Gain Dependent Optimum Pulse Generation Rates of a Hybrid-Type Actively and Passively Mode-Locked Fiber Laser
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Hybrid Mode Locked Fiber Ring Laser
Mode locked pulse generation has been reported using both active and passive mode locking schemes. Active mode locking technique has been proven to be an effective way to generate high-repetition-rate pulses by incorporating a modulator inside the laser cavity. Compared to actively mode locked lasers, passively mode locked lasers can generate pulse train at ultrashort pulse width but with relat...
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Pulse-shortening and pulse broadening effects in passively mode-locked lasers are analysed. A steady-state pulse duration limit is calculated and compared with round-trip simulations. The numerical calculations apply to a picosecond N d : glass laser. Methods of short-pulse generation are discussed. PACS: 42.55R, 42.60D, 42.65 In passively mode-locked pulsed lasers the statistical spontaneous e...
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High repetition rate, picosecond laser sources are key elements for WDM/OTDM transmission, switching and photonic network systems. Active mode-locking is one of the main techniques for the generation of transform limited, high repetition rate, short pulse trains. It is particularly appropriate for applications that require precise timing synchronization between the optical and electrical signal...
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We present a novel method for the generation of synchronized short pulses at high repetition rates from Erdoped silica fiber lasers. The method employs coupling of an optical pulse train to a passively mode-locked fiber laser. The injected signal repetition rate is slightly detuned from the modal spacing of the fiber laser, such that a subset of the latter modes is injection locked, yielding a ...
متن کاملMultisoliton regime of pulse generation by lasers passively mode locked with a slow saturable absorber
The passively mode-locked laser1–5 has been a muchstudied device in recent years. Ultrashort-pulse generation in laser systems makes use of a variety of schemes, including figure-of-eight fiber laser design,1 fast saturable absorbers,4 additive-pulse mode locking,5 and nonlinear polarization rotation.6,7 The use of a semiconductor saturable absorber mirror8 with a relatively slow response time ...
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تاریخ انتشار 1998