A phase-stabilized carbon nanotube fiber laser frequency comb

Jinkang Lim, Kevin Knabe, Karl A Tillman, William Neely, Yishan Wang, R Amezcua-Correa, Francois Couny, Philip S Light, F Benabid, Jonathan C Knight, Kristan L Corwin, Jeffrey W Nicholson, Brian R Washburn

Research output: Contribution to journalArticlepeer-review

52 Citations (SciVal)


A frequency comb generated by a 167 MHz repetition frequency erbium-doped fiber ring laser using a carbon nanotube saturable absorber is phase-stabilized for the first time. Measurements of the in-loop phase noise show an integrated phase error on the carrier envelope offset frequency of 0.35 radians. The carbon nanotube fiber laser comb is compared with a CW laser near 1533 nm stabilized to the ν1 + ν3 overtone transition in an acetylene-filled kagome photonic crystal fiber reference, while the CW laser is simultaneously compared to another frequency comb based on a Cr:Forsterite laser. These measurements demonstrate that the stability of a GPS-disciplined Rb clock is transferred to the comb, resulting in an upper limit on the locked comb’s frequency instability of 1.2 × 10−11 in 1 s, and a relative instability of
Original languageEnglish
Pages (from-to)14115-14120
Number of pages6
JournalOptics Express
Issue number16
Publication statusPublished - Aug 2009


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