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1. 发明申请

WO2021245713A1 OPTICAL AMPLIFICATION APPARATUS FOR A SUBMARINE OPTICAL AMPLIFIER AND RELATED OPTICAL AMPLIFIER 审中-公开
公开(公告)号：WO2021245713A1
公开(公告)日：2021-12-09
申请号：PCT/IT2021/050168
申请日：2021-05-27
申请人： SUBPHOTON S.R.L.
发明人： ANDRONI, Daniele
IPC分类号： H01S5/042 , H02M3/156 , H02M1/0022
摘要： Optical amplification apparatus (1) for a submarine optical amplifier (90), the optical amplification apparatus (1) comprising an optical amplification system (2), comprising at least one active component (3), and a DC/DC converter (4) connected to supply the optical amplification system (2), 5 wherein the DC/DC converter (4) comprises a first commutator (5) and a pulse modulator (6) connected to the first commutator (5) for cyclically switching with a duty cycle the first commutator (5) between a closing configuration, in which it can be passed thought by a current, and an opening configuration, in which it cannot be passed thought by the current, 10 characterized in that the DC/DC converter (4) comprises a retroaction circuit (7) comprising: - a first differential amplifier (8) connected for receiving, at a first input port, a first signal (100) representative of at least a voltage at output from the DC/DC converter (4) and at input into the optical amplification system (2) and, at a second input port, a first 15 reference signal (201), the first differential amplifier (8) being structured for generating a first error signal (101) representative of a difference between the first signal (100) and the first reference signal (201); - a second differential amplifier (9) connected to the first differential amplifier (8) for receiving, at a first respective input port, the first error signal (101) and, at a second 20 respective input port, a second reference signal (201), the second differential amplifier (9) being structured for generating a second error signal (102) representative of a difference between the first error signal (101) and the second reference signal (201), wherein the second error signal (102) is proportional to a deviation of the voltage at output from the DC/DC converter (4) with respect to a nominal working voltage of the 25 optical amplification system (2), in that the first input port of the first differential amplifier (8) and the first respective input port of the second differential amplifier (9) are concordant ports, and in that the pulse modulator (6) is connected to the second differential amplifier (9) for receiving the second error signal (102) and for regulating the duty cycle as a function of the second 30 error signal (102).

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