Erbium-doped fiber laser simultaneously mode locked on more than 24 wavelengths at room temperature.
We demonstrate simultaneous mode locking of more than 24 wavelengths at 3 GHz in an actively mode-locked erbium-doped fiber laser operating at room temperature. The multiwavelength operation is achieved when a frequency shifter and an all-fiber 50-GHz periodic filter are inserted into a ring cavity. Active mode locking is performed with an amplitude modulator, and pulses with a FWHM of 30 ps are obtained.
Centre d'Optique, Photonique et Laser, Université Laval, Québec G1K 7P4, Canada.
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Maran
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LaRochelle
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Besnard