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Patent Agency Ranking
公开(公告)号：US10103513B1
公开(公告)日：2018-10-16
申请号：US15631594
申请日：2017-06-23
Applicant: Google Inc.
Inventor： Tao Zhang , Liang Du , Xiangjun Zhao , Changhong Joy Jiang , Cedric Fung Lam , Shuang Yin , Adam Edwin Taylor Barratt
Abstract: A method for biasing a tunable laser during burst-on and burst-off states through a common-cathode laser driving circuit includes delivering a bias current to an anode of a gain-section diode having a shared substrate with the laser, and receiving a burst mode signal indicative of a burst-on state or a burst-off state. When the burst mode signal is indicative of the burst-off state, the method includes sinking a sink current away from the anode of the gain-section diode. The sink current is less than the bias current delivered to the anode of the gain-section diode. When the burst mode signal transitions to be indicative of the burst-on state from the burst-off state, the method includes ceasing the sinking of the sink current away from the anode of the gain-section diode, and delivering an overshoot current to the anode of the gain-section diode to accelerate heating of the gain-section diode.
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公开(公告)号：US20180176666A1
公开(公告)日：2018-06-21
申请号：US15385726
申请日：2016-12-20
Applicant: Google Inc.
Inventor： Liang Du , Yut Loy Chan , Xiangjun Zhao , Changhong Joy Jiang , Cedric Fung Lam , Daoyi Wang , Tao Zhang
IPC: H04Q11/00
CPC classification number: H04Q11/0005 , H04J14/02 , H04J14/0287 , H04J14/08 , H04Q11/0067 , H04Q2011/0035 , H04Q2011/0052 , H04Q2011/0081
Abstract: A remote node includes a first node input, a second node input, and an optical switch. The optical switch includes a first switch input optically coupled to the first node input, a second switch input optically coupled to the second node input, a first switch output switchably coupled to the first switch input or the second switch input, and a second switch output switchably coupled to the first switch input or the second switch input. The remote node includes a photodiode optically coupled to the second switch output, and a capacitor electrically coupled to the photodiode and the optical switch. When the first switch input is switchably coupled to the first switch output, the second switch input is switchably coupled to the second switch output. Light received by the second switch input passes out the second switch output to the photodiode. The photodiode charges the capacitor to a threshold charge.
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公开(公告)号：US20180175935A1
公开(公告)日：2018-06-21
申请号：US15385696
申请日：2016-12-20
Applicant: Google Inc.
Inventor： Liang Du , Yut Loy Chan , Xiangjun Zhao , Changhong Joy Jiang , Cedric Fund Lam , Daoyi Wang , Tao Zhang
CPC classification number: H04B10/2503 , H04J14/0227 , H04J14/025 , H04J14/0282 , H04J14/0287 , H04J14/0291
Abstract: A carrier office includes an optical line terminal, a first transmit-erbium-doped fiber amplifier (EDFA), and a second transmit-EDFA. The OLT is configured to transmit first and second optical signals. The first transmit-EDFA is optically coupled to the OLT and a first feeder fiber, and the first feeder fiber is optically coupled to a first remote node (RN). The first transmit-EDFA is operable between a respective enabled state and a respective disabled state. The second transmit-EDFA is optically coupled to the OLT and a second feeder fiber, and the second feeder fiber is optically coupled to a second RN. The second transmit-EDFA is operable between a respective enabled state and a respective disabled state.
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公开(公告)号：US10063944B2
公开(公告)日：2018-08-28
申请号：US15385726
申请日：2016-12-20
Applicant: Google Inc.
Inventor： Liang Du , Yut Loy Chan , Xiangjun Zhao , Changhong Joy Jiang , Cedric Fung Lam , Daoyi Wang , Tao Zhang
IPC: H04Q11/00
CPC classification number: H04Q11/0005 , H04J14/02 , H04J14/0287 , H04J14/08 , H04Q11/0067 , H04Q2011/0035 , H04Q2011/0052 , H04Q2011/0081
Abstract: A remote node includes a first node input, a second node input, and an optical switch. The optical switch includes a first switch input optically coupled to the first node input, a second switch input optically coupled to the second node input, a first switch output switchably coupled to the first switch input or the second switch input, and a second switch output switchably coupled to the first switch input or the second switch input. The remote node includes a photodiode optically coupled to the second switch output, and a capacitor electrically coupled to the photodiode and the optical switch. When the first switch input is switchably coupled to the first switch output, the second switch input is switchably coupled to the second switch output. Light received by the second switch input passes out the second switch output to the photodiode. The photodiode charges the capacitor to a threshold charge.
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公开(公告)号：US10050708B2
公开(公告)日：2018-08-14
申请号：US15385696
申请日：2016-12-20
Applicant: Google Inc.
Inventor： Liang Du , Yut Loy Chan , Xiangjun Zhao , Changhong Joy Jiang , Cedric Fung Lam , Daoyi Wang , Tao Zhang
CPC classification number: H04B10/2503 , H04J14/0227 , H04J14/025 , H04J14/0282 , H04J14/0287 , H04J14/0291
Abstract: A carrier office includes an optical line terminal, a first transmit-erbium-doped fiber amplifier (EDFA), and a second transmit-EDFA. The OLT is configured to transmit first and second optical signals. The first transmit-EDFA is optically coupled to the OLT and a first feeder fiber, and the first feeder fiber is optically coupled to a first remote node (RN). The first transmit-EDFA is operable between a respective enabled state and a respective disabled state. The second transmit-EDFA is optically coupled to the OLT and a second feeder fiber, and the second feeder fiber is optically coupled to a second RN. The second transmit-EDFA is operable between a respective enabled state and a respective disabled state.
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