Pump source with increased pump power for optical broadband...

Pumping light source having amplification-band extending...

Pumping light source unit, raman amplifier, and optical...

Pumping source having a number of pump lasers for Raman...

Pumping source having a plurality of regulated pump lasers...

Pumping source with a number of pumping lasers for the raman...

Raman amplification

Raman amplification apparatus and distributed raman...

Raman amplification control method, optical communication...

Raman amplification method and optical signal transmission...

Raman amplification method, Raman amplification pumping...

Raman amplification method, raman amplifier, and optical...

Raman amplification optical fiber, optical fiber coil, raman...

Raman amplification pumping module, Raman amplifier, and...

Raman amplification repeater

Raman amplification repeater and optical transmission system...

Raman amplification system utilizing bi-directional pumping

Raman amplification using a microstructured fiber

Raman amplifier

Raman amplifier