DWDM密集波分复用滤波器用于组合和分离密集波分复用网络中的光信号。它基于薄膜滤光片（TFF）技术，工作波长的范围为1525nm至1565nm（间隔200GHz或100GHz，即1.6nm或0.8nm）。DWDM滤波器为定制产品，可以定制的选项包括工作波长、光纤类型、光纤长度、COM端口、通过端口和反射端口。
|
Parameter
|
Unit
|
Value
|
|
Channel space
|
|
100GHz
|
200GHz
|
|
Central Wavelength
|
nm
|
ITU-T Grid
|
|
Channel Passband
|
dB
|
λ ±0.11
|
λ ±0.25
|
|
Passband Flatness
|
nm
|
≤0.5
|
|
Bandwidth(@-0.5dB)
|
nm
|
≥0.3
|
≥0.6
|
|
Insertion Loss (pass Channel
|
dB
|
Typ.0.8, Max.1.0
|
|
Insertion Loss (Reflective Channel)
|
dB
|
Typ. 0.6, Max.0.8
|
|
Adjacent Channel Isolation
|
dB
|
≥25
|
≥25
|
|
Non-adjacent Channel Isolation
|
dB
|
≥45
|
|
Isolation (Reflective Channel)
|
dB
|
≥12
|
≥12
|
|
Return Loss
|
dB
|
≥45
|
|
PDL
|
dB
|
≤0.10
|
|
Directivity
|
dB
|
≥50
|
|
Operation Temperature
|
℃
|
-5~+70
|
|
Storage Temperature
|
℃
|
-40~+85
|
|
Package
|
mm
|
Φ5.5×38 or 90x20x9.5
|
Notes:
1. All the values are tested under room temperature.
2. All insertion loss don't include connector loss.
DWDM器件主要用于无源波分复用系统模块产品，它具有低插入损耗、低偏振、高通道隔离度及高环境稳定性和可靠性等特点，适用于长距离、大容量长途干线网或超大容量的城域网核心节点等，广泛应用于城域网、电信5G、主干网、数据中心等领域
