公开(公告)号：US08867913B2

公开(公告)日：2014-10-21

申请号：US13633173

申请日：2012-10-02

Applicant: Ciena Corporation

Inventor： Sebastien Gareau ,  Tim Norman ,  Richard Wyatt ,  Michael Hubbard

IPC: H04J3/16

CPC classification number: H04J3/1652 ,  H04J3/1664

Abstract: Optical Transport Network (OTN) High Order (HO) mapping systems and methods utilize pointer processing to map one HO signal into another similarly sized HO signal. An OTN HO mapping method and circuit include receiving a first HO signal at a first rate, asynchronously mapping the first HO signal into a second HO signal at a second rate, wherein the first rate and the second rate are substantially similar, translating a portion of overhead from the first HO signal to overhead of the second HO signal, utilizing pointers in the overhead of the second HO signal for frame alignment of the first HO signal, and transmitting the second HO signal containing the first HO signal.

Abstract translation: 光传输网络（OTN）高阶（HO）映射系统和方法利用指针处理将一个HO信号映射到另一个类似大小的HO信号。 OTN HO映射方法和电路包括以第一速率接收第一HO信号，以第二速率异步地将第一HO信号映射成第二HO信号，其中第一速率和第二速率基本相似，将一部分 从第一HO信号到第二HO信号的开销的开销，利用第二HO信号的开销中的指针用于第一HO信号的帧对准，以及发送包含第一HO信号的第二HO信号。

公开(公告)号：US20240259096A1

公开(公告)日：2024-08-01

申请号：US18326818

申请日：2023-05-31

Applicant: Ciena Corporation

Inventor： Priyanth Mehta ,  Darwin Evans ,  Michael Hubbard ,  Robert W. Keys

IPC: H04B10/079 ,  H04Q11/00

CPC classification number: H04B10/0795 ,  H04Q11/0062 ,  H04Q2011/0086

Abstract: Systems and methods for optimization of spectrum sharing in optical line systems include, for at least one fiber having optical spectrum being shared by at least two users in an optical line system, assigning value to the optical spectrum; determining using a policy and the assigned value of the optical spectrum how to partition the optical spectrum between the at least two users; and causing implementation of the partition of the optical spectrum. The assigned value of the optical spectrum can be based on information carrying capacity in bandwidth per second. The assigned value of the optical spectrum accounts for performance versus frequency, such that, e.g., two or more of the at least two users have different amounts of the optical spectrum from one another.

公开(公告)号：US11575556B2

公开(公告)日：2023-02-07

申请号：US17458915

申请日：2021-08-27

Applicant: CIENA CORPORATION

Inventor： Francisco Javier Vaquero-Caballero ,  Michael Andrew Reimer ,  Seb Savory ,  Maurice O'Sullivan ,  Mohammad Ebrahim Mousa Pasandi ,  David Ives ,  Michael Hubbard ,  Andrew D. Shiner

IPC: H04L27/26 ,  H04L27/36

Abstract: A communication system is configured to generate a perturbed signal by perturbing an amplitude of a spectrum of an original signal in one or more spectral regions, and to propagate the perturbed signal through components of the communication system. The communication system is further configured to obtain a measurement of the perturbed signal in a first spectral region of the one or more spectral regions following the propagation of the perturbed signal, and to calculate an estimate of an impairment associated with the communication system based on the measurement.

公开(公告)号：US20230318712A1

公开(公告)日：2023-10-05

申请号：US17712263

申请日：2022-04-04

Applicant: Ciena Corporation

Inventor： Michael Hubbard ,  Will Leckie ,  Victor Aldea ,  Priyanth Mehta

IPC: H04B10/50 ,  H04B10/61

CPC classification number: H04B10/5051 ,  H04B10/615 ,  H04B10/616

Abstract: A coherent optical transmitter includes circuitry connected to a coherent modulator; and a plurality of tunable optical filters (TOFs) connected to one another and connected to an output of the coherent modulator, wherein the plurality of tunable optical filters are configurable to create an effective transfer function having a variable width. The TOFs are cascaded and can be included in discrete form on electro-optic printed circuit boards (PCBs), or integrated in various electro-optic material systems such as in silicon photonics, photonic integrated circuits (PICs), as well as hybrid and other approaches. The advantage of this approach includes improved OSNR in colorless transmitters.

公开(公告)号：US12191994B2

公开(公告)日：2025-01-07

申请号：US17633704

申请日：2020-09-30

Applicant: Ciena Corporation

Inventor： Andrew D. Shiner ,  Shahab Oveis Gharan ,  Michael Hubbard ,  Kim B. Roberts

IPC: H04L1/00 ,  H04W24/08

Abstract: A system is configured to measure (602) a forward error correction (FEC) decoding property (216) associated with applying FEC decoding (214) to FEC-encoded bits or symbols at a receiver device (202) deployed in a communication network (100). The system is configured to provide (606) an assessment of operating conditions of the receiver device based on the FEC decoding property. The FEC decoding property comprises, for example, a distribution of a number of iterations of a FEC decoding operation applied to a plurality of FEC blocks processed within a period of time. In some examples, the FEC decoding property comprises any one of heat, temperature, current, voltage, active clock cycles, idle clock cycles, activity of parallel engines, activity of pipeline stages, and input or output buffer fill level of the FEC decoding. The assessment is based, for example, on a comparison between the FEC decoding property and reference FEC data (218).