@article{11804, keywords = {pfc}, author = {D. Hudson and K. Holman and R. Jones and Steven Cundiff and Jun Ye and D. Jones}, title = {Mode-locked fiber laser frequency-controlled with an intracavity electro-optic modulator}, abstract = { We demonstrate a mode-locked, erbium-doped fiber laser with its repetition frequency synchronized to a second fiber laser via an intracavity electro-optic modulator (EOM). With servo control from the EOM (bandwidth ∼230 kHz) and a slower speed intracavity piezoelectric transducer (resonance at ∼20 kHz), we demonstrate stabilization of the repetition frequency with an in-loop rms timing jitter of 10 fs, integrated over a bandwidth from 1 Hz to 100  kHz. This represents what is to our knowledge the first time an EOM has been introduced inside a mode-locked laser cavity for fast servo action and the lowest timing jitter reported for a mode-locked fiber laser. © 2005 Optical Society of America}, year = {2005}, journal = {Optics Letters}, volume = {30}, pages = {2948}, month = {2005-11}, issn = {0146-9592}, doi = {10.1364/OL.30.002948}, }