Multiwavelength actively mode-locked fiber ring laser with suppressed homogeneous line broadening and reduced supermode noise
نویسندگان
چکیده
منابع مشابه
Actively mode-locked Raman fiber laser.
Active mode-locking of Raman fiber laser is experimentally investigated for the first time. An all fiber connected and polarization maintaining loop cavity of ~500 m long is pumped by a linearly polarized 1120 nm Yb fiber laser and modulated by an acousto-optic modulator. Stable 2 ns width pulse train at 1178 nm is obtained with modulator opening time of > 50 ns. At higher power, pulses become ...
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In a harmonically mode locked laser, the supermode noise peaks in the RF spectrum can be observed directly because they are separated from the driving frequency and its harmonics of the active mode locker. Using a simple theoretical model, we showed that the intensities of the supermode noise peaks will decrease if the coherence of the laser output decreases. We harmonically mode locked a Fouri...
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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...
متن کاملTheoretical analysis of actively mode-locked fiber ring laser with semiconductor optical amplifier
A theoretical study of active mode-locking fiber loop laser using semiconductor optical amplifier (SOA) was presented in this paper. The effects of linewidth broadening factor of SOA on active mode-locking were investigated originally. The relations between parameters of output pulse series and the critical parameters of SOA and other elements in fiber loop were obtained. 2002 Elsevier Science ...
متن کاملInjection-Seeded Actively Mode-locked Erbium-Doped Fiber Ring Laser for Frequency Measurement in Telecommunication Band
In this paper the mode-locking of an erbium-doped fiber ring laser with frequency shifted feedback is described. We use the configuration with an acousto-optical modulator inserted in the laser cavity that produces 1.7 ps pulses with a 40 MHz repetition frequency. The corresponding optical frequency comb has a bandwidth of more than 10 nm, centered at 1558 nm. The laser operates with external i...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2004
ISSN: 1094-4087
DOI: 10.1364/opex.12.004529