Journal
OPTICS EXPRESS
Volume 20, Issue 13, Pages 13769-13776Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.013769
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Funding
- New Energy and Industrial Technology Development Organization (NEDO)
- Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST)
- Grants-in-Aid for Scientific Research [23244084] Funding Source: KAKEN
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We have developed an optical frequency comb using a mode-locked fiber ring laser with an intra-cavity waveguide electro-optic modulator controlling the optical length in the laser cavity. The mode-locking is achieved with a simple ring configuration and a nonlinear polarization rotation mechanism. The beat note between the laser and a reference laser and the carrier envelope offset frequency of the comb were simultaneously phase locked with servo bandwidths of 1.3 MHz and 900 kHz, respectively. We observed an out-of-loop beat between two identical combs, and obtained a coherent delta-function peak with a signal to noise ratio of 70 dB/Hz. (C) 2012 Optical Society of America
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