Fiber Optic Attenuators and Related Products.

Fiber Optic Attenuators

A fiber attenuator is an optical device that reduces the energy of a light signal.Used for the attenuation of input optical power, avoiding distortion caused by the input optical power. As a passive device, the fiber attenuator is used for debugging optical power performance in optical communication system, calibration correction of optical fiber instrument, and attenuation of optical fiber signal. The product is made of decaying fiber mixed with metal ions, which adjusts the optical power to the desired level. The fiber attenuator test system has the characteristics of high attenuation accuracy, low additional loss and good stability. The fiber attenuator is mainly used in: optical communication system, fiber optic CATV, high-power optical device measurement, for the attenuation of input optical power, avoiding the distortion caused by the optical receiver due to the strong input optical power.

SC/ST/FC/LC Attenuators

By port type, you can categorize fiber optic attenuators in several categories as follows:
SC fiber attenuator: applied to the SC fiber interface, it looks very similar to the RJ-45 interface, but the SC interface looks more flat, the obvious difference is the inside of the touch, if it is 8 thin copper taps, is the RJ-45 interface, if it is a copper column is the SC fiber interface. LC Fiber Attenuator: A connector for the LC fiber interface that connects the SFP module and is made of a convenient modular jack (RJ) latch mechanism. FC fiber attenuator: applied to FC fiber interface, the external reinforcement method is to use metal sleeve, fastening mode for screw buckle. Generally used on the ODF side. ST fiber attenuator: used in The ST fiber interface, often used in fiber optic wiring rack, the shell is round, fastening mode is screw buckle. There are female to male attenuators and inline cable attenuators.

Attenuator Applications

Fiber attenuator is a very important fiber optic passive device, with the development of optical communication industry was born. The fiber attenuator can reduce the optical signal and is used to attenuate the input optical power, avoiding the distortion of the optical receiver due to the high input power. With the development of optical communication industry and the improvement of the level of process manufacturing, the loss of optical fiber optic cable, connector and other optical fiber devices is decreasing, less than the amount of attenuation of the design, which may lead to the optical receiver received a larger optical power, more than its tolerance range, the situation of saturation distortion. Therefore, in order to reduce the signal received by the optical receiver, a light attenuator is required to control the optical power within a certain range.

Fiber Optic Attenuators from Professional China Manufacturer

In-line fiber attenuators provide optical communication devices that provide specific attenuation slots based on the different needs of different projects. The in-line fiber attenuator can be applied to a variety of fiber transmission lines for pre-set light intensity attenuation. This fiber attenuator is mainly used in fiber optic communication network, fiber-optic CATV network, fiber-optic data network and fiber-optic test system. The attenuator value of the in-line fiber attenuator is high with high precision, low additional loss, and better stability than other types, while its attenuation value can be adjusted according to its needs.

Fixed fiber attenuators are more like adapters, which are mainly used in fiber optic communication systems, fiber optic CATV and high-power optical device measurement. Mainly through the way of flange to use, FC, SC, ST and LC all kinds of connector jumpers can be used, it is very convenient to install, easy to use, by many users love.

Female to male fiber attenuator is a male-female device, the same as fixed fiber attenuator, but also supports a variety of LC, SC, FC and ST and other joint methods. Female to male fiber attenuators are ground with PC, UPC or APC with an attenuation value of 1-30dB. It uses metal ion attenuation fiber technology to achieve attenuation effect, with light weight, high precision, various forms, easy to use, small size and light-resistant power light source and other advantages. Mainly used in optical wiring rack, fiber optic network system, high-speed fiber transmission system, CATV, OADM and DWDM systems.

Huihongfiber offers in-line attenuators, adjustable attenuators, female to male attenuators, and passive optical devices for optical signal attenuation. Production of FC fiber attenuator, ST fiber attenuator, SC fiber attenuator, LC fiber attenuator, adjustable fiber attenuator.

Overseas Business

Fiber Optic Attenuators Manufacturer

Fiber Optics for Data Centers

Fiber Optics for Data Centers

Fiber Cables, Transceivers and Components.

We have high speed fiber optic cables and transceivers for data centers, including 1G,10G,40G,100G and more.

Fiber Optics for FTTX

Fiber Optics for FTTX

Indoor cables, outdoor cables, FTTX cables.

We have various types of cables for FTTX projects, including indoor cables, outdoor cables, ADSS, FTTH, FTTA.

Professional Team

Professional Team

Professional team with rich experience.

We have a team of experienced staff. Most of our staff have over 10 years’ experience in this industry.

"For quality Fiber Optic Attenuators and equipment you can trust us, here you get reliable products, fast delivery and low prices."

Fiber Optic Attenuators Supplier

Worldwide Shipping

Worldwide Shipping

Over the years, our fiber optic cabinets and related equipment are chosen by clients from all over the world, we ship goods to over 100 countries and regions on the planet, including Asia, Europe, America, Oceania and Africa.

High Quality

High Quality

Thanks to our skilled workers, experienced engineers and the advanced manufacturing equipment, we are able to provide the top quality fiber optic cabinets and components to customers.

Diversified Products

Diversified Products

We make a wide range of fiber optic cables, components, closures and related communication equipment, together with the power and electric modules, to use with our network fiber optic cabinets.

Cost Effective

Cost Effective

As direct manufacturer, we offer low price to customers to support them win in the business. With mass production and long history, we are able to cut cost and supply competitive prices fiber optic cabinets.

Fast Delivery

Fast Delivery

For small quantity, we ship by couriers like DHL/FedEx/UPS/TNT/EMS, for big quantity orders, we ship by air or by sea. As specialized fiber optic cabinets manufacturer, we have a fast delivery for both small and big quantity orders.

We Make More Than Fiber Optic Attenuators

Fiber Optic Patch Cord


We make fiber optic patch cable, LC,SC,ST, E2000,MU, VF45,FC, MT-RJ, MPO, Volition,MTP, DIN, D4, SMA, Escon,FDDI and more. UPC polish, APC polish connectors.

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Fiber Optic Pigtails


We are supplier of fiber pigtails SC, SC/APC, ST, ST/APC,FC, FC/APC, LC, LC/APC, MT-RJ ,MPO,MTP,E2000,fiber optic pigtails,simplex,duplex,fan out pigtails.

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Fiber Optic Adapters


Fiber Optic Adapters FC, SC, ST, LC, MT-RJ, MU, simplex, E2000, FC/APC,duplex, SC/APC, LC/APC, E2000/APC ,quad, mating sleeves, hybrid fiber optic adapters.

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Fiber Optic Splitters


Bare fiber PLC splitter, blockless PLC splitter,LGX PLC splitter, fused fiber optic splitter, rack mount fiber splitters and custom made fiber splitter boxes.

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Fiber Optic Transceivers


Transceivers for major players in the industry, SFP,XFP,SFP+,GBIC, Xenpak,X2,BIDI,CWDM,DWDM,QSFP, transceivers cables, QSFP28, QSFP Plus, CXP, CFP, CFP2 and more.

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Fiber Optic Cables


Indoor fiber optic cables, outdoor cables, FTTH cables, single mode, multimode, OS1,OS2,OM1,OM2,OM3,OM4,OM5 and more.

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Fiber Optic Trays


Fiber trays, fiber optic modules, terminal boxes, custom fiber optic components, to use in fiber patch panels, splice closures, distribution units and boxes.

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Custom Design


Custom design fiber optic cabinets, boxes, closures, cables, modules, transceivers and more, welcome to contact us for your fiber optic products needs.

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Professional Fiber Optic Attenuators Manufacturer

Huihongfiber is a company engaged in fiber optic communications products research and development, production, sales of professional high-tech enterprises. With precision parts processing lines, fiber jumper production lines, fiber attenuators and components lines, sheet metal processing production lines and precision mold manufacturing workshop, with independent product engineering department and sales center. After years of sales expansion, production practice and technological innovation, we have become China’s fiber-optic interconnection and integrated cabling industry’s most comprehensive strength of high-quality suppliers. We set up a fiber grinding laboratory and precision parts studio and precision mold design and processing center, for customers to quickly provide new product development and ensure the best quality and stability. Our design and production products are mainly used in communication network cabling and telecommunications operators integrated access projects, and widely used in telecommunications, radio and television, electricity, troops, railways and other communication systems, sold to domestic and international markets, and customers to establish stable and long-term cooperation.


Huihongfiber excels in service by providing high quality fiber optic cables and equipment that used in our projects. Huihongfiber has been a wonderful partner. They are an honest and reliable company. I would recommend Huihongfiber to anyone looking for a company with fiber optic products. I consider Huihongfiber a valued business partner. They offer the greatest value of all  Integrity in business. Mohammad Ali, WWTech.

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