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Employing a nanotube-based saturable absorber, we demonstrate a continuously tunable (1533–1563nm) ultrafast fiber laser, with output pulsewidth switchable between picosecond (1.2 ps) and femtosecond (610 fs) regimes.
We demonstrate a dual-wavelength, carbon nanotube mode-locked Er fiber laser. The laser outputs two wavelengths at 1549nm and 1562nm, and each wavelength corresponds to pulse duration of ∼1.3ps and repetition rate of ∼11.27MHz.
We fabricate double-wall carbon nanotube polymer composite saturable absorbers and demonstrate stable Q-switched and Mode-locked Thulium fiber lasers in a linear cavity and a ring cavity respectively.
We report an ultrafast fiber laser based on carbon nanotube saturable absorber. 84 fs pulses are generated directly from the fiber oscillator with 61.2 nm spectral width.
We mode-lock a fiber oscillator with cavity length of ~1500m using nanotubes, achieving 1.55ps pulses with pulse energy up to 63nJ at 134KHz repetition rate.
A Graphene-based saturable absorber is fabricated using wet chemistry techniques. We use it to passively mode-lock an Erbium doped fiber laser. ∼500fs pulses are produced at 1560nm with a 5.2nm spectrum bandwidth.
Dynamic nonlinear absorption of composite-type single-wall carbon nanotube saturable absorbers is characterized using both femtosecond and picosecond pump pulses. Results are compared with numerical simulations based on two commonly used saturable absorber models.
We demonstrate an ultrafast stretched-pulse fiber laser mode-locked by a carbon nanotube based saturable absorber. 123 fs pulses at 1.56 mum are generated with an output spectral width of 32 nm.
A widely tunable fiber ring laser, utilising a SWNT/polycarbonate film mode-locker and a 3-nm tunable filter, has been realized. 2.3 ps pulse generation over 27 nm spectral range is achieved for a constant pump power of 25 mW.
We fabricate a sub-ps erbium doped fiber laser using a carbon nanotube-polymer composite mode-locker. The spectral and pulse width data are analysed to evaluate the contribution of different physical process into ultra-short lasing.
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