Unlike erbium-doped fiber amplifiers (EDFAs), which boost wavelengths in the 1530-1610 nm range, a Raman amplifier can increase the signal strength of any wavelength by pumping at 13THz more than ...

Fluorescence emission from some samples can overwhelm the Raman signal, making it difficult to obtain clear spectra. This limitation can sometimes be mitigated by using lasers with different ...

The modulation amplitude and DC offset of RF-driver (model 275, Conoptics) is adjusted to maximize the SRL signal. A large-area biased Si photodiode (75.4 mm 2, DET100A, Thorlabs) is used for ...