Spectra of spontaneous Raman scattering in taper-drawn micro/nano-fibers |
Experimental setup. HNF: highly nonlinear fiber; SMF: single mode fiber; G: grating; MNF: micro/nano-fiber; LPF: long pass filter; CWDM: coarse wavelength division multiplexer; TF: tunable filter; SPD: single photon detector; L: lens. |