Optical amplifier device
First Claim
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1. An optical amplifier apparatus comprising:
- an optical amplifier which amplifies an input signal light;
an output detecting unit which detects an unfiltered output level of said optical amplifier;
an output control unit which controls an output level of said optical amplifier according to an output level detected by said output detecting unit;
a gain inclination detecting unit which detects a gain inclination relating to a wavelength of said optical amplifier; and
a gain inclination control unit which controls a gain inclination of said optical amplifier according to a gain inclination detected by said gain inclination detecting unit.
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Abstract
The optical amplifier apparatus comprises an optical amplifier (3) which amplifies an input signal light, an output detecting unit (5) which detects an output level of the optical amplifier, an output control unit (6) which controls an output level of the optical amplifier according to an output level detected by the output detecting unit (5), a gain inclination detecting unit (7) which detects a gain inclination relating to a wavelength of the optical amplifier, and a gain inclination control unit (8) which controls a gain inclination of the optical amplifier (3) according to a gain inclination detected by the gain inclination detecting unit (7).
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Citations
20 Claims
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1. An optical amplifier apparatus comprising:
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an optical amplifier which amplifies an input signal light; an output detecting unit which detects an unfiltered output level of said optical amplifier; an output control unit which controls an output level of said optical amplifier according to an output level detected by said output detecting unit; a gain inclination detecting unit which detects a gain inclination relating to a wavelength of said optical amplifier; and a gain inclination control unit which controls a gain inclination of said optical amplifier according to a gain inclination detected by said gain inclination detecting unit. - View Dependent Claims (2, 3, 4, 5)
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6. An optical amplifier apparatus comprising:
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an optical amplifier which amplifies an input wavelength-multiplexed signal light; an optical variable attenuator which attenuates an output signal light of said optical amplifier; an output detecting unit which detects an output level at an output side of said optical variable attenuator; an output control unit which controls the attenuation of an output signal light attenuated by said optical variable attenuator according to an output level detected by said output detecting unit; a gain inclination detecting unit which detects a gain inclination relating to a wavelength of said optical amplifier; and a gain inclination control unit which controls a gain inclination by adjusting an output light of an excitation light source of said optical amplifier according to a gain inclination detected by said gain inclination detecting unit. - View Dependent Claims (7, 8, 9, 10)
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11. A method for controlling amplification of an optical signal, comprising:
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amplifying an input signal light using an optical amplifier; detecting an unfiltered output level of the amplified signal light; controlling an output level of the optical amplifier according to the detected unfiltered output level; detecting a gain inclination relating to a wavelength of the optical amplifier; and controlling a gain inclination of the optical amplifier according to the detected gain inclination. - View Dependent Claims (12, 13, 14, 15)
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16. A method for controlling amplification of an optical signal, comprising:
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amplifying an input wavelength-multiplexed signal light using an optical amplifier; attenuating the amplified signal light; detecting the attenuated signal light at an output side of an optical variable attenuator; controlling an attenuation value of the optical variable attenuator based upon the detected attenuated signal light; detecting a gain inclination relating to a wavelength of the optical amplifier; and adjusting an excitation light according to the detected gain inclination. - View Dependent Claims (17, 18, 19, 20)
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Specification