Generation of cnoidal waves by a laser system with a controllable saturable absorber

Abstract

We demonstrate the cnoidal wave formation in a two-laser system with a saturable absorber in the cavity of one of the lasers. Another laser is used to activate the saturable absorber in order to control the pulse shape, width, intensity and frequency. Using the three-level laser model based on the Statz--De Mars equations, we show that for any value of the saturable absorber parameter there exists a certain modulation frequency for which the pulse shape is very close to a soliton shape with less than 5% error at the pulse base. Such a device may be prominent for optical communication and laser engineering applications.

Soliton generation using a fiber Bragg grating based on a Gires-Tournois interferometer

“…Another problem faced in the soliton generation is its low rate in a laser system, due to that the use of these devices in communications systems has been considered a bad idea. To solve this kind of problems exist in the literature new way to generate pulses with high repetition rates, one of these techniques is through high harmonic rate in mode locked fiber laser using a ring cavity [8][9][10]. In this work we show that using a FBGGTI, we can obtain soliton pulses using a "sech" profile apodization inside of the gratings that made part of the FBGGTI.…”

“…Many techniques have been designed to obtain this kind of pulses, between these techniques are active and passive mode-locked fiber lasers, ring fiber laser, and, in some cases, active and passive Q-switched fiber lasers [1][2][3][4][5][6][7][8]. Another problem faced in the soliton generation is its low rate in a laser system, due to that the use of these devices in communications systems has been considered a bad idea.…”

Stable Cnoidal Wave Formation in an Erbium-Doped Fiber Laser

“…The EDFL's relaxation frequency was around 28 kHz due to the applied pump power. As previously demonstrated, 9,10) depending on the relaxation frequency, certain modulation losses can be applied to the cavity through the EOM to produce cnoidal waves. Figure 2 shows the obtained cnoidal waves for the presented configuration.…”

Parabolic approximation in Kleinman's mechanical approach to laser spiking analysis

“…The Statz-De Mars equations' system has been widely used to model laser systems since its publication in 1960 (Aboites & Ramirez, 1989; Barrientos, Aboites, & Damzen, 1995;Statz & de Mars, 1960;Wilson & Aboites, 2013;Wilson, Aboites, Pisarchik, Pinto, & Taki, 2011;Wilson, Aboites, Pisarchik, Ruiz-Oliveras, & Taki, 2011). Originally designed to describe the oscillations in a maser, the model has since undergone many modifications to fit the description of laser systems (Aboites, Baldwin, Crofts, & Damzen, 1993;Aboites & Huicochea, 2010; E-mail address: antonio.sanchez@ece.buap.mx Peer Review under the responsibility of Universidad Nacional Autónoma de México.…”