H - Electricity – 01 – S
Patent
H - Electricity
01
S
H01S 3/13 (2006.01) H01S 3/10 (2006.01) H01S 3/23 (2006.01) H01S 3/067 (2006.01)
Patent
CA 2057535
Disclosed is a fiber amplifier system including a gain fiber having a single-mode core containing dopant ions capable of producing stimulated emission of light at wavelength .lambda.s when pumped with light of wavelength .lambda.p. Absorbing ion filtering means is operatively associated with the gain fiber to alter the gain curve. If the absorbing ions are the same as the gain ions of the gain fiber, the system further includes means for preventing pump light from exciting the gain ions of the filtering means. The excitation prevention means may take the form of means for attenuating pump light. If the absorbing ions are different from the dopant ions of the gain fiber, such absorbing ions can be subjected to light at wavelength .lambda.p, but they will remain unexcited. Such absorbing ions can be used to co-dope the gain fiber, or they can be incorporated into the core of a fiber that is in series with the gain fiber.
Hall Douglas Warren
Newhouse Mark Andrew
Corning Incorporated
Gowling Lafleur Henderson Llp
LandOfFree
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