Towards compact and portable sub-kHz AlGaInP semiconductor disk lasers for cold atom experiments

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Stable lasers are crucial for experiments that target narrow atomic transitions (kHz down to Hz linewidth). Such transitions are used, for example, to cool and trap atoms in magneto-optical traps down to the μK regime, in particular for optical clock systems. In this context, semiconductor disk lasers (SDLs) have demonstrated great potential due to their spectral flexibility, high brightness, and low intensity and frequency noise. Here we report our recent progress in frequency stabilisation of an AlGaInP SDL designed for ultra-narrow linewidth at 689 nm for a strontium clock, achieving sub-kHz RMS frequency noise, relative to a reference Fabry-Perot resonator.
Original languageEnglish
Number of pages1
Publication statusPublished - 27 Jan 2018
EventSPIE Photonics West 2018: OPTO - The Moscone Center, San Francisco, United States
Duration: 27 Jan 20181 Feb 2018


ConferenceSPIE Photonics West 2018
Abbreviated titleSPIE Photonics West 2018
CountryUnited States
CitySan Francisco
Internet address


  • stable lasers
  • cold atom experiments
  • narrow atomic transitions

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