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Optics Letters

Optics Letters


  • Vol. 30, Iss. 7 — Apr. 1, 2005
  • pp: 789–791

Phase-noise properties of an ytterbium-doped fiber amplifier for the Laser Interferometer Space Antenna

Michael Tröbs, Peter Wessels, and Carsten Fallnich  »View Author Affiliations

Optics Letters, Vol. 30, Issue 7, pp. 789-791 (2005)

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Phase noise is a critical issue for the sensitivity of the interferometric gravitational-wave detector Laser Interferometer Space Antenna that requires laser sources with 1 W of output power. A low-power seed laser with a subsequent fiber amplifier is in discussion, and we report on spectrally resolved phase-noise measurements of an ytterbium-doped fiber amplifier emitting 1 W of output power from 10 mW of seed power. Phase-noise measurements for Fourier frequencies from 10^-4 Hz to 100 kHz show 60 rad/Hz^0.5 at 10^-4 Hz and 0.2 mrad/Hz^0.5 at 1 kHz. This measured excess phase noise is orders of magnitude below the free-running phase noise of nonplanar ring oscillators.

© 2005 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(270.2500) Quantum optics : Fluctuations, relaxations, and noise

Michael Tröbs, Peter Wessels, and Carsten Fallnich, "Phase-noise properties of an ytterbium-doped fiber amplifier for the Laser Interferometer Space Antenna," Opt. Lett. 30, 789-791 (2005)

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