Optischer Breitbandverstärker und optische Breitbandsignalquelle mit variabler Wellenlänge
A wideband optical amplifier for amplifying an input optical signal of known wavelength in one of at least two bands of wavelength has a significantly small number of optical components and thus is low cost. The wideband optical amplifier includes: a first set of a first optical coupler, a first pum...
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| creator | KANOH, EIJI SHIOTA, KAZUNORI |
| description | A wideband optical amplifier for amplifying an input optical signal of known wavelength in one of at least two bands of wavelength has a significantly small number of optical components and thus is low cost. The wideband optical amplifier includes: a first set of a first optical coupler, a first pump light source, and a first erbium doped optical fiber (EDF) which is excited by the first pump light source; an optical switch for changing an output signal of the first set; and a second set of a second optical coupler, a second pump light source, and a second EDF which is excited by the second pump light source. The first set amplifies a first band of optical signal while a series connection of the first set and the second set amplifies a second band of optical signal. In another aspect, a wideband variable wavelength optical source is achieved by utilizing the wideband optical amplifier described above within a closed loop. |
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| subjects | BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION |
| title | Optischer Breitbandverstärker und optische Breitbandsignalquelle mit variabler Wellenlänge |
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