Dual-Wavelength, Bidirectional Single-Wall Carbon Nanotube Mode-Locked Fiber Laser

A fiber ring laser with a carbon nanotube mode-locker that allows bidirectional oscillation is experimentally demonstrated in the L-band. Through leveraging a double-peak intracavity gain spectrum, two pulse trains in two nonoverlapping wavelength bands are shown to counter-propagate in the simple ring cavity. Ultrashort soliton pulses of \(\sim 800\) fs or less can be stably generated in both directions. It is also demonstrated that bidirectional operation within one of the wavelength bands can also be achieved with much smaller center wavelength separations by tuning the gain spectrum. The repetition rates of the two pulse trains have a slight difference due to the intracavity dispersion. Thus, the directional- and wavelength-multiplexed output from such a cavity-diversity-enabled ultrafast laser could potentially be leveraged in those applications requiring a dual-comb source.

[1]  J W Nicholson,et al.  Optically driven deposition of single-walled carbon-nanotube saturable absorbers on optical fiber end-faces. , 2007, Optics express.

[2]  Yudong Cui,et al.  Graphene and nanotube mode-locked fiber laser emitting dissipative and conventional solitons. , 2013, Optics express.

[3]  Ping Shum,et al.  Bidirectional passively mode-locked soliton fiber laser with a four-port circulator. , 2011, Optics letters.

[4]  Qing Ye,et al.  Tunable Multiwavelength Passively Mode-Locked Fiber Ring Laser Using Intracavity Birefringence-Induced Comb Filter , 2010, IEEE Photonics Journal.

[5]  N. Buholz,et al.  3.2 - Acoustic wave amplitude modulation of a multimode ring laser , 1967 .

[6]  Lei Liu,et al.  Switchable, dual-wavelength passively mode-locked ultrafast fiber laser based on a single-wall carbon nanotube modelocker and intracavity loss tuning. , 2011, Optics express.

[7]  Xueming Liu,et al.  Bidirectional fiber soliton laser mode-locked by single-wall carbon nanotubes. , 2013, Optics express.

[8]  Gong-Ru Lin,et al.  Kelly sideband variation and self four-wave-mixing in femtosecond fiber soliton laser mode-locked by multiple exfoliated graphite nano-particles , 2013 .

[9]  Wei Zhou,et al.  A stable polarization switching laser from a bidirectional passively mode-locked thulium-doped fiber oscillator. , 2013, Optics express.

[10]  D. Tang,et al.  Multi-wavelength dissipative soliton operation of an erbium-doped fiber laser. , 2009, Optics Express.

[11]  Masud Mansuripur,et al.  All-fiber bidirectional passively mode-locked ring laser. , 2008, Optics letters.

[12]  Zheng Zheng,et al.  Fast, asynchronous sampling distance ranging using an SOA gate and a dual-wavelength mode-locked fiber laser , 2013, 2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR).

[13]  Zheng Zheng,et al.  High-resolution absolute distance measurement using a dual-wavelength, dual-comb, femtosecond fiber laser , 2012, 2012 Conference on Lasers and Electro-Optics (CLEO).

[14]  Lei Liu,et al.  Fast, long-scan-range pump-probe measurement based on asynchronous sampling using a dual-wavelength mode-locked fiber laser. , 2012, Optics express.

[15]  Shinji Yamashita,et al.  Optical deposition of graphene and carbon nanotubes in a fiber ferrule for passive mode-locked lasing. , 2010, Optics express.