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We experimentally demonstrate an all-fiber optical parametric amplifier (OPA) for generating widely tunable 1.44–1.50 µm laser. The OPA is achieved by simultaneously injecting a continuous wave (CW) 1533.4 nm fiber laser and a tunable laser into a 2-km long highly nonlinear fiber (HNF). Idler wave of 1439.98 nm wavelength with low threshold of 13.62 mW and narrow bandwidth of 0.1 nm is obtained in...
Microwave signal generation by using the photonic beating from a phase-shift fiber Bragg grating (PS-FBG)-based dual-wavelength laser is proposed and experimentally demonstrated. The dual-wavelength laser is formed by a linear cavity, in which a PS-FBG is used as a dual-wavelength selective component. Transversal loading on the PS-FBG enhances the birefringence of the optical fiber and consequently...
The microchannelled chirped fibre Bragg grating (MCFBG) was fabricated using femtosecond laser processing and HF-etching. Intrinsical refractive-index sensitivity induced by the microchannel makes MCFBGs ideal for biochemical sensing.
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