Multi-wavelength generation by self-seeded four-wave mixing

Abstract

A cost effective method of generating multi-wavelength based on the cascaded four wave mixing effect is experimentally demonstrated. The proposed scheme is free from external tunable laser sources and pump modulators, resulting from the use of a broadened linewidth tunable dual wavelength erbium-doped fiber laser as intracavity pump. In this configuration, the number of four wave mixing cascades becomes larger in tandem with the increment of erbium-doped fiber amplifier output power. When its output power is set at 20.57 dBm, six waves having optical signal to noise ratio larger than 10 dB are generated. The six waves are stable with peak power fluctuations less than 1 dB within 30 minutes period and tunable with wavelength spacing ranging from 1.03 nm to 11.31 nm.

Nonlinearity Effect on Multiwavelength fiber laser based on Sagnac loop mirror interferometer

“…This stabilized peak makes the MWFL lasing lines appear flatter across the spectrum. The common nonlinear effects used are nonlinear polarization rotation (NPR) effect [11], four wave mixing effect [12], stimulated Brillouin scattering [13] and stimulated Raman scattering [14]. In this work, the NPR effect is used to achieve a stable and flat multiwavelength lasing.…”

Optimizing bandwidth of fiber optical parametric amplifier with different combinations of higher-order dispersion coefficient signs

“…The nonlinear effect of FWM has been utilized in many applications such as the parametric oscillators [1], FWMassisted lasers [2], FWM-cascaded [3], optical generators [4] and filter [5]. The ability of FWM effect to amplify a signal wave together with the generation of an idler wave made the effect convenient for those mentioned applications.…”

Stable and switchable single-longitudinal-mode dual-wavelength erbium-doped fiber laser based on a fiber ring filter

“…Switchable dual-wavelength single-longitudinal-mode (SLM) fiber lasers have attracted great attention for their extensive applications, in areas such as dense wavelength division multiplexing (DWDM) schemes [1], optical fiber sensors [2], microwave photonic generation systems [3], and spectroscopy analysis [4], because of their obvious advantages such as flexible laser output, narrow linewidth, high signal-to-noise ratio (SNR), system compactness, and long operating life [5].…”