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公开(公告)号：US10218454B2
公开(公告)日：2019-02-26
申请号：US15457520
申请日：2017-03-13
Applicant: Google Inc.
Inventor： Vinayak Dangui , Vijayanand Vusirikala , Matthew Newland
Abstract: A reconfigurable optical add/drop multiplexer (ROADM) includes a plurality of interconnected ROADM blocks. Each ROADM block includes an ingress switchable-gain amplifier, an output power detector coupled to an output of the ingress switchable gain amplifier, and a wavelength-selective switch coupled to the output of the ingress switchable gain amplifier. Each ROADM block includes a plurality of add/drop blocks coupled to the wavelength-selective switches of the plurality of ROADM blocks. The ROADM includes a controller configured to receive an indication of an output signal power from the output power detector and adjust gain and equalization parameters of the ingress switchable-gain amplifier based on the received indication of the output signal power.
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公开(公告)号：US20180262292A1
公开(公告)日：2018-09-13
申请号：US15457520
申请日：2017-03-13
Applicant: Google Inc.
Inventor： Vinayak Dangui , Vijayanand Vusirikala , Matthew Newland
CPC classification number: H04J14/0212 , H04B10/2916 , H04B10/2941 , H04J14/021 , H04J14/0221 , H04Q11/0005 , H04Q2011/0016
Abstract: A reconfigurable optical add/drop multiplexer (ROADM) includes a plurality of interconnected ROADM blocks. Each ROADM block includes an ingress switchable-gain amplifier, an output power detector coupled to an output of the ingress switchable gain amplifier, and a wavelength-selective switch coupled to the output of the ingress switchable gain amplifier. Each ROADM block includes a plurality of add/drop blocks coupled to the wavelength-selective switches of the plurality of ROADM blocks. The ROADM includes a controller configured to receive an indication of an output signal power from the output power detector and adjust gain and equalization parameters of the ingress switchable-gain amplifier based on the received indication of the output signal power.
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