode noise conversion by atomic vapour

A. P. Willis^*, A. I. Ferguson, D. M. Kane

^*Corresponding author for this work

Department of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

An external cavity diode laser with very low levels of amplitude noise is shown to have considerable amounts of frequency noise at the longitudinal mode spacing frequency. This noise is observed by tuning the laser near to resonance with an atomic vapour and measuring the transmission of the vapour with a photodiode. The measured noise is enhanced by more than two orders of magnitude at the longitudinal modespacing frequency by conversion of frequency noise to amplitude noise by the vapour. The frequency noise was also simulated using intracavity electro optic modulation.

Original language	English
Pages (from-to)	31-34
Number of pages	4
Journal	Optics Communications
Volume	122
Issue number	1-3
DOIs	https://doi.org/10.1016/0030-4018(95)00525-6
Publication status	Published - 15 Dec 1995

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abstract = "An external cavity diode laser with very low levels of amplitude noise is shown to have considerable amounts of frequency noise at the longitudinal mode spacing frequency. This noise is observed by tuning the laser near to resonance with an atomic vapour and measuring the transmission of the vapour with a photodiode. The measured noise is enhanced by more than two orders of magnitude at the longitudinal modespacing frequency by conversion of frequency noise to amplitude noise by the vapour. The frequency noise was also simulated using intracavity electro optic modulation.",

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N2 - An external cavity diode laser with very low levels of amplitude noise is shown to have considerable amounts of frequency noise at the longitudinal mode spacing frequency. This noise is observed by tuning the laser near to resonance with an atomic vapour and measuring the transmission of the vapour with a photodiode. The measured noise is enhanced by more than two orders of magnitude at the longitudinal modespacing frequency by conversion of frequency noise to amplitude noise by the vapour. The frequency noise was also simulated using intracavity electro optic modulation.

AB - An external cavity diode laser with very low levels of amplitude noise is shown to have considerable amounts of frequency noise at the longitudinal mode spacing frequency. This noise is observed by tuning the laser near to resonance with an atomic vapour and measuring the transmission of the vapour with a photodiode. The measured noise is enhanced by more than two orders of magnitude at the longitudinal modespacing frequency by conversion of frequency noise to amplitude noise by the vapour. The frequency noise was also simulated using intracavity electro optic modulation.

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