Multistaged stokes injected raman capillary waveguide amplifier

Details Multistaged stokes injected raman capillary waveguide amplifier Multistaged stokes injected raman capillary waveguide amplifier

H - Electricity

01

S

345/12

H01S 3/30 (2006.01)

Patent

CA 1131741

Abstract of the Disclosure A multistaged Stokes injected Raman capillary waveguide amplifier for providing a high gain Stokes output signal. The amplifier uses a plurality of optically coupled capillary waveguide amplifiers and one or more regenerative amplifiers to increase Stokes gain to a level sufficient for power amplification. Power amplification is provided by a multifocused Raman gain cell or a large diameter capillary waveguide. An external source of CO2 laser radiation can be injected into each of the capillary waveguide amplifier stages to increase Raman gain. Devices for injecting external sources of CO2 radiation include: dichroic mirrors, prisms, gratings and Ge Brewster plates. Alternatively, the CO2 input radiation to the first stage can be coupled and amplified between successive stages.

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