HIGHLY PRECISE 1-THZ OPTICAL FREQUENCY-DIFFERENCE MEASUREMENT OF 1.5-MU-M MOLECULAR ABSORPTION-LINES

Authors
NAKAGAWA K DELABACHELERIE M AWAJI Y KOUROGI M ENAMI T OHTSU M
Citation
K. Nakagawa et al., HIGHLY PRECISE 1-THZ OPTICAL FREQUENCY-DIFFERENCE MEASUREMENT OF 1.5-MU-M MOLECULAR ABSORPTION-LINES, Optics letters, 20(4), 1995, pp. 410-412
Citations number
15
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
20
Issue
4
Year of publication
1995
Pages
410 - 412
Database
ISI
SICI code
0146-9592(1995)20:4<410:HP1OFM>2.0.ZU;2-Y
Abstract
We demonstrate precise optical frequency-difference measurement of ace tylene (C2H2) absorption lines at 1.5 mu m. With an optical comb gener ator, the frequency difference between two lasers locked to saturated absorption dips of C2H2 rovibrational lines can be measured up to simi lar to 1 THz with a precision of better than 100 kHz. A precise freque ncy table of C2H2 1.5-mu m lines will be useful for frequency-division -multiplexed optical communication systems and high-resolution molecul ar spectroscopy.