abstract

• Q-switched and mode-locked (QML) pulse generation from an all-fiber ring laser based on intermodal acousto-optic bandpass modulation is reported. The modulator relies on full-acousto-optic mode re-coupling cycle induced by a standing flexural acoustic wave, with a transmission response that is controlled by amplitude modulation of the acoustic wave signal. The Q factor of the cavity is controlled by a rectangular pulse wave with variable frequency and duty cycle, whereas mode locking is achieved by amplitude modulation derived from a standing flexural acoustic wave. The best QML pulses were obtained at 0.5 kHz repetition rate, with a pump power of 549.2 mW, at the optical wavelength of 1568.2 nm. A maximum overall energy of 2.14 μJ at an average output power of 1.07 mW was achieved, corresponding to a burst of mode-locked sub-pulses of 100 ps pulse duration within a QML envelope of 3.5 μs. © 2018 Astro Ltd.

authors

• Andres M.V.
• Bello Jimenez Miguel Ángel
• Camarillo-Avilés A.
• Durán-Sánchez M.
• Garcia Ramirez M.A.
• Hernández-Escobar E.
• Ibarra-Escamilla B.
• López Estopier Rosa Elvia
• Pottiez O.

publication date

• 2019-01-01

funding provided via

• C18-FAI-05-35.35  Grant
• Consejo Nacional de Ciencia y Tecnología, CONACYT: 2438  Grant

published in

• Laser Physics  Journal

keywords

• acousto-optic modulation; fbre lasers; fbre optics; Q-switched and mode-locked Acoustic waves; Acoustics; Amplitude modulation; Laser mode locking; Locks (fasteners); Optical pumping; Pulse repetition rate; Q factor measurement; Q switching; Ring lasers; Acousto-optic modulations; Average output power; Mode-locked; Optical wavelength; Q-switching and mode-locking; Rectangular pulse; Transmission response; Variable frequencies; Mode-locked fiber lasers

Digital Object Identifier (DOI)

• 10.1088/1555-6611/aaed32

start page

end page

volume

• 29

issue

• 1