All-passive phase locking of a compact Er:fiber laser system | Zendy

Günther Krauss | Zendy; David Fehrenbacher | Zendy; Daniele Brida | Zendy; Claudius Riek | Zendy; Alexander Sell | Zendy; R. Huber | Zendy; Alfred Leitenstorfer | Zendy

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All-passive phase locking of a compact Er:fiber laser system

Author(s) -

Günther Krauss,

David Fehrenbacher,

Daniele Brida,

Claudius Riek,

Alexander Sell,

R. Huber,

Alfred Leitenstorfer

Publication year - 2011

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.36.000540

Subject(s) - optics , fiber laser , materials science , femtosecond , laser , interferometry , dispersion shifted fiber , pulse duration , polarization maintaining optical fiber , optical fiber , physics , fiber optic sensor

A passively phase-locked laser source based on compact femtosecond Er:fiber technology is introduced. The carrier-envelope offset frequency is set to zero via difference frequency generation between a soliton at a wavelength of 2 μm and a dispersive wave at 860 nm generated in the same highly nonlinear fiber. This process results in a broadband output centered at 1.55 μm. Subsequently, the 40 MHz pulse train seeds a second Er:fiber amplifier, which boosts the pulse energy up to 8 nJ at a duration of 125 fs. Excellent phase stability is demonstrated via f-to-2f spectral interferometry.

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