Two-dimensional coherent superposition of blue-shifted signals from an array of highly nonlinear waveguiding wires in a photonic-crystal fiber.
Frequency-shifted dispersive optical waves generated as a result of soliton dynamics of 30-fs Ti: sapphire-laser pulses in an array of waveguiding wires, implemented on a platform of a photonic-crystal fiber (PCF), are shown to produce regular stable interference patterns with high visibility, indicating a high coherence of frequency-shifted fields. For a hexagonal array of waveguides built into a silica PCF, the field intensity at the main peak of a six-beam interference pattern was found to be a factor of 22 higher than the intensity of a frequency-shifted signal from an individual waveguide in the array and 3.7 times higher than the field intensity attainable through an incoherent superposition of the same fields.
Hu
Ming-Lie
ML
Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin, PR China
Li
Yan-Feng
YF
Chai
Lu
L
Xing
Qirong
Q
Doronina
Lyubov V
LV
Ivanov
Anatoly A
AA
Wang
Ching-Yue
CY
Zheltikov
Aleksei M
AM
D003116:Color; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D008962:Models, Theoretical; D043942:Nanotubes / Q000737:chemistry*; D017711:Nonlinear Dynamics; D017785:Photons; D012542:Scattering, Radiation; D014159:Transducers