Multiple pass optical amplifier with thermal birefringence...

Multiple pulse generation

Multiple pumped fiber amplifiers for WDM communication systems w

Multiple stage optical fiber amplifier

Multiple stage optical fiber amplifier and signal generator

Multiple stage Raman optical amplifier

Multiple wavelength optical sources

Multiple wavelength optical sources

Multiple wavelength pumping of raman amplifier stages

Multiple window dense wavelength divison multiplexed...

Multiple-pass method and apparatus for laser amplification

Multiplexer for providing non-equidistant intervals between...

Multistage fiber-optic amplifier

Multistage optical amplifier having a fiber-based amplifier...

Multistage optical amplifier with gain control using pump ratio

Multistage optical amplifier with gain flattening

Multistage optical amplifier with Raman and EDFA stages

Multistage tunable gain optical amplifier

Multiwavelength pumps for raman amplifier systems