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Description

The DK Photonics 980/1550nm Filter Wavelength Division Multiplexer (WDM) is a high-performance optical component designed for advanced fiber optic communication systems. Utilizing environmentally stable thin-film filter technology, this device efficiently combines or separates light at 980nm and 1550nm wavelengths, making it an essential element in modern WDM networks. Its robust construction ensures low insertion loss and minimal polarization dependence, which are critical for maintaining signal integrity in demanding applications.

Engineered for versatility, the 980/1550nm Filter WDM offers a wide operating wavelength range and ultra-flat, wide passband characteristics. This ensures consistent performance across various system configurations, whether used in fiber lasers, Raman amplifiers, or optical monitoring setups. 

The high channel isolation provided by the device minimizes crosstalk and interference, supporting reliable data transmission and system monitoring in complex network environments. Reliability and stability are at the core of this WDM’s design. The device features high-quality anti-reflection (AR) coatings and specialized pigtail processing, enabling it to handle higher optical power levels and withstand challenging environmental conditions. Its compact form factor and customizable options—such as different fiber pigtail diameters, lengths, and connector types—make it adaptable to a wide range of integration requirements in both new and existing fiber optic infrastructures.

Widely adopted in fiber optic amplifiers, transmitters, and instrumentation, the DK Photonics 980/1550nm Filter WDM stands out for its precision engineering and consistent performance. It is an ideal choice for system designers seeking to optimize wavelength management and enhance the efficiency of optical communication networks.

980-1550nm Polarization Maintaining Filter WDM T1550/R980

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Specifications

Operating Wavelength: 1520 nm
Isolation (min): 25 dB
Max Power Handling: 0.3 W
Polarization Maintaining: Yes
Wavelength: 980/1550 nm
Power Handling: <0.3 W, <0.7 W, 1 W, 2 W
Pigtails Diameter: 250 μm bare fiber, 900 μm loose tube
Fiber Length: 0.5 m, 0.8 m, 1.0 m
Connector: FC/APC (others available)
Insertion Loss (IL): Very low (exact value not specified)
Channel Isolation: High
Operating Wavelength Range: Wide
Pass Optical Power (with Connector): 2 W

Got questions about specs? Use the inquiry form to ask.

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Features

  • Low Insertion Loss: Minimizes signal attenuation for superior transmission performance.
  • Ultra Flat Wide Passband: Ensures consistent performance across a broad wavelength range.
  • Wide Operating Wavelength Range: Supports both 980nm and 1550nm, ideal for diverse optical applications.
  • High Channel Isolation: Effectively separates channels to reduce crosstalk and improve signal integrity.
  • Low Polarization Dependent Loss (PDL): Maintains stable performance regardless of polarization changes.
  • High Stability and Reliability: Built with environmentally stable thin-film filter technology for long-term operation.
  • Excellent Environmental Stability: Designed to perform reliably under varying environmental conditions.
  • High Power Handling Capability: Supports up to 2W optical power with specialized pigtail processing and AR coating.
  • Compact and Customizable Package: Multiple pigtail diameters, fiber lengths, and connector options available to suit your system requirements.
  • RoHS Compliant: Manufactured with environmentally friendly materials.

 

Why Choose DK Photonics 980/1550nm Filter WDM?

  • Proven performance in demanding telecom and fiber laser applications
  • Customizable to meet specific project requirements
  • Backed by DK Photonics’ expert support and quality assurance

Applications

  • Wavelength Division Multiplexing (WDM) Systems
    Efficiently combine or separate 980nm and 1550nm signals in advanced WDM networks for increased bandwidth and optimized fiber utilization.
  • Fiber Laser Systems
    Integrate into high-power fiber lasers for pump and signal wavelength management, ensuring stable and efficient laser operation.
  • Erbium-Doped Fiber Amplifiers (EDFA)
    Essential for combining pump (980nm) and signal (1550nm) wavelengths, enabling high-gain and low-noise amplification in optical communication networks.
  • Raman Fiber Amplifiers
    Used for pump and signal wavelength separation and combination, enhancing signal strength and transmission distance in long-haul fiber optic links.
  • Optical Transmitters and Receivers
    Facilitate the integration of pump and signal channels in transmitter and receiver modules for efficient data transmission.
  • Fiber Optic Sensing Systems
    Enable multiplexing of sensing and reference signals, improving sensitivity and reliability in distributed fiber optic sensing applications.
  • Optical System Monitoring
    Allow for real-time monitoring of system performance by separating monitoring wavelengths from main data channels.
  • Test and Measurement Equipment
    Used in optical test benches and instrumentation for precise wavelength selection and channel isolation.
  • CATV (Cable Television) Networks
    Support multiplexing of different wavelength channels for high-quality video and data transmission over fiber.
  • Biomedical and Scientific Research
    Applied in spectroscopy, optical coherence tomography (OCT), and other research fields requiring precise wavelength management.
  • Quantum Communication Systems
    Enable secure transmission by managing quantum and classical channels on the same fiber.
  • High-Power Fiber Optic Applications
    Suitable for high-power handling in industrial and research laser systems due to robust design and heat dissipation options.

Frequently Asked Questions

What is a 980/1550nm Filter Wavelength Division Multiplexer (WDM)?
A 980/1550nm Filter Wavelength Division Multiplexer (WDM) is an optical device that combines or separates light signals at 980nm and 1550nm wavelengths. It utilizes thin-film filter technology to achieve low insertion loss, high channel isolation, and excellent environmental stability, making it ideal for fiber lasers, Raman amplifiers, WDM networks, and fiber optic instruments.
What are the key features of the DK Photonics 980/1550nm Filter WDM?
The DK Photonics 980/1550nm Filter WDM offers low insertion loss, wide operating wavelength range, ultra-flat wide passband, high channel isolation, high stability, and reliability. It also supports high power handling with specialized pigtail processing and AR coating.
What applications are suitable for the 980/1550nm Filter WDM?
This filter WDM is widely used in system monitoring, WDM systems, transmitters, fiber lasers, fiber optical amplifiers, and fiber optic instruments, thanks to its high performance and reliability.
How do I select the correct part number for a custom 980/1550nm Filter WDM?
To select the correct part number, specify the wavelength configuration (980nm pass/1550nm reflect or vice versa), power handling, pigtail diameter, fiber length, and connector type. For example, FWDM-59-S-90-10-FA indicates a 980/1550nm Filter WDM with 0.3W power handling, 0.9mm loose tube, 1.0m fiber length, and FC/APC connectors.
What is the maximum optical power handling capability of the DK Photonics 980/1550nm Filter WDM?
The standard device can handle up to 2W of optical power when connectors are added. For higher power applications, a heat sink package is available upon request. Contact DK Photonics for custom high-power solutions.
How does the addition of connectors affect the performance of the Filter WDM?
Adding connectors increases the insertion loss by 0.3 dB and decreases the return loss by 5 dB per connector. The maximum pass optical power is also limited to 2W when connectors are present.
Can the 980/1550nm Filter WDM be customized for specific requirements?
Yes, DK Photonics offers customization for wavelength configuration, power handling, pigtail diameter, fiber length, and connector type. Customers are encouraged to provide detailed specifications when inquiring about custom parts.

Got more questions? Use the inquiry form to ask the supplier directly.

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