Abstract
ABSTRACT Wavelength tunable and ultra stable pulse generation at 10GHz is experimentally demonstrated using a non-PM, regeneratively mode-locked fiber ring laser. Less than 2.0 ps, nearly transform-limited, sech 2 -shaped pulses are directly generated with supermode noise suppression ratio over 70d B and RMS timing jitter value less than 162 fs. Dispersion management has been exploited in order to obtain the shor test pulse duration at 1.1ps. The mechanisms for the super-mode noise suppression are also discussed. Keywords: mode-locking, fiber laser, ultrashort pulse generation, regenerative 1. INTRODUCTION Owing to transform-limited pulse generation, few picoseco nds width, low timing jitter, wide wavelength tuning range, high output power, actively mode-locked erbium-doped fiber lasers can be desirable for crucial applications such as ultrahigh resolution optical sampling and eye diagram measurement [1], all optical logic gates [2] , ultrafast Optical Time Division Multiplexing (OTDM) system
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