DWDM & EDFA Integration Solutions

Amidst surging data growth and escalating demands, top-tier network performance is essential. Ensure leads the way in meeting the rising need for higher bandwidth capacity with our advanced DWDM (Dense Wavelength Division Multiplexing) and EDFA (Enhanced Erbium-Doped Fiber Amplifiers) solutions.

DWDM’s ability to transmit multiple data streams over a single optical fiber addresses the escalating need for higher bandwidth capacity, crucial for applications such as cloud computing, conference streaming, and data-intensive processes. Complementing this, EDFA enhances network reliability and reach by amplifying optical signals, ensuring uninterrupted data transmission vital for telecommunications.

Our DWDM and EDFA solutions empower your network with unmatched speed, reliability, and scalability, meeting the demands of today and preparing for the challenges of tomorrow.

2 operators quality control base floor machines + screen monitoring
2 operators quality control base floor big machines
all operators base floor quality control machines
Robotic machine of WDM chips front view
Robotic machine WDM chips - sorting chips
Robotic machine WDM chips + operator working

TFF Films

Enhancing the precision and performance of our optical solutions, Ensure harnesses the power of Thin Filter Films (TFF) to achieve tailored wavelength functionalities.
We utilise our TFF production with the option to customise according to specific wavelengths (as per our customer’s specific needs), such as our special skip filter films for DWDM 6S0, 8S0, 10S0, 7S1, 8S1, 9S1, 18S2 … the list goes on.


Outstanding optical performance


High reliability complience with environmental tests


Low PDL & IL


Excelent uniformity / vibration / drop resistance


Full bandwidth applications


Outstanding reliability

chip for electric circuit of EDFA module
Operator using machine that makes EDFA chips 2
Operator placing DWDM inside edfa module
3 operators in WDM machine
Robotic machine WDM chips + operator working


Because we create solutions that are personalised according to our customers individual needs, we can combine different skip filters and normal filter film to balance both cost and attenuation for the best value for money.
We provide OEM solutions in order to adapt our customer’s WDM devices into packaging according to their branding and logo design, because what’s on the outside matters too.
We provide customisable options across a wide selection of products, including DWDM and EDFA.
Ask us about customisation to know more.

WDM close up 2
Operator quality control base floor big machines
operator coupling manually WDM chip
operator coupling manually WDM chip
Operator cleaning WDM coupling process with microscope and screen

Premium quality

We help customers meet the future head-on with an unwavering commitment to premium quality solutions.
We invest heavily in specialised equipment and continuously develop and perfect complex, industry-leading processes in our laboratories and R&D department.
We meticulously control the entire production chain from start to finish, to ensure every product we produce comes off the line flawless.


Our unwavering commitment to research and development fuels our pursuit of cutting-edge solutions.
In rigorous online testing under extreme conditions, our products achieve a remarkable 100% performance score at temperatures ranging from -40℃ to 85℃.
Our Agilent Tuneable Laser Source covers the full band (1250~1700 nm) spectral range testing for all kinds of WDM devices.
Furthermore, our solutions adhere to Telcordia core-1221 and core-1209 reliability standards, exemplifying our commitment to providing connectivity solutions that set new industry standards.

Ask for more details

How we do it

EDFA + DWDM: The perfect pair for long-haul signal transmission. We design, manufacture and fine tune both in-house to make them work symbiotically.

OUR WDM has more to offer

Years of expertise. We’ve invested time to perfect our processes, like our in-house TFF and AWG technologies for DWDM devices. Advanced designs and technologies, like our Compact DWDM. Efficient & cost-effective. Our products meet the strictest reliability requirements and qualifications, including Telcordia core-1221 and core-1209.

Expertly EDFA

Leveraging our in-house design, development, and manufacturing capabilities, we ensure that our EDFA products serve a dual purpose. Not only do they enhance fiber optic communications with DWDM, but they also play a crucial role in our fiber sensing business line. This strategic integration allows Ensure to harness its strengths across multiple domains, delivering exceptional value to our customers.


Our WDM technology holds the potential to revolutionise your network’s performance.
Embrace our WDM solutions to unlock streamlined data transmission, elevate network efficiency, and stay at the forefront of connectivity innovation.

Main features:

  • Low Insertion Loss
  • High Isolation
  • Compact Size
  • Top Quality-Price Ratio


  • Long-Haul Telecommunications
  • Erbium Doped Fiber Amplifiers (EDFA)
  • Digital, Hybrid & AM-Video Systems
  • High-Speed Multi-Wavelength Systems
Factory - assembly line
Factory - ferrules and connectors PLC

Main features:

  • High Isolation & Return Loss
  • Wide Pass Band
  • High Channel Isolation
  • High Stability and Reliability
  • Epoxy free on optical path


  • Line monitoring and WDM Network
  • Telecommunication
  • Fiber optical Amplifier and Access Network
Factory - ferrules and connectors PLC
Factory - assembly line

Main features:

  • Low Insertion Loss
  • High Channel Isolation
  • Epoxy free on optical path
  • High Stability and Reliability


  • Channel Add/Drop
  • DWDM Network
  • Wavelength Routing
  • Fiber Optical Amplifier
  • CATV Fiber Optic System
Factory - ferrules and connectors PLC
Factory - assembly line

Optical Fiber Amplifiers

Ensure’s Optical Fiber Amplifiers (OFAs) are designed with advanced technology and precision engineering to amplify optical signals, extending their reach and enhancing the overall performance of your network.

Main features:

  • Output light power and shape structure can be customised
  • Low noise coefficient
  • Flexible control mode, and human-machine interface form
  • High stability and high reliability
  • Fine temperature control technology is used to make the module have excellent temperature adaptation characteristics
  • High output optical power, large gain, and adjustable range

Wide Applications Range:

  • Long-distance optical transmission system, dense wave division and reuse system
  • National defense and military applications
  • Optical fiber sensing
  • Oil and gas field monitoring
Factory - assembly line
Factory - ferrules and connectors PLC

Main features:

  • High output light power
  • High reliability and stability
  • Modular type, rack type structure available
  • Optical signal-to-noise ratio improved
  • Multiple pump laser wave technology are used to achieve flat and low noise optical signal amplification in the C band range.

Wide Applications Range:

  • Distributed Raman amplification applications
  • Distributed optical fiber sensing
  • Long-distance optical fiber communication without relay link
  • Scientific research.
Factory - ferrules and connectors PLC
Factory - assembly line

Main features:

  • Wide working wavelength range
  • High reliability and good stability
  • High-output peak optical power
  • Low noise index
  • Modular, desktop and rack structure available
  • Adopted with High-speed all-optical amplification mode, transparent transmission protocol, suitable for high-speed signal amplification
  • Built-in drive circuit and logic control circuit for real-time monitoring of key information
  • All status parameters and configuration information can be flexibly adjusted and monitored by the main control software on the host computer.
Factory - ferrules and connectors PLC
Factory - assembly line


The perfect pair for long-haul signal transmission, our EDFA and WDM solutions are designed, manufactured, and fine-tuned in-house to work symbiotically. Customised to specific scenarios, including distance, control method, and gain requirements, our EDFA products ensure optimal performance. Strengthened by lasting relationships with key suppliers, we’ve secured the unwavering strength of our supply chain for EDFA and WDM solutions.

8 years devoted to expertly designing EDFA solutions for countless different project scenarios. We’re prepared to provide instant correct solutions for our customers’ needs.

Premium quality EDFA for the best value, utilising our expertise, mature supply chain for manufacturing, and readily experienced technicians and workers.

MES smart manufacturing system integrated into our EDFA production lines guarantees optimised efficiency. Digital precision integrates product design and execution with continuous feedback loops.