Fiber Optic Attenuators (Fixed & Variable, FC/SC/LC)—Low-loss, Precision, OEM/ODM

Our fiber optic attenuators are designed to safely reduce optical signal power levels in fiber networks, essential for preventing receiver saturation and maintaining quality in test, measurement, PON, and CATV systems. Available in fixed (FC, SC, LC housing) and variable (stepwise or continuously adjustable) formats, they offer accurate, low-loss attenuation from 1 dB to 30 dB.

Why Choose Our Attenuators

Accurate & Stable: Fixed attenuation values within ±0.5 dB; variable versions offer smooth adjustment with ultra-low insertion loss.

Low Insertion Loss: Typically < 0.5 dB for fixed attenuators, and ≤ 1.0 dB at minimum attenuation for variable styles.

Broad Connector Range: FC, SC, LC housings available in UPC or APC polish for compatibility with diverse systems.

OEM/ODM Customization: Custom attenuation steps, packaging, labeling, cable lengths, and branding available.

Tested & Traceable: All units tested—insertion and return loss validated, test data can be tied to serial numbers or batches.

Product Types

Fixed Attenuators: Choose predetermined dB values (1, 3, 5, … up to 30 dB) in FC/SC/LC bodies. Ideal for permanent system balancing.

Stepwise Variable Attenuators: Click-adjustable units allowing fine changes, useful for lab setup or precise commissioning.

Continuously Variable Attenuators: Dial-adjustable fiber inline attenuators for live signal tuning in system calibration.

Specifications Overview

Attenuation Range: 1 to 30 dB (fixed); variable models cover full range continuously or in steps.

Attenuation Accuracy: ±0.5 dB typical.

Insertion Loss: < 0.5 dB for fixed, ≤ 1.0 dB at minimum for variable attenuators.

Return Loss: UPC ≥ 50 dB; APC ≥ 60 dB.

Connector Types: FC, SC, LC (simplex); UPC/APC polish per fiber type.

Durability: ≥ 500 insertions; mechanical integrity maintained.

Operating Temperature: –40 °C to +85 °C.

Compliance: IEC/TIA-568, RoHS; optional serial-linked test report available.

Applications

Receiver balancing in PON/FTTH to avoid saturation.

Circuit testing and measurement in labs or field deployments.

CWDM/DWDM systems for channel power equalization.

Signal conditioning in CATV and optical distribution networks.

Selection Guide

Fixed Matching Negative Budget: Use fixed attenuators to reduce signal power to target Rx levels.

Lab Tuning: Stepwise variable attenuators for coarse testing. Continuous types for live adjustments.

PON Applications: Use APC-polished attenuators to minimize reflection and preserve link quality.

Customization & Services

Custom features include nonstandard attenuation values, cable types/lengths, connector styles, logo or label printing, and tailored packaging.

Sample units available for evaluation; we offer high-speed quoting and order response.

Warranty: 2-year product guarantee; free returns for manufacturing defects within 3 months; one year of technical assistance included.

Support: Optical budget consultation, integration advice, and accessory recommendations for attenuation needs.

Ordering Information

Please specify: Type (fixed or variable), attenuation value(s), connector type and polish, customization details (branding, labeling, packaging), quantity, and delivery urgency.

FAQ

Q1: samples available? Yes ！

Q2: How precise are the attenuation values? Fixed attenuators maintain ±0.5 dB accuracy. Variable models offer fine control with consistent insertion performance.

Q3: Can you customize attenuation steps? Absolutely—you can specify unique step intervals or custom attenuation value for fixed models via OEM/ODM.

Q4: What warranty do you provide? We include a two-year warranty. Quality-related returns are accepted within three months, and we offer one year of support thereafter.

Q5: Do you support lab-grade connectors like APC? Yes—UPC and APC end-polish options are available to meet high-precision and PON alignment standards.

Q6: What is the lead time for custom attenuators? Stock models ship promptly; custom builds are fast-tracked; staged delivery is available for large-volume projects.

Request a Quote

Request Your Quote or contact our team to design attenuation solutions for your system precision and performance requirements.