Abstract
During the last three years the potential of mode-locked rare-earth-doped fiber lasers for ultrashort pulse generation has been explored and both passive and active mode-locking schemes have been demonstrated. Systems which use nonlinear polarization evolution in conjunction with an intracavity polarizer to provide the passive mode-locking mechanism have so far been demonstrated in ring1 (self-starting) and Fabry-Perot2 (self-sustaining) configurations, the latter of which employed, an intracavity bulk polarizer and modulator. Following the work published by Davey et al.2 we report a self-starting Fabry-Perot system capable of producing 1,6ps bandwidth-limited soliton pulses. We also show that the soliton pulsewidth in any of these configurations is ultimately limited by the dispersion-length product of the system, hence by careful choice of the fiber dispersion and fiber length the system should also he able to operate in the femtosecond regime3 The replacement of the two mirrors with fiber reflection gratings would make this configuration a truly all-fiber device.
© 1993 Optical Society of America
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