In recent work published in #OPG_Optica, researchers from npldigital demonstrate that it is possible to keep a laser’s frequency extraordinarily steady using a room-temperature optical cavity, avoiding the complexity of cryogenic systems while still reaching near-record stability. Simpler, lower-maintenance ultrastable lasers can make top-level precision tools like optical clocks more practical for continuous operation and broader use. #FrequencyCombs #Photonics #UltrastableLaser