Broadband phase-coherent optical frequency synthesis with actively linked Ti:sapphire and Cr:forsterite femtosecond lasers

被引：30

作者：

Bartels, A ^{[1
]}

Newbury, NR ^{[1
]}

Thomann, I ^{[1
]}

Hollberg, L ^{[1
]}

Diddams, SA ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Boulder, CO 80305 USA

来源：

OPTICS LETTERS | 2004年 / 29卷 / 04期

关键词：

D O I：

10.1364/OL.29.000403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We link the output spectra of a Ti:sapphire and a Cr:forsterite femtosecond laser phase coherently to form a continuous frequency comb with a wavelength coverage of 0.57-1.45 mum at power levels of 1 nW to 40 muW per frequency mode. To achieve this, the laser repetition rates and the carrier-envelope offset frequencies are phase locked to each other. The coherence time between the individual components of the two combs is 40 mus. The timing jitter between the lasers is 20 fs. The combined frequency comb is self-referenced for access to its overall offset frequency. We report the first demonstration to our knowledge of an extremely broadband and continuous, high-powered and phase-coherent frequency comb from two femtosecond lasers with different gain media.

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收藏

页码：403 / 405

页数：3

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