Tunable wavelength filter with invariant transmission and...

Two stage optical amplifier

Two stage optical amplifier

Ultra-broadband low-noise gain-flattened rare-earth-doped...

Ultra-wide bandwidth fiber based optical amplifier

Ultrashort optical pulse amplifiers incorporating a gain medium

Use of OPA for switching and routing in WDM networks

Using gain tilt for local compensation of unwanted power...

Variable gain erbium doped fiber amplifier

Variable gain optical amplifier and control method

Variable optical gain equalizer and variable branching ratio...

Variable spectral width optical noise source

Wavelength dependent isolator

Wavelength division multiplexing optical amplifier with...

Wavelength tunable light source integrated with optical...

Wavelength-multiplexed light amplifying apparatus, optical...

Wavelength-multiplexed light amplifying apparatus, optical...

Wavelength-selective and loss-less optical add/drop multiplexer

Wavelength-selective optical amplifier

Wavelength-tunable amplified optical splitter