Optical frequency conversion of the GaSe-filled hollow-core fiber (IMAGE)

Science China Press

Optical frequency conversion of the GaSe-filled hollow-core fiber

Caption

(Top) Schematic of the hollow-core fiber device and the input fundamental mode LP01(ω) and output modes 1–4, including LP01(ω), LP11(2ω), LP21(2ω), and LP02(2ω). (Middle) Optical microscope images of the fabricated device. (Bottom) Power dependence and broadband response of the second-harmonic generation.

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