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In the birefringent fibers, pulse trapping occurs between orthogonally polarized pulses under the condition of group velocity matching. Using this phenomenon, the functions of amplification, shaping, and timing control can be obtained and all optical 3R control can be demonstrated. A large gain of 26 dB was confirmed for only 140 m of fibers. The ultrashort pulses are successfully generated from cw...
Long ring-cavity, all-polarization maintaining, Er-doped fiber laser using single wall carbon nanotube polyimide film was demonstrated. Output pulses with pulse energy of 0.7∼2.6 nJ were obtained at ultra low repetition rate of 943∼154 kHz.
Control of optical pulse at visible region is directly demonstrated using pulse trapping by soliton pulse in photonic crystal fibers. Wavelength of trapped pulse is continuously blue-shifted from 0.53 to 0.45 um by power control.
All-polarization maintaining Er-doped ultrashort soliton fiber laser using single wall carbon nanotube polyimide film and variable output coupler is constructed and investigated. A 580 pJ and 46 fs ultrashort pulse is generated after compression.
High-speed 3-dimensional measurement system is demonstrated using electronically controlled wavelength-tunable ultrashort pulse fiber laser and fiber interferometer. Clear images of metallic samples are obtained from a few meter long distance at speed of 1,000 points/s.
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