Authors

M. Bagnell; J. Davila-Rodriguez; C. Williams;P. J. Delfyett

Comments

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Abbreviated Journal Title

IEEE Photonics J.

Keywords

Frequency combs; ultrafast measurements; mode-locked lasers; heterodyne; ABSOLUTE DISTANCE MEASUREMENTS; RESOLUTION; RANGE; LASER; Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

A frequency comb is used as a set of coherent local oscillators to downconvert and spectrally compress white light that has been periodically filtered by a Fabry-Perot etalon. Multiheterodyne detection allows white light spread across 100 GHz of optical spectrum to be compressed to 5 GHz of radio frequency (RF) bandwidth for electronic sampling on an oscilloscope. Correlations are observed at delays of up to 20 km with a minimum resolution of less than 1 mm. Calculations show that resolution may be easily increased by increasing etalon finesse and frequency comb bandwidth.

Journal Title

Ieee Photonics Journal

Volume

4

Issue/Number

2

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

504

Last Page

511

WOS Identifier

WOS:000302743600003

ISSN

1943-0655

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