Optical fiber amplifier and optical transmission system...

Optical fiber amplifier and output power flattening method...

Optical fiber amplifier device and communications system...

Optical fiber amplifier for clamping and equalizing gain in...

Optical fiber amplifier having a gain flattening filter

Optical fiber amplifier having constant output power for...

Optical fiber amplifier having variable gain

Optical fiber amplifier using optical fiber having a portion...

Optical fiber amplifier with error correction

Optical fiber amplifier with reduced noise and method of...

Optical fiber gain medium with evanescent filtering

Optical fiber gain medium with wavelength selective core filter

Optical fibre amplifier and transmission system with optical fib

Optical filter for use or with an optical amplifier

Optical filter functioning as both a gain equalizer and...

Optical filter module and optical amplification using it

Optical filter, manufacturing method thereof, and optical...

Optical gain equalization unit, optical gain equalization...

Optical gain equalizer and optical fiber transmission line

Optical gain equalizer, and method for producing the optical...