A paradigm shift in dual comb spectroscopy

Dual comb spectroscopy with a free-running semiconductor disk laser: a single free-running compact optically pumped MIXSEL simultaneously generates two coherent mode-locked pulse trains which are used to demonstrate accurate dual-comb gas spectroscopy with sub-millisecond acquisition times.

[420] S. M. Link, D. J. H. C. Maas, D. Waldburger, U. Keller
Download "Dual-comb spectroscopy of water vapor with a free-running semiconductor disk laser" (PDF, 583 KB)
Science, vol. 356, pp. 1164-1168, 2017 (DOI: external page 10.1126/science.aam7424)

Related news links:

ETH Zurich news
https://www.ethz.ch/en/news-and-events/eth-news/news/2017/05/one-laser-is-enough.html 
Download Download PDF German (PDF, 474 KB), Download PDF English (PDF, 463 KB)

Welt der Physik
external page http://www.weltderphysik.de/gebiet/technik/news/2017/eine-neue-bandbreite-von-anwendungen/ 
Download Download PDF German (PDF, 417 KB)

OSA – Optics & Photonics News 
external page http://www.osa-opn.org/home/newsroom/2017/may/one_semiconductor_laser_two_frequency_combs/?feed=News

Related links:

For more info on our prior work in optical frequency combs
http://www.ulp.ethz.ch/research/frequency-combs.html

For more info on our prior work on semiconductor disk lasers (e.g. MIXSELs and SESAM modelocked VECSELs)
http://www.ulp.ethz.ch/research/vecsel-mixsel.html

Cleanroom support at ETH Zurich:  FIRST - Center for Micro- and Nanoscience
http://www.first.ethz.ch

Financial support from Nano-tera.ch with the MIXSEL2 project
external page http://www.nano-tera.ch/projects/365.php