1/1.5 μm Synchronized Dual-Band Mode-Locked Fiber Laser

Abstract

A 1/1.5 μm dual-band mode-locked fiber laser is experimentally demonstrated. The laser is based upon an architecture in which the 1 μm and the 1.5 μm signals are generated in independent cavities that share the identical active fiber. The mode-locking of the 1 μm laser is realized via nonlinear polarization evolution (NPE), whilst the 1.5 μm laser is mode-locked through cross-phase modulation (XPM) induced by the 1 μm laser and the mode-locking is further stabilized by NPE. Synchronized dual-band modelocking operation is achieved using the laser.

Synchronously pumped 3.5μm mode-locked fiber laser

“…Synchronously pumped mode-locking technique is classified as a kind of active phase modulation mode-locking based on the cross-phase modulation effect [10][11][12][13][14] . Is requires a pulsed pump whose repetition rate matches to the fundamental frequency of the laser cavity, f0 = c/(2*L') for a linear cavity, while c is the velocity of light, L' is the optical path.…”