手動可變光衰減器
光衰減器在整個光譜中均勻地降低透射光的強度。應用包括防止過多的光線使接收器過載。
特性
尺寸超小，包裝緊湊
寬波長范圍，低IL，低PDL，低WDL
單模，PM和多模光纖版本
高衰減范圍
高分辨率
設計符合Telcordia標準
應用程序
多通道光放大網絡中的功率均衡與控制
增益傾斜控制在EDFA
通道開/關開關
有線電視系統
局域網
接收機保護
光學傳感器
產品規格
| Parameter | Unit | Specifications | |
|---|---|---|---|
| Fiber Orientation | One side | Two sides | |
| Operating Wavelength | nm | Optimized at 633±10, 780±30, 830±30, 1310±50, 1550±50 or 1625±50 or Custom | |
| Insertion Loss | dB | ≤ 1.0?1) | |
| Polarization Dependent Loss | dB | ≤ 0.10 | |
| Temperature Dependent Loss | dB | 0.30 | |
| Return Loss | dB | ≥ 50 for SM & PM fiber ≥ 30 for MM fiber | |
| Attenuation Range | dB | ≥ 60?2) | |
| Attenuation Resolution (Typ.) | dB | 0.10 | |
| Extinction Ratio (PM only) | dB | ≥ 20 | |
| Optical Power | W | ≤ 1.0 | |
| Fiber Type | ms | Single mode, PM or 50/62.5um Multimode | |
| Operating Temperature | °C | – 20 to +75 | |
| Storage Temperature | °C | – 40 to +85 | |
| Package Type | A | B | |
| Package Dimensions | mm | See “MECHANICAL DIMENSIONS” | |
Note:
1) 1.0dB maximum applies to 1310 and 1550nm only. Higher insertion loss up to 1.5dB applies 400~1200nm.
2) 80dB possible by special design.
All values referenced are without connector.
