FC-Attenuator Series Fiber Optic Attenuators

Product Description

• Attenuates optical signals
• FC-FC connectors, 2.2 mm wide keyway, compatible with single-mode and multi-mode fibers
• High repeatability, high return loss, low insertion loss
• Available with 2-port and 4-port integrated mounts
• Mounting holes for easy installation on posts, optical tables or breadboards

Fiber optic attenuators reduce optical power to prevent receiver distortion caused by excessive input power.

 

Common Parameters	Specifications
Connector Type	FC-FC
Material	Ceramic sleeve + aluminum alloy mount
Fiber Type	Single-mode & Multi-mode
Durability	> 100 matings
Repeatability	≤ 0.10 dB
Interchangeability	≤ 0.20 dB
Operating Wavelength	1200 nm – 1600 nm
Attenuation Accuracy	± 10% dB
Return Loss	> 20 dB

 

Model	Attenuation	Port Count	Weight
FC-Attenuator A2	1 dB / 3 dB	2 ports	25.0 g
FC-Attenuator A4	1 dB / 3 dB	4 ports	50.1 g
FC-Attenuator B2	5 dB / 7 dB	2 ports	25.0 g
FC-Attenuator B4	5 dB / 7 dB	4 ports	50.1 g
FC-Attenuator C2	10 dB / 15 dB	2 ports	25.0 g
FC-Attenuator C4	10 dB / 15 dB	4 ports	50.1 g

Technical Notes

1. Fiber optic attenuators reduce optical power to avoid receiver saturation. The FC-Attenuator series provides precise core alignment, high repeatability, high return loss, and low insertion loss.

1. Rubber caps are included on both ends for dust protection and storage.

1. L-shaped mounting brackets with through holes allow secure mounting via M6 screws to optical posts, tables, or breadboards.

1. Attenuation values are lasermarked on each unit. Available sets:

• 1 dB / 3 dB
• 5 dB / 7 dB
• 10 dB / 15 dB
• 

Assembly

Application Examples

Engineering Drawings

FC-Attenuator 4 Engineering Drawing

FC-Attenuator 2 Engineering Drawing