Dense Wavelength Division Multiplexing (DWDM) ITU Grid. Introduction: Fiberdyne Labs, Inc. Dense Wavelength Division Multiplexing (DWDM) ITU Grid: C-Band, 100 GHz Spacing DWDM Channels. Note: For 200GHz spacing use either odd or even numbered DWDM channels. Download ITU Grid in PDF Format

2024年11月13日 · DWDM Wavelength ITU Channels Grid. Depending on the wavelength channel spacing, the International Telecommunication Union (ITU) classifies dense wavelength-division multiplexing into four types: 12.5GHz DWDM, 25GHz DWDM, 50GHz DWDM, and 100GHz DWDM. The table below shows the different channel spacing of those 4 DWDM wavelength grids.

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nm THz nm THz nm THz nm THz nm THz nm THz 1 1490.76 201.10 1491.13 201.05 1528.77 196.10 1529.16 196.05 1568.77 191.10 1569.18 191.05 2 1491.50 201.00 1491.88 200.95 1529.55 196.00 1529.94 195.95 1569.59 191.00 1570.01 190.95

Recommendation ITU-T G.694.1 provides a frequency grid for dense wavelength division multiplexing (DWDM) applications. The frequency grid, anchored to 193.1 THz, supports a variety of channel spacings ranging from 12.5 GHz to 100 GHz and wider.

中心波长 ITUGrid nm 信道间隔 200 GHz 通带带宽 Min. 0.5(±0.25) nm 透射通带损耗 Max. 1.0 dB 反射通带损耗 Max. 0.4 dB 宽带平坦度 Max. 0.3 dB 相邻通带隔离度 Min. 30 dB 非相邻通带隔离度 Min. 40 dB 损耗热稳定性 Max. 0.005 dB/℃ 波长偏移量 Max. 0.002 nm/℃ 偏振相关损耗 Max. 0.1 dB

The International Telecommunication Union established the following grid for Dense Wavelength Division Multiplexing systems. ITU recommends the 100 GHz (0.8 nm) spacing for DWDM operation. The 50 GHz offset (0.4 nm spacing) offers twice the bandwidth. The grid is centered at 193.10 THz (1552.52 nm).

In force components : Number: Title: Status: G.694.1 (10/20) Spectral grids for WDM applications: DWDM frequency grid In force Superseded and Withdrawn components

2021年4月14日 · 内容提示： I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T G.694.1 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (10/2020) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Transmission media and optical systems characteristics – Characteristics of optical systems Spectral grids for WDM applications: DWDM frequency grid Recommendation ...

2024年1月16日 · ITU-T G.694.1 is a recommendation standard that has been widely accepted and use for in DWDM applications and proposes channel spacing for 12.5 GHz, 25 GHz, 50 GHz, 100 GHz and above. DWDM channels are evenly spaced in range from 1260 nm to 1675 nm and categorized in bands and defined by: