Numerical and experimental study on coherent combining of double cladding multi-core photonic crystal fiber
双包层多芯光子晶体光纤自相干合成的数值分析与实验

The supermodel mode field characteristics of double cladding multi-core photonic crystal fiber were analyzed with coupled-mode theory. Through the phase adjustment of evanescent wave on 7 beams of light, one can realize the coherent combination, by which the laser brightness is greatly enhanced. We analyzed and measured the coherent power density of the light emitted from the double cladding multi-core photonic crystal fiber using coherent combination theory, and provide the theoretical and experimental basis for this multi-core photonic crystal fiber to achieve self-coherent synthesis.