Dual-comb techniques for precision measurement

Author

Coddington, I. ; Zolot, A.M. ; Giorgetta, F.R. ; Baumann, E. ; Swann, W.C. ; Newbury, N.R.

Author_Institution

Quantum Electron. & Photonics, NIST, Boulder, CO, USA

fYear

2012

fDate

1-6 July 2012

Firstpage

702

Lastpage

703

Abstract

Dual asynchronous comb techniques for precision measurement are coming of age. In spectroscopy such systems a can cover 42 THz of optical spectra with 100 MHz point spacing and signal to noise ratios (SNR) better than 3000. Careful examination of the systematic errors has begun and Doppler broadened molecular line centers can be determined reliably to within 200 kHz. In related systems dual and single comb calibrations of swept cw lasers can facilitate rapid (0.5 ms) distance measurement with sub-micron precisions off a diffuse target.

Keywords

distance measurement; fibre lasers; high-speed optical techniques; measurement by laser beam; spectroscopy; Doppler broadened molecular line center; diffuse target; distance measurement; dual asynchronous comb techniques; dual comb calibration; precision measurement; single comb calibration; swept continuous wave laser; systematic error; Distortion measurement; Fiber lasers; Frequency measurement; Measurement by laser beam; Optimized production technology; Photonics; Spectroscopy; Frequency combs; laser tuning; metrology; spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6251123

Filename

6251123