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1. 发明申请

US20080063407A1 DIGITAL OPTICAL NETWORK ARCHITECTURE 有权
标题翻译：数字光网络架构
公开(公告)号：US20080063407A1
公开(公告)日：2008-03-13
申请号：US11938761
申请日：2007-11-12
申请人： Jagdeep Singh , Drew Perkins , David Welch , Mark Yin , Fred Kish , Stephen Grubb , Robert Taylor , Vincent Dominic , Matthew Mitchell
发明人： Jagdeep Singh , Drew Perkins , David Welch , Mark Yin , Fred Kish , Stephen Grubb , Robert Taylor , Vincent Dominic , Matthew Mitchell
IPC分类号： H04B10/00
CPC分类号： G02B6/12011 , B82Y20/00 , G01R31/31728 , G01R31/318511 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02B6/131 , G02B6/136 , G02B6/4204 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , G02F2203/69 , H01L31/125 , H01S5/0014 , H01S5/0085 , H01S5/02248 , H01S5/026 , H01S5/0262 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/06832 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/3408 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/2914 , H04B10/50 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0265 , H04J14/0276 , H04J14/0282
摘要： A digital optical network (DON) is a new approach to low-cost, more compact optical transmitter modules and optical receiver modules for deployment in optical transport networks (OTNs). One important aspect of a digital optical network is the incorporation in these modules of transmitter photonic integrated circuit (TxPIC) chips and receiver photonic integrated circuit (TxPIC) chips in lieu of discrete modulated sources and detector sources with discrete multiplexers or demultiplexers.
摘要翻译：数字光网络（DON）是用于部署在光传输网络（OTN）中的低成本，更紧凑的光发射机模块和光接收机模块的新方法。数字光网络的一个重要方面是将发射机光子集成电路（TxPIC）芯片和接收机光子集成电路（TxPIC）芯片的这些模块并入，以代替具有分立多路复用器或解复用器的离散调制源和检测器源。

2. 发明申请

US20080013881A1 Monolithic Transmitter Photonic Integrated Circuit (TxPIC) with a Traversely Disposed Output 有权
标题翻译：具有横向放置输出的单片发射器光子集成电路（TxPIC）
公开(公告)号：US20080013881A1
公开(公告)日：2008-01-17
申请号：US11773960
申请日：2007-07-06
申请人： David Welch , Vincent Dominic , Fred Kish , Mark Missey , Radhakrishnan Nagarajan , Atul Mathur , Frank Peters , Robert Taylor , Matthew Mitchell , Alan Nilsson , Stephen Grubb , Richard Schneider , Charles Joyner , Jonas Webjorn , Drew Perkins
发明人： David Welch , Vincent Dominic , Fred Kish , Mark Missey , Radhakrishnan Nagarajan , Atul Mathur , Frank Peters , Robert Taylor , Matthew Mitchell , Alan Nilsson , Stephen Grubb , Richard Schneider , Charles Joyner , Jonas Webjorn , Drew Perkins
IPC分类号： G02B6/12
CPC分类号： G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12023 , G02B6/12033 , G02B6/131 , G02B6/136 , H01S5/026 , H01S5/0262 , H01S5/0265 , H01S5/0268 , H01S5/0612 , H01S5/12 , H01S5/4025 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04J14/02
摘要： A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
摘要翻译：一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器并从芯片提供输出波导上的组合输出信号。调制源，组合器和输出波导均集成在同一芯片上。

3. 发明申请

US20070248299A1 Monolithic Transmitter Photonic Integrated Circuit (TxPIC) Semiconductor Chip 有权
标题翻译：单片发射器光子集成电路（TxPIC）半导体芯片
公开(公告)号：US20070248299A1
公开(公告)日：2007-10-25
申请号：US11766693
申请日：2007-06-21
申请人： David Welch , Vincent Dominic , Fred Kish , Mark Missey , Radhakrishnan Nagarajan , Atul Mathur , Frank Peters , Robert Taylor , Matthew Mitchell , Alan Nilsson , Stephen Grubb , Richard Schneider , Charles Joyner , Jonas Webjorn , Drew Perkins
发明人： David Welch , Vincent Dominic , Fred Kish , Mark Missey , Radhakrishnan Nagarajan , Atul Mathur , Frank Peters , Robert Taylor , Matthew Mitchell , Alan Nilsson , Stephen Grubb , Richard Schneider , Charles Joyner , Jonas Webjorn , Drew Perkins
IPC分类号： G02B6/12
CPC分类号： G02B6/12011 , B82Y20/00 , G01R31/31728 , G01R31/318511 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02B6/131 , G02B6/136 , G02B6/4204 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , G02F2203/69 , H01L31/125 , H01S5/0014 , H01S5/0085 , H01S5/02248 , H01S5/026 , H01S5/0262 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/06832 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/3408 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/2914 , H04B10/50 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0265 , H04J14/0276 , H04J14/0282
摘要： A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
摘要翻译：一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器并从芯片提供输出波导上的组合输出信号。调制源，组合器和输出波导均集成在同一芯片上。

4. 发明申请

US20070242919A1 MONOLITHIC TRANSMITTER PHOTONIC INTEGRATED CIRCUIT (TxPIC) WITH INTEGRATED OPTICAL COMPONENTS IN CIRCUIT SIGNAL CHANNELS 有权
标题翻译：具有集成光电组件的单片发射器光电集成电路（TxPIC）在电路信号通道
公开(公告)号：US20070242919A1
公开(公告)日：2007-10-18
申请号：US11767076
申请日：2007-06-22
申请人： David Welch , Vincent Dominic , Fred Kish , Mark Missey , Radhakrishnan Nagarajan , Atul Mathur , Frank Peters , Robert Taylor , Matthew Mitchell , Alan Nilsson , Stephen Grubb , Richard Schneider , Charles Joyner , Jonas Webjorn , Drew Perkins
发明人： David Welch , Vincent Dominic , Fred Kish , Mark Missey , Radhakrishnan Nagarajan , Atul Mathur , Frank Peters , Robert Taylor , Matthew Mitchell , Alan Nilsson , Stephen Grubb , Richard Schneider , Charles Joyner , Jonas Webjorn , Drew Perkins
IPC分类号： G02B6/12
CPC分类号： G02B6/12011 , B82Y20/00 , G01R31/31728 , G01R31/318511 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02B6/131 , G02B6/136 , G02B6/4204 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , G02F2203/69 , H01L31/125 , H01S5/0014 , H01S5/0085 , H01S5/02248 , H01S5/026 , H01S5/0262 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/06832 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/3408 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/2914 , H04B10/50 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0265 , H04J14/0276 , H04J14/0282
摘要： A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
摘要翻译：一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器并从芯片提供输出波导上的组合输出信号。调制源，组合器和输出波导均集成在同一芯片上。

5. 发明申请

US20070242918A1 Transmitter Photonic Integrated Circuits (TxPICs) with Directly Modulated Lasers and Wavelength Selective Combiners 有权
标题翻译：具有直接调制激光器和波长选择性组合的发射器光子集成电路（TxPIC）
公开(公告)号：US20070242918A1
公开(公告)日：2007-10-18
申请号：US11766077
申请日：2007-06-20
申请人： David Welch , Vincent Dominic , Fred Kish , Mark Missey , Radhakrishnan Nagarajan , Atul Mathur , Frank Peters , Robert Taylor , Matthew Mitchell , Alan Nilsson , Stephen Grubb , Richard Schneider , Charles Joyner , Jonas Webjorn , Drew Perkins
发明人： David Welch , Vincent Dominic , Fred Kish , Mark Missey , Radhakrishnan Nagarajan , Atul Mathur , Frank Peters , Robert Taylor , Matthew Mitchell , Alan Nilsson , Stephen Grubb , Richard Schneider , Charles Joyner , Jonas Webjorn , Drew Perkins
IPC分类号： G02B6/12
CPC分类号： G02B6/12011 , B82Y20/00 , G01R31/31728 , G01R31/318511 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02B6/131 , G02B6/136 , G02B6/4204 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , G02F2203/69 , H01L31/125 , H01S5/0014 , H01S5/0085 , H01S5/02248 , H01S5/026 , H01S5/0262 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/06832 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/3408 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/2914 , H04B10/50 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0265 , H04J14/0276 , H04J14/0282
摘要： A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
摘要翻译：一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器并从芯片提供输出波导上的组合输出信号。调制源，组合器和输出波导均集成在同一芯片上。

6. 发明申请

US20050111848A1 Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of operation 有权
公开(公告)号：US20050111848A1
公开(公告)日：2005-05-26
申请号：US10971890
申请日：2004-10-22
申请人： Stephen Grubb , Charles Joyner , Frank Peters , Fred Kish , Drew Perkins
发明人： Stephen Grubb , Charles Joyner , Frank Peters , Fred Kish , Drew Perkins
IPC分类号： G02B6/34 , H04B10/18 , H04B10/12
CPC分类号： H04J14/0221 , G02B6/12007 , G02B6/12014 , G02B6/12019 , G02B6/12026 , G02B6/12033 , G02B6/2793 , G02B6/29391 , G02B6/29394 , H04B10/25133
摘要： An optical equalizer/dispersion compensator (E/CDC) comprises an input/output for receiving a multiplexed channel signal comprising a plurality of channel signals of different wavelengths. An optical amplifier may be coupled to receive, as an input/output, the multiplexed channel signals which amplifier may be a semiconductor optical amplifier (SOA) or a gain clamped-semiconductor optical amplifier (GC-SOA). A variable optical attenuator (VOA) is coupled to the optical amplifier and a chromatic dispersion compensator (CDC) is coupled to the variable optical attenuator. A mirror or Faraday rotator mirror (FRM) is coupled to the chromatic dispersion compensator to reflect the multiplexed channel signal back through optical components comprising the chromatic dispersion compensator, the variable optical attenuator and the optical amplifier so that the multiplexed channel signal is corrected partially for equalization and chromatic dispersion compensation with respect to each pass through these optical components. The E/CDC components may be integrated in a photonic integrated circuit (PIC) chip. In several embodiments, a photonic integrated circuit (PIC) chip comprises an input into the chip that receives at least one channel signal having experienced chromatic dispersion, a chromatic dispersion compensator (CDC) that separates the at least one channel signal into separate wavelength components over a free spectral range (FSR) spanning only a signal channel width and subjects the wavelength components to a phase shift to change the wavelength group delay in the wavelength components and that recombines the wavelength components to reconstitute the at least one channel signal, and an output from the chip for the recombined at least one channel signal having reduced chromatic dispersion compared to the same channel signal received at the chip input. The CDC device may include a tuning section to vary the phase shift of wavelength components as they propagate through the device. Such a CDC device may include a Mach-Zehnder interferometer (MZI) or a cascaded group of Mach-Zehnder interferometers, or at least one arrayed waveguide grating (AWG) or at least one Echelle grating.

7. 发明授权

US07634195B2 Digital optical network architecture 有权
标题翻译：数字光网络架构
公开(公告)号：US07634195B2
公开(公告)日：2009-12-15
申请号：US11938761
申请日：2007-11-12
申请人： Jagdeep Singh , Drew Perkins , David F. Welch , Mark Yin , Fred A. Kish, Jr. , Stephen G. Grubb , Robert R. Taylor , Vincent G. Dominic , Matthew L. Mitchell , James R. Dodd, Jr.
发明人： Jagdeep Singh , Drew Perkins , David F. Welch , Mark Yin , Fred A. Kish, Jr. , Stephen G. Grubb , Robert R. Taylor , Vincent G. Dominic , Matthew L. Mitchell , James R. Dodd, Jr.
IPC分类号： H04J14/02
CPC分类号： G02B6/12011 , B82Y20/00 , G01R31/31728 , G01R31/318511 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02B6/131 , G02B6/136 , G02B6/4204 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , G02F2203/69 , H01L31/125 , H01S5/0014 , H01S5/0085 , H01S5/02248 , H01S5/026 , H01S5/0262 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/06832 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/3408 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/2914 , H04B10/50 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0265 , H04J14/0276 , H04J14/0282
摘要： A digital optical network (DON) is a new approach to low-cost, more compact optical transmitter modules and optical receiver modules for deployment in optical transport networks (OTNs). One important aspect of a digital optical network is the incorporation in these modules of transmitter photonic integrated circuit (TxPIC) chips and receiver photonic integrated circuit (TxPIC) chips in lieu of discrete modulated sources and detector sources with discrete multiplexers or demultiplexers.
摘要翻译：数字光网络（DON）是用于部署在光传输网络（OTN）中的低成本，更紧凑的光发射机模块和光接收机模块的新方法。数字光网络的一个重要方面是将发射机光子集成电路（TxPIC）芯片和接收机光子集成电路（TxPIC）芯片的这些模块并入，以代替具有分立多路复用器或解复用器的离散调制源和检测器源。

8. 发明申请

US20050249509A1 Coolerless photonic integrated circuits (PICs) for WDM transmission networks and PICs operable with a floating signal channel grid changing with temperature but with fixed channel spacing in the floating grid 有权
标题翻译：用于WDM传输网络和PIC的无冷却光子集成电路（PIC）可与浮动信号通道网格一起工作，浮动信道网格随着温度而变化，但在浮动网格中具有固定的信道间隔
公开(公告)号：US20050249509A1
公开(公告)日：2005-11-10
申请号：US11106875
申请日：2005-04-14
申请人： Radhakrishnan Nagarajan , Fred Kish, , David Welch , Drew Perkins , Masaki Kato
发明人： Radhakrishnan Nagarajan , Fred Kish, , David Welch , Drew Perkins , Masaki Kato
IPC分类号： G02B6/28 , G02B6/34 , H01S5/00 , H01S5/024 , H01S5/026 , H01S5/0683 , H01S5/12 , H01S5/223 , H01S5/343 , H01S5/40 , H04B10/04 , H04B10/155
CPC分类号： G02B6/12033 , B82Y20/00 , G02B6/12019 , G02B6/2813 , G02B6/293 , G02B6/29317 , G02B6/29338 , G02B6/29352 , H01S5/005 , H01S5/0085 , H01S5/02248 , H01S5/024 , H01S5/0261 , H01S5/0265 , H01S5/0268 , H01S5/0683 , H01S5/1032 , H01S5/12 , H01S5/1221 , H01S5/2231 , H01S5/34306 , H01S5/4031 , H01S5/4087 , H04B10/506
摘要： A coolerless photonic integrated circuit (PIC), such as a semiconductor electro-absorption modulator/laser (EML) or a coolerless optical transmitter photonic integrated circuit (TxPIC), may be operated over a wide temperature range at temperatures higher then room temperature without the need for ambient cooling or hermetic packaging. Since there is large scale integration of N optical transmission signal WDM channels on a TxPIC chip, a new DWDM system approach with novel sensing schemes and adaptive algorithms provides intelligent control of the PIC to optimize its performance and to allow optical transmitter and receiver modules in DWDM systems to operate uncooled. Moreover, the wavelength grid of the on-chip channel laser sources may thermally float within a WDM wavelength band where the individual emission wavelengths of the laser sources are not fixed to wavelength peaks along a standardized wavelength grid but rather may move about with changes in ambient temperature. However, control is maintained such that the channel spectral spacing between channels across multiple signal channels, whether such spacing is periodic or aperiodic, between adjacent laser sources in the thermally floating wavelength grid are maintained in a fixed relationship. Means are then provided at an optical receiver to discover and lock onto floating wavelength grid of transmitted WDM signals and thereafter demultiplex the transmitted WDM signals for OE conversion.
摘要翻译：诸如半导体电吸收调制器/激光器（EML）或无冷器光发射机光子集成电路（TxPIC）的无冷却光子集成电路（PIC）可以在高于室温的温度范围内工作，而不需要需要环境冷却或密封包装。由于在TxPIC芯片上存在N个光传输信号WDM信道的大规模集成，新的具有新型感测方案和自适应算法的DWDM系统方法提供了PIC的智能控制，以优化其性能并允许光发射机和接收机模块在DWDM 系统运行未冷却。此外，片上通道激光源的波长网格可以在WDM波长带内热漂浮，其中激光源的各个发射波长不沿着标准波长网格固定到波长峰值，而是可以随着环境的变化而移动温度。然而，保持控制，使得在热浮动波长网格中的相邻激光源之间跨多个信号通道的信道之间的信道频谱间隔（无论这样的间隔是周期性的还是非周期性的）保持固定的关系。然后在光接收器处提供装置以发现并锁定发送的WDM信号的浮动波长网格，然后对发送的WDM信号进行解复用以进行OE转换。

9. 发明申请

US20070009262A1 Modular adaptation and configuration of a nework node architecture 有权
标题翻译：一种nework节点架构的模块化适配和配置
公开(公告)号：US20070009262A1
公开(公告)日：2007-01-11
申请号：US11479778
申请日：2006-06-30
申请人： Drew Perkins , Ting-Kuang Chiang , Marco Sosa , Mark Yin , Edward Sprague
发明人： Drew Perkins , Ting-Kuang Chiang , Marco Sosa , Mark Yin , Edward Sprague
IPC分类号： H04B10/20
CPC分类号： H04J14/0201 , H04J14/0219 , H04L49/40 , H04L49/405 , H04L49/45
摘要： The present invention provides a system, apparatus and method for modularly adapting a network node architecture to function in one of a plurality of potential node types. The architecture includes a configurable switching element, integrated optics, and a plurality of modules that allow a “type” of node to be adapted and configured within the base architecture. The module interfaces may be optical or electrical and be used to construct various different types of nodes including regenerators, add/drop nodes, terminal nodes, and multi-way nodes using the same base architecture.
摘要翻译：本发明提供了一种用于模块化地适应网络节点体系结构以在多个潜在节点类型之一起作用的系统，装置和方法。该架构包括可配置的开关元件，集成光学元件和允许在基础架构内适配和配置节点“类型”的多个模块。模块接口可以是光学的或电的，并且可以用于构造各种不同类型的节点，包括再生器，添加/分出节点，终端节点和使用相同基础架构的多路节点。

10. 发明申请

US20050286521A1 Universal digital framer architecture for transport of client signals of any client payload and format type 有权
公开(公告)号：US20050286521A1
公开(公告)日：2005-12-29
申请号：US11154455
申请日：2005-06-16
申请人： Ting-Kuang Chiang , Drew Perkins , Edward Sprague , Daniel Murphy
发明人： Ting-Kuang Chiang , Drew Perkins , Edward Sprague , Daniel Murphy
IPC分类号： H04J3/08 , H04J3/14 , H04J3/16 , H04L12/28 , H04L12/56
CPC分类号： H04J3/1652 , H04J3/08 , H04J3/14
摘要： Client signals to be transported in a transmission network, particularly an optical transmission network, may have different payload envelope rates and are digitally mapped on the client egress side into first transport frames (also referred to as iDTF frames, or intra-node or internal digital transport frames), at the client side for intra-transport within terminal network elements (NEs) and further digitally mapped into second transport frames (also referred to as DTFs or digital transport frames) for inter-transport across the network or a link which, through byte stuffing carried out in the first transport frames so that they always have the same frame size. As a result, the system of framers provides for a DTF format to always have a uniformly universal frame rate throughout the network supporting any client signal frequency, whether a standard client payload or a proprietary client payload, as long as its rate is below payload envelope rate of the client signal. At the client signal ingress side, the signal are digitally demapped from the second transport frames (DTF format) into the first transport frames where the stuff bytes are removed and accordingly processed at an intermediate node element before further transport, or digitally demapped from the first transport frames (iDTF format) to reproduce or reassemble the client signal or signals comprising the client payload at the client payload envelope rate for reception at the client's equipment. Among various features disclosed, two predominate features are (1) a single channel or network rate for transport of all signals between network elements (NEs) and end terminal network elements and (2) the digitally wrapping of different types of payloads into N client side or first frames using stuff bytes to render each client side frame size equal to a predetermined value. Then the stuffed first frames are wrapped into line side or second frames for transport over the network at the same high speed line rate for all digitally wrapped client signals. The client side framers may be, for example, running at the lowest signal rate encountered, to digitally wrap then into parallel N client signals or digitally wrap a client signal multi-sected into N parts, where these two different client signals have different payload rates.

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