公开(公告)号：US20230223731A1

公开(公告)日：2023-07-13

申请号：US17707258

申请日：2022-03-29

Applicant: Lumentum Operations LLC

Inventor： Ali SALEHIOMRAN ,  Vlatko MILINKOVIC ,  Kim-Tuyen HOANG

IPC: H01S3/091 ,  H01S3/067 ,  H01S3/0941 ,  H01S3/094

CPC classification number: H01S3/0912 ,  H01S3/06754 ,  H01S3/0941 ,  H01S3/094003

Abstract: In some implementations, a device may apply a modulation to an electrical current to derive a modulated electrical current. The device may supply the modulated electrical current to an optical pump source for an optical amplifier to cause the optical pump source to emit light based on the modulated electrical current. The device may generate a signal based on an optical power of the light emitted by the optical pump source. The device may filter the signal with respect to a feedback signal that is to result from the modulated electrical current to derive a filtered signal. The device may process the filtered signal to identify whether the feedback signal is present in the filtered signal based on a power indicated by the filtered signal. Whether the feedback signal is present indicates a state of the optical pump source.

公开(公告)号：US20180084320A1

公开(公告)日：2018-03-22

申请号：US15630308

申请日：2017-06-22

Applicant: Lumentum Operations LLC

Inventor： John MARTINHO ,  Vlatko MILINKOVIC ,  Brian SMITH ,  Peter David ROORDA

IPC: H04Q11/00

CPC classification number: H04Q11/0005 ,  H04B10/5161 ,  H04B10/5165 ,  H04J14/0212 ,  H04Q11/0003 ,  H04Q2011/0015

Abstract: A programmable multicast switch may include a first set of optical ports and a second set of optical ports. The programmable multicast switch may include a plurality of groups of optical devices optically connected in a cascading arrangement. At least one optical device in each of the plurality of groups may be a tunable optical device. Each group may be connected to an optical port of the first set of optical ports. The programmable multicast switch may include a plurality of controllers to tune each corresponding tunable optical devices. The programmable multicast switch may include a processor to control the plurality of controllers. The programmable multicast switch may include a plurality of optical switches connected to each of the groups of optical devices. Each optical switch of the plurality of optical switches may be connected to an optical port of the second set of optical ports.

公开(公告)号：US20170168241A1

公开(公告)日：2017-06-15

申请号：US15152270

申请日：2016-05-11

Applicant: Lumentum Operations LLC

Inventor： Barthelemy FONDEUR ,  Jinxi SHEN ,  Leonid FRENKEL ,  Yimin HUA ,  David R. WALKER ,  Yu ZHANG ,  Vlatko MILINKOVIC

IPC: G02B6/293 ,  H04B10/25 ,  H04Q11/00

CPC classification number: G02B6/29353 ,  G02B6/29355 ,  G02B6/29395 ,  G02F1/0147 ,  G02F1/21 ,  G02F1/225 ,  G02F2001/212 ,  G02F2201/16 ,  G02F2203/055 ,  H04B10/2504 ,  H04J14/02 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0018

Abstract: A tunable PLC optical filter having sequentially connected thermally tunable Mach-Zehnder (MZ) interferometers is described. The cascade of MZ interferometers, each having a free spectral ranges matching ITU frequency grid spacing, are tuned so as to have a common passband centered on the frequency of the signal being selected, while having at least one of the stopbands centered on any other ITU frequency. Any other optical channel that may be present at any other ITU frequency is suppressed as a result. Another MZ interferometer in series with the cascade of interferometers including an asymmetric or variable coupler, is tuned to have low transmission at the center frequency of the selected optical channel.

公开(公告)号：US20190261070A1

公开(公告)日：2019-08-22

申请号：US16402543

申请日：2019-05-03

Applicant: Lumentum Operations LLC

Inventor： John MARTINHO ,  Vlatko MILINKOVIC ,  Brian SMITH ,  Peter David ROORDA

IPC: H04Q11/00 ,  H04J14/02 ,  H04B10/516

Abstract: A programmable multicast switch may include a first set of optical ports and a second set of optical ports. The programmable multicast switch may include a plurality of groups of optical devices optically connected in a cascading arrangement. At least one optical device in each of the plurality of groups may be a tunable optical device. Each group may be connected to an optical port of the first set of optical ports. The programmable multicast switch may include a plurality of controllers to tune each corresponding tunable optical devices. The programmable multicast switch may include a processor to control the plurality of controllers. The programmable multicast switch may include a plurality of optical switches connected to each of the groups of optical devices. Each optical switch of the plurality of optical switches may be connected to an optical port of the second set of optical ports.

公开(公告)号：US20160062208A1

公开(公告)日：2016-03-03

申请号：US14939123

申请日：2015-11-12

Applicant: Lumentum Operations LLC

Inventor： Barthelemy FONDEUR ,  Jinxi SHEN ,  Leonid FRENKEL ,  Yimin HUA ,  David R. WALKER ,  Yu ZHANG ,  Vlatko MILINKOVIC

IPC: G02F1/225 ,  G02B6/293 ,  G02F1/01

CPC classification number: G02B6/29353 ,  G02B6/29355 ,  G02B6/29395 ,  G02F1/0147 ,  G02F1/21 ,  G02F1/225 ,  G02F2001/212 ,  G02F2201/16 ,  G02F2203/055 ,  H04B10/2504 ,  H04J14/02 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0018

Abstract: A tunable PLC optical filter having sequentially connected thermally tunable Mach-Zehnder (MZ) interferometers is described. The cascade of MZ interferometers, each having a free spectral ranges matching ITU frequency grid spacing, are tuned so as to have a common passband centered on the frequency of the signal being selected, while having at least one of the stopbands centered on any other ITU frequency. Any other optical channel that may be present at any other ITU frequency is suppressed as a result. Another MZ interferometer in series with the cascade of interferometers including an asymmetric or variable coupler, is tuned to have low transmission at the center frequency of the selected optical channel.

Abstract translation: 描述了具有顺序连接的可热调谐的马赫 - 曾德（MZ）干涉仪的可调谐PLC光学滤波器。 每个具有与ITU频率格栅间隔匹配的自由频谱范围的MZ干涉仪的级联被调谐，以便具有以所选信号的频率为中心的公共通带，同时具有以任何其它ITU为中心的至少一个阻带 频率。 因此可能会抑制任何其他ITU频率出现的任何其他光信道。 与包括不对称或可变耦合器的干涉仪级联串联的另一MZ干涉仪被调谐为在所选择的光通道的中心频率处具有低传输。