High Power Narrow-Linewidth Fiber Laser Based on Double-Tapered Fiber

A homemade double-tapered Yb-doped fiber is employed in a high-power narrow-linewidth fiber amplifier to improve the thresholds of nonlinear effects and transverse mode instability (TMI) effect. A …

A New Monotonicity for Principal Eigenvalues with Applications to Time-Period…

A new monotonocity of principal eigenvalues in time-periodic patch environments is established. As an application, a patch model for two competing species in spatio-temporally varying environments …

Spectral Model of High-Power Ytterbium-Raman Fiber Amplifiers

In this work, we establish a comprehensive spectral model to realize effective design of high-power ytterbium-Raman fiber amplifiers (YRFAs) employing different types of Raman-pump lasers, and prop…

Evolution of Relative Intensity Noise in High-Power Narrow-Linewidth Fiber La…

In this work, we carry out a systematic study on the evolution of relative intensity noise (RIN) in a high-power narrow-linewidth fiber laser system based on phase-modulated single-frequency seed l…

Direct Sourcing or Agent Sourcing? Contract Negotiation in Procurement Outsou…

In a supply network consisting of a buyer, a purchasing agent, and a supplier, the buyer can procure the component from the supplier directly and rely on the purchasing agent for complementary serv…

Cyber-Physical Systems for Water Sustainability : Challenges and Opportunities

Research Phosphate Glass in Combination With Eu/Tb Elements on Turning Sunlig…