通信工程文献翻译——在各种光学信号处理技术、全光波长转换出现作为一个关键的功能,使重构性和波长管理在未来全光波分复用(WDM)网络。在这样的网络中,多通道波长转换器需要为了减少泵激光的数量,降低整体成本和能源消耗,提高整个系统的灵活性。

在过去的几年里,双极化正交移相键控调制（DP-QPSK）已成为首选的格式的实现光传输系统操作的比特率100Gbit / s和这样的系统现在商业现实。因此,未来波长转换解决方案部署应该能够适应这种调制格式。基于四波混频波长转换（FWM）是众所周知的是透明的比特率和相位信号,因此兼容高速QPSK调制。然而,简并四波混频固有偏振敏感,要求泵被极化的信号。此外,在WDM网络中,不同的渠道可能来自网络的不同部分,可能不具有相同的偏振状态时，达到一个共同点是要进行波长转换。因此，为了能够使用光学过程FWM的WDM信号的偏振不敏感的方案是必需的。当采用偏振复用信号时，这种需要更为关键。

利用光纤作为非线性介质，研究了一种基于双正交泵浦或偏振分集环路的方案。然而，有一个集成的设备是可取的，因为它将使超紧凑，芯片上，全光信号处理。此外，在 硅平台集成器件提供低成本，大规模生产和兼容性与成熟的互补金属氧化物半导体（CMOS）技术。集成偏振操纵组件，包括偏振分束器和旋转器，已越来越多的关注，在过去的几年中的对象，导致多功能器件的实现。然而，一个完全集成的偏振不敏感的波长转换器使用一个超小型硅极化分集（Pol-D）电路已被证明最近。在这封信中，该器件的偏振无关是与一个单一的偏振差分二进制相移键控（DBPSK）评估在40 Gbit/s和干涉检测信号。

在这封信中，全光多波长转换32 GBaud DP-QPSK信号（Gbit / s和相干检测的比特率）实验证明使用FWM在绝缘体上硅Pol-D电路在硅纳米线作为非线性元件。所有三个WDM信道的波长转换，成功实现了以微不足道的代价（小于0.8分贝）平均质量......

Among various optical signal processing techniques, all-optical wavelength conversion appears as a key functionality to enable reconfigurability and wavelength management in future all-optical wavelength division multiplexing (WDM) networks. In such networks, multichannel wavelength converters would be required in order to minimize the number of pump lasers, decrease overall cost and energy consumption, and increase overall system flexibility.

Over the past few years, dual-polarization quadrature phase-shift keying modulation (DP-QPSK) has become the format of choice for the implementation of optical transmission systems operating at a bit rate of 100Gbit/s and such systems are now a commercial reality. As a consequence, future wavelength conversion solutions to be deployed should be able to accommodate this modulation format. Wavelength conversion based on four-wave mixing (FWM) is well known to be transparent to the bit rate and phase of the signal and is therefore compatible with high-speed QPSK modulation. However, degenerate FWM is inherently polarization sensitive, requiring the pump to be co-polarized with the signal. In addition, in WDM networks, different channels may originate from different parts of the network and may not have the same state of polarization when reaching a common node where wavelength conversion is to be performed. Therefore, in order to be able to optically process WDM signals using FWM, a polarization insensitive scheme is required. This need is even more critical when polarization-multiplexed signals are employed. 

A number of schemes based on either dual orthogonal pumps or on......