However, due to the limitation of the working bandwidth of the grating coupler, it is difficult to directly obtain the spectrum in the wavelength range of 1450nm~1650nm in a single measurement.
However, due to the bandwidth limitation of the grating coupler, it is difficult to directly obtain the spectrum within the wavelength range of 1450nm~1650nm in a single measurement.
However, due to the limitation of the working bandwidth of grating coupler, it is difficult to directly obtain the spectrum in the wavelength range of 1450nm~1650nm with a single measurement.