All Categories
History
This section provides an overview for optical attenuators as well as their applications and principles. Also, please take a look at the list of 23 optical attenuator manufacturers and their company rankings. Here are the top-ranked optical attenuator companies as of February, 2025: 1.Viavi Solutions, Inc., 2.DiCon Fiberoptics, 3.DLL Partners.
Table of Contents
Categories Related to Optical Attenuators
An optical attenuator is a device that attenuates optical fiber signals to adjust them to an appropriate strength.
An optical attenuator is used to prevent differences in optical signal strength caused by differences in optical transmission distance from adversely affecting transmission equipment. Also to prevent damage to equipment due to saturation of the light-receiving element when the optical signal strength received by a light-receiving device is too strong.
There are two types of optical attenuators: a fixed optical attenuator, which has a fixed attenuation level, and a variable optical attenuator, which has an adjustable attenuation level.
Optical attenuators are used to protect equipment by attenuating the intensity of optical signals when the amount of light received by the light-receiving element is saturated and may damage the equipment. This includes CATV systems where the output of the light source device is high or in optical fiber cables with short transmission distances.
They are also used to prevent variations in optical signal strength at the receiving end of wavelength division multiplexing (WDM) systems.
Optical attenuators are sometimes used to create a simulated communication environment when testing the transmission performance of an optical communication system or the error rate due to attenuation. By intentionally attenuating optical signals with optical attenuators, the maximum transmission performance of optical communication equipment can be measured.
Optical attenuators are devices that are inserted between optical fibers to attenuate the intensity of optical signals. There are several methods to achieve attenuation of optical signals.
Other mechanical optical attenuator methods include bending an optical fiber or inserting a shield on the optical signal route.
*Including some distributors, etc.
Sort by Features
Sort by Area
Viavi Solutions, Inc. is based in Arizona, USA, and is a manufacturer of network testing and measurement products that was established in 2015 following the split of the JDS Uniphase Corporation into Viavi Solutions and Lumentum Holdings. The company produces wireless network optimization or testing tools, optical fiber inspection tools, and network performance troubleshooting software. It also offers cloud-native software platforms for automation, inventory, and quality assurance applications. The company’s products are used mainly by clients in the telecom, data center, and IT industries.
DiCon Fiberoptics, founded in Richmond, California, in 1986 is a manufacturer of fiber optic components and switching solutions. The company's product portfolio includes Fiber Optic Cables, optical transceivers for data centers, telecommunications, and networking applications, optical switches that enable efficient routing of optical signals, passive components like couplers, splitters, and attenuators and Fiber Optic Test Equipment. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Information Technology.
Keysight Technologies, Inc. was founded in 1939 and headquartered in Santa Rosa, California. Keysight is a global developer and manufacturer of electronic design and test solutions to communications, networking, aerospace, defense, and government, automotive, energy, semiconductor, electronic, and education industries. Keysight’s communications solutions group solutions include electronic design automation software; radio frequency and microwave test solutions, hardware and virtual network test platforms and software applications, as well as optical laser source solutions. Keysight’s electronic industrial solutions group offers various design tools and verification tools. Keysight offers product support, technical support, and training and consulting services. It sells its products through direct sales force, distributors, resellers, and manufacturer's representatives.
Avantes was established in 1994, headquartered in Apeldoorn, the Netherlands, as a manufacturer in developing fiber-optic spectroscopy instruments and systems. Avantes is a famous pioneer in the advancement and use of compact spectrometers. The company is engaged in the manufacturing of laboratory instruments and instrumentation systems. Avantes is a company that specializes in producing advanced fiber-optic spectroscopy systems. These systems are designed to provide precise measurements within the electromagnetic spectrum's ultra-violet, visible, and near-infrared ranges.
YOFC, founded in 1988 and based in China, is a manufacturer and provider of communicational optical fiber and related accessories. Its product range includes optical transceivers, active optical cables, specialty optical fibres, RF coaxial cables, submarine cables, and more. The company offers services such as system integration and communication engineering design. YOFC serves to global telecommunications industry, public utility, medication, transportation, and Oil & Chemistry industries in more than 90 countries.
ARCoptix S.A is a manufacturer of optical measurement systems that was founded in 2005 in Neuchâtel, Switzerland. The company specializes in producing fourier transform infrared (FTIR) equipment and liquid crystal systems. Its products include FTIR spectrometers for analyzing organic and inorganic compounds, variable spiral plates capable of radial or azimuthal polarization, and modular gas analyzers for field measurement purposes. The company also offers product compatible software and accessories for added functionality, and OEM modules for customers with unique project specifications. Some of its notable clients include CERN, NASA, and the University of Tokyo.
Shenzhen OPTICO Communication Co., Ltd was established in April 2008, in China as a manufacturer of optical products. The company has a wide range of optical active and passive products which includes Polarization Maintaining 5G Series, Patch Cords that are available in various transmission modes, optical cable types, and connector types. There are also Fiber pigtails, jumpers, adapters, connectors, and cables along with other related products such as splitters, terminal boxes, Optical chips and etc. which have extensive use in the 4G/5G, Data Centers, Telecom, and Cloud Computing industry.
Bwnfiber, founded in China in 2002, is a manufacturer and solution provider of professional fiber optic and FTTx products. It offers a range of fiber optic products, including fiber optic splice closures, fiber cables, and fiber optic loss test kits, as well as services such as drawing and 3D mold product development. The company has its own factory to produce telecom communication products for network building systems and is certified as ISO9001, GB/T24001-ISO14001, and GB/T28001-2001.
EXFO is a Quebec, Canada-based developer and manufacturer of analytics solutions for network equipment manufacturers, communications service providers, and data centers. Originally founded in 1985, the company provides solutions for clients to more easily transition to 5G, fiber optic, and cloud-native networking. The company's specialized product lineup includes lab and manufacturing testing equipment such as bit error rate testers (BERTs), waveform generators, and optical modulation analyzers, as well as field network testing tools like fiber inspection probes and optical power meters (OPMs). These supply clients like Nokia, Facebook, and the U.S. Department of Defense.
OZ Optics Limited, founded in Ontario, Canada in 1985, is a manufacturer of supplier of fiber optic products for existing and next-generation optical networks. The company's product portfolio includes Fiber Delivery Systems, High Power Fiber Optic Components, Polarization Maintaining Components, and Fiber Optic Sensor Systems. The company serves various markets, including automotive & electric vehicles, renewable energy & energy storage, and electronics &IT infrastructure. OZ Optics also offers services such as engineering support, customized projects and technical support.
Shenzhen YHT Broadband Equipment Co. Ltd., founded in 2003 and headquartered in Shenzhen, is a manufacturer and supplier of fiber optic communication equipment. The company's products include high-density fiber optic modules, fiber optic patch panels and distribution boxes, and fiber optic accessories such as fiber optic protection sleeves, plastic adapter panels, and fiber optic drop cable clamps. These products are used in data centers, internet service providers, and large cryptocurrency mining operations. Its manufacturing facility, Huizhou YHT Broadband Equipment Co. Ltd., is located in YHT Industry Park, China.
T&S Communication Co., Ltd., established in 2000 and based in Shenzhen, China, is a manufacturer and supplier of optical communication components. The company's optical products include pre-terminated cable assemblies, connectivity accessories (WDM), PLC splitters, and MT ferrules. It is famous in OEM and ODM services for optical fibre termination products. The company offers optic connectivity products and FBG sensing products to clients from over 50 countries and regions and it holds ISO 9001:2015 certification.
RUIK, established in 2013 and based in Dongguan, China, is a manufacturer and supplier of fiber laser passive components. The company’s product range includes polarization-maintaining fiber components, high-power laser isolators, multi-mode pump combiners, and fused products, serving industries like fiber laser, telecom, medical, and scientific research. Offering design, engineering, manufacturing, supply chain management, and technical support services, the company is devoted to delivering efficient and effective fiber laser passive components while prioritizing customer satisfaction. Holding ISO 9001:2015 certification, its quality management meets international standards.
Laser Components was founded in 1982 and is headquartered in Olching, Germany. The ISO 9001:2015 certified company also has locations and distributors across Europe and the United States. The company is a manufacturer and researcher for semiconductor technologies and dielectric coatings. Chemicals used include silicon, lithium tantalate, and deuterated L-alanine doped triglycene sulphate, known as DLATGS. The company’s product segments include IR Components, Photo Counters, Lasers, and Fiber Optics. The company’s services include repair, calibration, tool servicing, and job coatings.
Spring Optical Communication, founded in China in 2006, is a manufacturer and supplier of fiber optic termination boxes, PLC splitters, fused fiber couplers, and fiber optic connectors. Its main products include a wide range of fiber optic vertical joint splice closures, fiber optic PTO boxes, and fiber optic terminal boxes. The company provides affordable eyeglasses, vision screening, and training for non-profits, social entrepreneurs, government agencies, and corporate clients through its VisionSpring program.
Anfkom Telecom, founded in China in 2012, is a professional manufacturer and supplier of fiber optic products and accessories. Its major products include FTTH ODN Solution, Fiber Optic Components, Fiber Optic Cable, Active Fiber Products, and fiber optic accessories. The company also provides various additional services for its customers, including quick engineering and prototyping services, production and kitting of cable assemblies, and custom fiber solutions to customers from all over the world.
DLL Partners, founded in 2002 and located in Poland, is a manufacturer and supplier of complex telecommunication and teleinformatics solutions, based on fiber optic technology. The company offers a range of products including wave division multiplexing systems, fiber optic splicing closures, and fiber optic distribution frames. Moreover, it provides services such as site inspection, comprehensive supply of fiber optic network equipment, and localization and resolution of optical line accidents. These products and services cater to internet suppliers and distributors.
OE-Photonics, founded in China in 2006, is a company that specializes in the design and manufacture of optical fiber components and solutions. It offers a range of products, including standard and customized optical fiber components such as MEMS optical switches and matrix switches. The company was awarded the "Product Innovation Award" at the 2023 8th CFCF Optical Interconnection Conference and Communication Awards for its C+L band tunable filter, which covers the C and L wavelength bands in the optical communication industry.
OF-LINK, founded in China in 2007, is a supplier of polarization-maintaining fiber components. Its offer includes polarization beam splitter combiners, variable optical attenuators, fixed in-line optical attenuators, fiber optic in-line polarizers, pump laser diode protectors, and more. The company provides fiber optic components for various applications, including telecommunications, data centers, and research and development. Its manufacturing facilities have been ISO 9001:2008 certified, supplying products compliant with ROHS, IEC, and Telcordia requirements.
Shanghai Tarluz Telecom Tech, founded in China in 2015, is a fiber optic supplier. It designs, develops, manufactures, and sells fiber optic cabling, connectivity, management, and systems solutions, with an emphasis on fiber optic solutions like data center cabling networks, FTTx/FTTH turnkey solutions, etc. The company delivers network infrastructure to meet the expanding requirements for data centers, connectivity, and cable management, as well as offering products in special fiber optics applied in diverse markets, including industrial, medical, etc.
Nia Fiber Africa Limited, founded in Kenya in 2018, is a supplier of fiber optic products. It emphasizes research, development, production, and sales of FTTH products, as well as providing complete solutions for standard products or customized products in the FTTH field. The company was the first to market offerings for many of the fiber optic products that meet today's industry standards, as well as provide products and solutions that help service providers, network operators, and home developers.
Ranking as of February 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Viavi Solutions, Inc. |
10.5%
|
| 2 | Shenzhen OE Photonics Co.,Ltd. |
7.9%
|
| 3 | DiCon Fiberoptics |
7.9%
|
| 4 | DLL Partners |
5.3%
|
| 5 | Avantes |
5.3%
|
| 6 | Nia Fiber Africa Limited |
5.3%
|
| 7 | Thorlabs Inc. |
5.3%
|
| 8 | Keysight Technologies |
5.3%
|
| 9 | OZ Optics Limited |
5.3%
|
| 10 | EXFO |
5.3%
|
Derivation Method
The ranking is calculated based on the click share within the optical attenuator page as of February 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
10 | 50.0% |
|
United States of America
|
4 | 20.0% |
|
Canada
|
2 | 10.0% |
Japan
|
1 | 5.0% |
|
Netherlands
|
1 | 5.0% |
|
Switzerland
|
1 | 5.0% |
|
Germany
|
1 | 5.0% |
49 products found
49 products
IGOL TECHNOLOGIES, INC.
120+ people viewing
Fast Response
2 models listed
Optoscience Co., Ltd.
60+ people viewing
Last viewed: 2 hours ago
■Summary Fiber-coupled AO modulators (FCAOMs) provide a simple and robust system for fiber laser intensity modulation, providing direct control ove...
Optoscience Co., Ltd.
80+ people viewing
Last viewed: 3 hours ago
■Summary Acousto-optics devices use acoustic waves to create a diffraction grating within an optical medium. As the power of the RF signal changes,...
Tokyo Instruments, Inc
70+ people viewing
Last viewed: 20 minutes ago
Standard Response
■Product overview This product is a variable attenuator suitable for spectroscopic measurements using fiber multichannel spectrometers such as Stel...
Tokyo Instruments, Inc
70+ people viewing
Last viewed: 20 minutes ago
Standard Response
■Summary By transmitting a laser beam through a diffraction grating formed on a glass substrate (fused silica), the output of the laser beam can be...
Tokyo Instruments, Inc
60+ people viewing
Last viewed: 20 minutes ago
Standard Response
■Summary The 990-0076 series is an attenuator using a polarizing beam splitter cube for beam diameters up to 10 mm. The 990-0077 and 990-0078 seri...
Hubei Kogyo Co., Ltd.
50+ people viewing
Last viewed: 1 day ago
YS-5020 is a variable optical attenuator. It responds faster than the YS-5010, with a response time of 30 microseconds (average). ■Features ・Smal...
Hubei Kogyo Co., Ltd.
60+ people viewing
Last viewed: 1 day ago
YS-5020 is a variable optical attenuator. It responds faster than the YS-5010, with a response time of 30 microseconds (average). ■Features ・Smal...
Hubei Kogyo Co., Ltd.
50+ people viewing
Last viewed: 1 day ago
YS-5220 is a variable optical attenuator. It applies the magneto-optical Faraday effect, and exhibits maximum attenuation when no current is applie...
Hubei Kogyo Co., Ltd.
50+ people viewing
Last viewed: 1 day ago
YS-5220 is a variable optical attenuator. It applies the magneto-optical Faraday effect, and exhibits maximum attenuation when no current is applie...
Hubei Kogyo Co., Ltd.
40+ people viewing
Last viewed: 1 day ago
YS-520 is a free space optical attenuator. Free space optical attenuators do not have optical fibers. Fast response type with an average response t...
Hubei Kogyo Co., Ltd.
40+ people viewing
Last viewed: 1 day ago
YS-520 is a free space optical attenuator. Free space optical attenuators do not have optical fibers. Fast response type with an average response t...
Alp Systems Co., Ltd.
50+ people viewing
Last viewed: 1 hour ago
Used to adjust the light intensity to an appropriate range. ■Fixed optical attenuator (attenuator) Type Connector/polishing method/attenuation amo...
