4.6 Article

Frequency comb stabilization with bandwidth beyond the limit of gain lifetime by an intracavity graphene electro-optic modulator

Journal

OPTICS LETTERS
Volume 37, Issue 15, Pages 3084-3086

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.37.003084

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Funding

  1. National Nanotechnology Infrastructure Network (NNIN) at the Colorado Nanofabrication Laboratory
  2. National Science Foundation [ECS-0335765]
  3. Defense Advanced Research Projects Agency (DARPA) [YFA N66001-11-1-4156]

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Intracavity loss modulation enables offset-frequency control with bandwidths beyond what is possible by pump power modulation. To demonstrate this new method, we use a subwavelength thick graphene electro-optic modulator to stabilize the offset frequency in a Tm:fiber frequency comb at 1.95 mu m wavelength. Record-low residual phase noise of 144 mrads was achieved with this new locking scheme. (C) 2012 Optical Society of America

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