Frequency measurement of acetylene-stabilized lasers using a femtosecond optical comb without carrier-envelope offset frequency control
![NPL on Twitter: "We're hosting a one-day Laser Safety Workshop helping you to better understand the current BS & European Laser Safety Standards: https://t.co/eD4gflYFbk https://t.co/k1ctOhFo3m" / Twitter NPL on Twitter: "We're hosting a one-day Laser Safety Workshop helping you to better understand the current BS & European Laser Safety Standards: https://t.co/eD4gflYFbk https://t.co/k1ctOhFo3m" / Twitter](https://pbs.twimg.com/media/Dm9u68zX0AE_Kix.jpg)
NPL on Twitter: "We're hosting a one-day Laser Safety Workshop helping you to better understand the current BS & European Laser Safety Standards: https://t.co/eD4gflYFbk https://t.co/k1ctOhFo3m" / Twitter
CSIR National Physical Laboratory of India - F0032_4 The CSIR-NPL has developed a prototype device based on phosphor‐incorporated sapphire disc (PISD) on excitation by a blue laser diode produces highly-efficient white light.
![Comparing ultrastable lasers at 7 × 10−17 fractional frequency instability through a 2220 km optical fibre network | Nature Communications Comparing ultrastable lasers at 7 × 10−17 fractional frequency instability through a 2220 km optical fibre network | Nature Communications](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41467-021-27884-3/MediaObjects/41467_2021_27884_Fig2_HTML.png)
Comparing ultrastable lasers at 7 × 10−17 fractional frequency instability through a 2220 km optical fibre network | Nature Communications
![Comparing ultrastable lasers at 7 × 10−17 fractional frequency instability through a 2220 km optical fibre network | Nature Communications Comparing ultrastable lasers at 7 × 10−17 fractional frequency instability through a 2220 km optical fibre network | Nature Communications](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41467-021-27884-3/MediaObjects/41467_2021_27884_Fig1_HTML.png)