Document Type

Article

Publication Date

Winter 2-1-2000

Publication Title

Optics Letters

ISSN

0146-9592

Volume

25

Issue

3

First Page

186

Last Page

188

DOI

10.1364/OL.25.000186

Abstract

The frequency-domain mode comb of a Ti:sapphire femtosecond laser centered at 350 THz is broadened to 150 THz (full width at −30 dBc) by self-phase modulation in a single-mode optical fiber. By phase locking continuous-wave lasers to elements of the comb near 1064 and 778 nm, we measure the 104-THz frequency gap between these two lasers with a relative uncertainty of 2.7×10−11 in 1 s.

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