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相关概念视频

Cascaded Op Amps01:16

Cascaded Op Amps

656
Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
656
Gain01:15

Gain

194
Gain and phase shift are properties of linear circuits that describe the effect a circuit has on a sinusoidal input voltage or current. The circuit's behavior that contains reactive elements will depend on the frequency of the input sinusoid. As a result, it is observed that the gain and phase shift will all be frequency functions.
Gain:
Suppose Vin is the input and Vout is the output signal to a circuit.
194
Small-Signal Analysis of MOSFET Amplifiers01:23

Small-Signal Analysis of MOSFET Amplifiers

588
In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage (VGS) of the MOSFET is the sum of the DC biasing voltage and the small time-varying input signal. This combination sets up the operating point and modulates the drain current (ID) that flows from the drain to the source. When a small AC signal is superimposed on the DC bias voltage at the gate, the instantaneous drain current comprises three...
588
Maximum Power Transfer01:16

Maximum Power Transfer

278
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
278
MOSFET Amplifiers01:17

MOSFET Amplifiers

176
The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
176
Power Factor Correction01:20

Power Factor Correction

197
The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
197

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基于功率均等的分类光学网络使用开关增益均等控制放大器.

Abhishek Anchal, Sumit Chatterjee, Deepak Sanghi

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    |September 29, 2023
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    概括
    此摘要是机器生成的。

    光学网络的分类可以节省成本,但面临着互操作性挑战. 使用交换增益均等控制 (SGEC) 放大器的新方法成功地在400G ZR+和传统连贯收发器之间实现了功率均等,从而实现了无集成.

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    科学领域:

    • 光学网络的光学网络.
    • 电信工程 电信工程 电信工程

    背景情况:

    • 光学网络分离旨在减少供应商锁定和高容量WDM系统的成本.
    • 将400G ZR+连贯收发器 (XCVR) 与传统的XCVR集成,由于不同的OSNR要求,存在互操作性问题.
    • 使用波长选择开关 (WSS) 的现有功率均等方法可以降低链路OSNR.

    研究的目的:

    • 研究一种新的方法,用于在分类的400G ZR+和传统的连贯收发器之间等效光学功率.
    • 克服与传统功率均衡技术相关的OSNR限制和插入损失处罚.
    • 通过实地试验和模拟来验证拟议方法的有效性.

    主要方法:

    • 在每个直线放大器站点使用一个开关增益等效控制 (SGEC) 放大器.
    • 实现了动态增益均等,以管理ZR+和传统XCVR之间的功率差异.
    • 在不同供应商的十个高功率连贯主机通道上使用400G-ZR+ QSFP-DD-DCO外星通道进行了实地试验.
    • 执行模拟来分析光学链路上的功率和OSNR演变.

    主要成果:

    • SGEC放大器成功地使通道功率均等,而无需引入插入损失或过器处罚.
    • 一个实地试验显示了与400G-ZR+外星通道和无400G-ZR+外星通道的主机通道的类似Q-边缘.
    • 模拟结果证实了现场试验的结果,证实了有效功率和OSNR均等.

    结论:

    • 开关增益均等控制 (SGEC) 放大器为分类光网络中的功率均等提供了有效的解决方案.
    • 这种方法使400G ZR+收发器与传统连贯系统的无互操作性成为可能,提高了网络灵活性和成本效益.
    • 该SGEC方法避免了OSNR退化,为更复杂和分类的光网络架构铺平了道路.