A wavelength switchable passively harmonically mode-locked fiber laser with low pumping threshold using single-walled carbon nanotubes
Shum, Perry Ping
Date of Issue2010
School of Electrical and Electronic Engineering
We propose and demonstrate a wavelength switchable passively harmonically mode-locked fiber laser with low pumping threshold using single-walled carbon nanotubes (SWCNT). When the pumping power of 980 nm laser diode is 60 mW, passive mode-locking (PML) of a soliton erbium doped fiber laser at the 23rd harmonic of fundamental cavity frequency is experimentally observed at the central wavelength of 1530 nm. By only adjusting the polarization of laser in the cavity, another PML at the 13th harmonic is successfully achieved at 1554 nm. The supermode suppression (SMS) of each wavelength is larger than 30 dB. The pulses at 1530 nm are characterized in details with a repetition rate of 328.44 MHz, a transform-limited pulse width of 1.3 ps, and a timing jitter of 142.6 fs.
DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
IEEE photonics technology letters
© 2010 IEEE. This is the author created version of a work that has been peer reviewed and accepted for publication by IEEE Photonics Technology Letters, IEEE. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1109/LPT.2010.2045647].