There are many types of attenuator in optical fiber, classified by connector type including SC, LC, FC, ST, SMA, MPO, MU, and DIN, etc or it can also be classified by packaging method into fixed attenuators and variable fiber attenuators. When purchasing attenuator in optical fiber, please do consider comprehensively your specific needs, application scenario, and budget that offers the best price and quality.

Clearly defined application scenarios
Fixed attenuators also called build out attenuator pr plug in type attenuator, it is suitable for scenarios requiring stable attenuation, such as optical power pre-equalization and EDFA input protection. Attenuation values are typically 5dB, 10dB, 15dB, 20dB.
VOA variable optical attenuator are used in scenarios requiring flexible adjustment, such as optical device testing and dynamic link adjustment. Attenuation range is 0-30dB, with a resolution of 0.1dB.
Key Parameter Selection
- Attenuation Range: Select according to requirements, YINGDA attenuator support 0.3~60dB, and voa variable optical attenuator need to cover dynamic adjustment requirements.
- Operating Wavelength: 1310nm/1550nm is commonly used for single mode fiber attenuator, and 850nm/980nm is available for multimode attenuator.
- Insertion Loss: ≤0.2dB for fixed attenuators, ≤1.0dB for fiber optic variable attenuators.
- Return Loss: >55dB for single mode attenuator, ≥18dB for multimode fiber attenuator.
- Power Handling: Must match the system’s optical power, such as 500mW.
- Accuracy: ±0.05dB for fixed attenuators, ±0.2dB for voa optical attenuator.
- Fiber Type: Single-mode fiber connector or multi-mode connector.
Service Life and Price
The theoretical lifespan of attenuator in optical fiber is typically 50,000 hours (approximately 5 years), but this can vary depending on the operating environment.
Due to mass production, the cost of raw materials is lower, and the work efficiency at each workstation is higher.
All operations are performed step-by-step according to work instructions, ensuring no steps are missed, and quality control is more precise and rigorous.
Common products are kept in stock in large quantities, saving customers time and costs.
Conclusion
Yingda provides a variety of competitively priced fiber optic attenuators and fiber connectivity products. We maintain long-term inventory and label all products with various standards. All products undergo rigorous testing before shipment. All test data is included in the report, giving customers peace of mind and satisfaction. We pass on every saved profit to our customers. You can buy with confidence.