Er-doped fiber frequency comb with mHz relative linewidth.

A low-noise fiber frequency comb is demonstrated to improve the frequency accuracy and linewidth by suppressing the phase noise caused by the nonlinear self-phase modulation as well as the amplified spontaneous emission within the Er-doped fiber amplifier. The linewidth of the carrier-envelop- offset signal measures less than 1.9 mHz and the frequency stability well follows the reference Rb clock. This achievement will facilitate the use of the fiber frequency comb for industrial applications to precision near-infrared spectroscopy, frequency calibration, optical clocks and length metrology.

[1]  Jun Ye,et al.  Optical frequency comb with submillihertz linewidth and more than 10 W average power , 2008 .

[2]  N. Newbury,et al.  Elimination of pump-induced frequency jitter on fiber-laser frequency combs. , 2006, Optics letters.

[3]  Hirokazu Matsumoto,et al.  Long-term measurement of optical frequencies using a simple, robust and low-noise fiber based frequency comb. , 2006, Optics express.

[4]  H Matsumoto,et al.  Frequency metrology with a turnkey all-fiber system. , 2004, Optics letters.

[5]  K Feder,et al.  High power, single mode, all-fiber source of femtosecond pulses at 1550 nm and its use in supercontinuum generation. , 2004, Optics express.

[6]  Carsten Fallnich,et al.  Phase-locked carrier-envelope-offset frequency at 1560 nm. , 2004, Optics express.

[7]  Nathan R Newbury,et al.  Phase-locked, erbium-fiber-laser-based frequency comb in the near infrared. , 2004, Optics letters.

[8]  J W Nicholson,et al.  All-fiber, octave-spanning supercontinuum. , 2003, Optics letters.

[9]  Alfred Leitenstorfer,et al.  Amplified femtosecond pulses from an Er:fiber system: Nonlinear pulse shortening and selfreferencing detection of the carrier-envelope phase evolution. , 2003, Optics express.

[10]  Theodor W. Hänsch,et al.  Optical clockworks and the measurement of laser frequencies with a mode-locked frequency comb , 2001 .

[11]  Hermann A. Haus,et al.  Ultrashort-pulse fiber ring lasers , 1997 .

[12]  Jun Ye,et al.  Ultrasensitive spectroscopy, the ultrastable lasers, the ultrafast lasers, and the seriously nonlinear fiber: a new alliance for physics and metrology , 2001 .