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成都昂通科技有限公司
成都昂通科技有限公司
该Interleaver 采取的是一种交叉滤波方案。按照奇偶分配的原则，把DWDM信号分解为两组信号流。分解后的每组信号频道间隔比原来增大了一倍，从而降低了后面密集波分复用器的难度。支持200GHz到100GHz间隔、100GHz到50GHz间隔、50GHz到25GHz间隔以及定制等一系列interleaver器件，包括对称型、非对称型、可开关型等。
An innovative technique for expanding the number of channels per fiber involves an optical device, called an optical interleaver. For example, in most DWDM equipment, the standard channel spacing is 100 GHz. But spacing the signal-carrying frequencies every 50 or even 25 GHz can double or even quadruple the number of channels per fiber. This job is accomplished by an optical interleaver. Such a device takes two multiplexed signals with 100-GHz spacing and interleaves them, creating a DWDM signal with channels spaced 50 GHz apart. The process can be repeated, creating even denser composite signals with 25-GHz or 12.5-GHz spacing. The signals at the receiving end are recovered with the same devices used as splitters or optical de-interleavers. Thus, devices and/or networks can be upgraded without requiring that all devices be upgraded, or network bandwidth can be increased.
Optoplex's Optical Interleaver products are based on patented Step-Phase Interferometer design. Used as a Demux (or Mux) device, an optical interleaver separates (or combines) the odd and even channel signals (see the schematic diagram below). Each optical interleaver device is optimized to cover either C- or L-bａnd wavelengths, with the option of covering C+L band. The current standard optical interleaver product family supports 100-200, 50-100, 25-50, and 12.5-25 GHz channel spacing, covering up to 90, 180, 360, and 720 channels, respectively, as well as other custom spacings in that range, such as 33.33-66.66 GHz. Dual-stage optical interleavers are also available. For asymmetric optical interleaver, please visit the other web page.
Optoplex's Optical Interleavers have wide and flat passband, low (ａnd customizable) dispersion, low and uniform insertion loss, low PDL, high channel isolation and very low thermal drift.
For Uneven or Asymmetric Optical Interleaver, please visit a different page.
| Symmetric Optical Interleaver |
| Symmetric Optical De-Interleaver |
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