Attenuator
Attenuator is part of the fiber optic attenuator range built by Ever Expresslink Limited in Ningbo, China.
Controlled loss, for when a receiver is being overdriven
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Product Overview
Attenuator is part of the fiber optic attenuator range built by Ever Expresslink Limited in Ningbo, China.
Sometimes in the fiber optic network, people may need to reduce or balance the power of the light transmitted from one device to another device, fiber optic attenuators are used in such cases, they are able to control the output of the fiber light power level. Fiber optic attenuator are used for reducing the power of the light in the fiber optic network. we supply two types fiber optic attenuators, fixed value fiber optic attenuator refer to the attenuator that can reduce the power of fiber light at a fixed value loss, for example, 2dB. While adjustable fiber optic attenuator refer to the attenuator that can generate a adjustable Loss to the fiber optic link. our fiber attenuator series include:SC, FC, LC, ST, MU, SC/APC, FC/APC, single mode fiber optic attenuator and multimode fiber optic attenuator available. Our fiber optic attenuators are manufactured according to international standard and are compartible with the fiber optic products currently available in the international market.
Fiber optic attenuators can be designed to use with various kinds of fiber optic connectors. the attenuators can be female to female which is called bulkhead fiber optic attenuator or male to female which is also called a plug fiber optic attenuator.bulkhead and plug types are designed without cables, another type inline fiber optic attenuator is designed with a piece of fiber optic cable. Wide range variable & inline fiber optic attenuator the inline fiber optic attenuator are with more accurate attenuation compared with traditional connector type fiber optic attenuators. what is more, this fiber optic attenuator is with a precision screw set, by turing it, the attenuation range can be varied. and this fiber optical attenuator can be with various terminations on the each side of the cable. fiber optic attenuator technique data UPC type return loss 50dB or greater APC type return loss 60dB or greater Working wavelength 1310nm or 1550nm
Key Benefits
- Supplied as Attenuator, so the part you receive matches the designation you ordered against
- Fixed values for production use and tunable versions for the bench
- Male-to-female plug styles that drop straight into an existing port
- Available across the main connector types and both polish styles
- Low back-reflection versions for return-loss-sensitive paths
Problems It Solves
- Ad-hoc attenuation methods that drift with temperature
- Receiver saturation on short links built with high-power transmitters
- Bit errors that look like contamination but are actually overload
- Test benches that need a repeatable, known loss rather than a coil of fiber
Application Scenarios
- Correcting an over-powered PON path at the splitter output
- Bringing a short DWDM or long-reach link into receiver range
- Balancing levels across a CATV optical distribution network
- Characterising receiver sensitivity on a test bench
Who It Is For
- Maintenance teams diagnosing overload symptoms
- Commissioning engineers bringing links into their power window
- Data-center teams running long-haul optics over short distances
- Test laboratories characterizing receivers
Technical Features
- MEMS variable versions for programmable bench work
- Male-to-female plug style for direct insertion into a port
- UPC and APC polish options
- Fixed attenuation values across the common dB steps
Materials
- Doped fiber or coated-ferrule attenuating element
- Zirconia ceramic ferrule
- Metal or thermoplastic housing
- Precision adjustment mechanism on tunable versions
Specifications
| Product Designation | attenuator |
|---|---|
| Product Family | Fiber Optic Attenuator |
| Manufactured In | Ningbo, China |
| Warranty | One year against defects in materials and workmanship |
Values shown are those carried by the product designation. Dimensional and optical values for a specific order are confirmed on the quotation.
Manufacturing Process
- Attenuating element preparation to the target value
- Connector assembly and polish
- Attenuation calibration against a reference
- Return loss verification
- Marking, capping and packing
Quality Control
- Attenuation value verified per unit against a calibrated reference
- Return loss measured on every unit
- Wavelength response checked on sample units
- Temperature stability sampled per production lot
- Marking accuracy checked against the measured value
Customization Options
- Attenuation value to your specification
- Fixed, tunable or MEMS variable format
- Connector type and polish
- Low back-reflection versions
- Matched sets for multi-channel balancing
Handling Attenuator
Before You Order
- Measure the actual received power before choosing a value
- Choose the value that lands mid-window, not at the edge of the receiver range
- Install on the receive side rather than the transmit side
In Service
- Use APC versions on paths where return loss is critical
- Re-measure after installation to confirm the link is inside its window
- Record the installed value in the link documentation
Questions About Attenuator
What do you need from us to quote Attenuator?
The quantity, the destination and anything that has to match on your side: connector and polish at each end, fiber mode and core size, and length where the item is an assembly. If you are matching a part you already buy, send the sample and we will quote against it.
How do I choose the right attenuation value?
Measure the received power with a power meter, compare it against the receiver's specified input range, and pick the value that puts you near the middle of that range rather than at its edge.
Where should the attenuator go, transmit or receive side?
The receive side. Attenuating at the transmitter reduces the margin available for the span itself, whereas attenuating at the receiver directly addresses the overload.
What is the difference between fixed and tunable attenuators?
Fixed units hold one calibrated value and are what you install in production. Tunable units let you sweep a range, which is what a test bench or a commissioning engineer wants while finding the right value.
Do you supply APC attenuators?
Yes. Use APC on PON, CATV and RF-over-glass paths where back reflection has to stay low. The polish is specified per order.
More Fiber Optic Attenuator
MEMS Variable Optical Attenuator
Used for bringing a short DWDM or long-reach link into receiver range.
View Details
MU Attenuator
We supply both UPC MU fiber optic attenuator and APC MU fiber optic attenuators for single mode applications.
View Details
LC Attenuator
We supply single mode LC fiber optic attenuators including the bulkhead LC attenuator and female to male LC fiber attenuator.
View Details
FC Attenuator
We supply FC APC single mode fiber optic attenuator and FC UPC single mode fiber optic attenuator, both of them are with ceramic sleeves and accurate FC connection.
View DetailsGuides Cases and Industries
Insertion Loss and Return Loss Explained
Two numbers on every test report, what each one is telling you, and how to build a link budget that survives being maintained.
Process GuideUPC and APC End Face Polish Explained
Why an eight degree angle changes where reflected light goes, when that matters enough to pay for it, and what happens if the two are mated.
Comparison ArticlePLC and FBT Optical Splitters Compared
Two ways to divide light, why PON standardized on one of them, and how to check whether your budget can carry the split you want.
Deployment ProfileCATV Optical Level Balancing
Bringing an optical distribution tree into level, and keeping reflections out of the picture
IndustryTelecom and Carrier Networks
Passive components for access, metro and transmission plant that has to stay up for decades
IndustryData Center and Enterprise LAN
High-density patching, structured cabling and building-to-building links
Request Pricing For Attenuator
Tell us the quantity and destination. If you are matching a part you already buy, send the sample and we will quote against it.