Double active-fiber optical amplifier having a wide-band...

Details Double active-fiber optical amplifier having a wide-band... Double active-fiber optical amplifier having a wide-band...

H - Electricity

01

S

345/12

H01S 3/094 (2006.01) H01S 3/067 (2006.01) G02B 6/28 (2006.01)

Patent

CA 2021801

The invention relates to an optical amplifier, in particular for optical fiber telecommunication lines (1), operating with a transmission signal in a predetermined wavelength range, which amplifier comprises a fluorescent active optical fiber (6) doped with erbium, having two cores (11 and 12, 101 and 102), one (11, 101) of which is connected to a fiber (4) in which a transmission signal to be amplified and a luminous pumping energy are multiplexed, and to an outgoing fiber adapted to transmit the amplified signal, whereas the second core (12, 102) is optically coupled to the first core and is capable of absorbing the spontaneous erbium emission which would constitute a noise source, allowing a signal to be amplified in a wavelength range substantially corresponding to the tolerance range of the commercially available signal laser emitters.

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