DWDM密集波分復(fù)用濾波器用于組合和分離密集波分復(fù)用網(wǎng)絡(luò)中的光信號(hào)。它基于薄膜濾光片（TFF）技術(shù)，工作波長的范圍為1525nm至1565nm（間隔200GHz或100GHz，即1.6nm或0.8nm）。DWDM濾波器為定制產(chǎn)品，可以定制的選項(xiàng)包括工作波長、光纖類型、光纖長度、COM端口、通過端口和反射端口。
|
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器件主要用于無源波分復(fù)用系統(tǒng)模塊產(chǎn)品，它具有低插入損耗、低偏振、高通道隔離度及高環(huán)境穩(wěn)定性和可靠性等特點(diǎn)，適用于長距離、大容量長途干線網(wǎng)或超大容量的城域網(wǎng)核心節(jié)點(diǎn)等，廣泛應(yīng)用于城域網(wǎng)、電信5G、主干網(wǎng)、數(shù)據(jù)中心等領(lǐng)域
