| 摘要 |
<p>A method and apparatus for amplifying bandwidths of light energy propagated in an optical transmission waveguide in which a length of gain medium optical waveguide is coupled between spaced waveguide end sections defining amplifier input and output ports. The gain medium optical waveguide is preferably defined by an optical fiber core and cladding in which portions are formed of neodymium doped glass. The gain medium fiber is pumped by light energy in a spectrum absorbed by neodymium to provide light energy in wavelength regions including the bandwidth of interest. Noise resulting from the pumping light energy source, as well as spontaneous emission outside of the bandwidth of interest are filtered by dispersive lateral coupling of the gain medium optical fiber to the transmission waveguide.</p> |
