Optical amplifiers with a simple gain/output control device
Optical amplifiers with age-based pump current limiters
Optical amplifiers with stable output power under low input...
Optical amplifiers with variable optical attenuation for use...
Optical amplifying and relaying system
Optical amplifying apparatus
Optical amplifying apparatus
Optical amplifying apparatus
Optical amplifying apparatus
Optical amplifying apparatus
Optical amplifying apparatus capable of detecting at least one o
Optical amplifying apparatus for detecting break point in...
Optical amplifying apparatus for transmitting wavelength...
Optical amplifying apparatus which routes pumping light to a...
Optical amplifying apparatus, an optical output controlling...
Optical amplifying device
Optical amplifying device
Optical amplifying device
Optical amplifying fiber and forming method for fiber grating
Optical amplifying method