Erbium and ytterbium co-doped phosphate glass optical fiber...

Erbium doped optical fiber amplifier for automatically tracing a

Erbium-doped fiber amplifier and an optical fiber communication

Erbium-doped fiber amplifier and integrated module components

Erbium-doped fiber amplifiers with desired gain-bandwidth charac

Erbium-doped fiber optical amplifier

Erbium-doped fibre amplifier with shaped spectral gain

Erbium-doped optical fiber having gratings formed therein...

Evanescent-field optical amplifiers and lasers

Expandable wavelength-selective and loss-less optical add/drop s

Extended band erbium doped fiber amplifier

Fast optical amplifier control circuit

Fast power transient supression in constant power-mode...

Fast, continuously variable automatic gain control for...

Fault tolerant optical amplifier arrangement

Feedback-type optical fiber amplifier using hybrid pumping light

Fiber amplifier cascade for multiwavelength lightwave communicat

Fiber amplifier having a non-doped inner core and at least...

Fiber amplifier having an anisotropic numerical aperture for...

Fiber amplifier having efficient pump power utilization