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The design of materials for light harvesting applications or information display technique (switching or limiting laser radiation, electrically administered light scattering, enhancement of pixel response time, etc.) poses issues of employing matrices with lowered phase symmetry (gels, aggregated polymer coils in solutions, biaxial nematics, polymer network liquid crystals (PNLC)) as the milieu for...
Optoelectronic oscillator (OEO) has attracted great interest during the last two decades. Due to its excellent performance, OEO can find wide applications in many fields. However, general OEO cavities are sensitive to thermal fluctuation; this character could greatly deteriorate the long-term frequency stability of OEO. To solve this problem, thermal stabilization, injection-locking and phase-locked...
In this paper, we present an environmentally stable all-polarization-maintaining Erbium-doped Q-switched fiber laser based on WSe2-PVA as a saturable absorber. WSe2-PVA film is synthesized by liquid phase exfoliation. We let the fiber laser continue to work twelve hours, and we keep a record of the output power, optical spectrum, and frequency spectrum every thirty minutes. The results shows the stability...
Ultrashort pulse (USP) fiber lasers have become one of the most important instruments in various fields of science and industry during two past decades [1]. A number of applications requires stability of pulse duration, repetition rate and low intensity noise of an USP source. For example, stabilization of this parameters is in great demand in frequency metrology field, dual comb spectroscopy, THz...
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