The 1480/1550nm fused WDM coupler (wavelength combiner/splitter) is a very important passive wavelength division multiplexing (WDM) device, which forms an integral part of an erbium-doped fiber amplifier (EDFA), where the pump laser light and signal light at these two wavelengths are multiplexed within the amplifying (erbium-doped) fiber. On the other hand, if these two lights are injected into the same input port, they would separate out at the two output ports. Lfiber’s 1480/1590nm and 1480/1550nm fused WDM couplers feature low Insertion loss, low PDL, high reliability and stability. Related Products ↓

1480/1590nm and 1480/1550nm Fused WDM Coupler (Wavelength Selective Coupler, Wavelength Combiner/Splitter)

This 1480/1590nm and 1480/1550nm fused WDM coupler are wavelength dependent, so they are also called wavelength selective couplers or wavelength combiners/splitters, or dichroic couplers. With excellent FBT method, Lfiber designs and manufactures classical and specialty fiber optic WDM couplers according to the customer request. A broad range of operating wavelengths and different designs are available, please contact us to get more information. Lfiber’s fused-fiber WDM couplers are excellent choices and extensively used for CATV networks, telecommunications applications, fiber amplifiers, and many other industries.

As an alternative to 1480/1590nm and 1480/1550nm fused WDM coupler, Lfiber’s 980/1550nm (980/1590nm) fused WDM coupler can also combine signal light and pump light in an EDFA.

You may also interested in fused fiber optic WDMs and couplers with different operating wavelengths, fiber types, connector types, handling power, package sizes, etc. We also support customizing these fiber optic components for specific applications on request.

 

1480/1590nm and 1480/1550nm Fused WDM Coupler

 

1480/1590nm and 1480/1550nm Fused WDM Coupler
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1480/1590nm and 1480/1550nm WDM FEATURES

  • Low Insertion Loss
  • Low PDL
  • High Isolation
  • High Reliability and Stability

1480/1590nm and 1480/1550nm WDM APPLICATIONS

  • EDFA (Erbium-doped Optical Fiber Amplifier)
  • Fiber Laser
  • Laboratory

 

1480/1550 (1480/1590) WDM Coupler Specifications
Parameters1480/1550 (1480/1590) Fused WDM Coupler
Configuration1x2, or 2x2
Operating Wavelength (nm)1480 & 1550, or 1480 & 1590
Operating Bandwidth (nm)± 5
GradePA
Insertion Loss (dB)≤0.3≤0.35
Isolation (dB)≥15≥14
PDL (dB) ≤0.1≤0.1
Directivity (dB)≥55
Fiber TypeCorning® SMF-28e
Working Temperature (°C)-40 ~ +85
Pigtail TypePackage (mm)
250μm Bare FiberSteel Tube, Φ3.0 × 60 or Φ3.0 × 54
900μm Loose TubeSteel Tube, Φ3.0 × 60
2 mm or 3 mm CableCustom-sized ABS Box

1. Above data are test results without connectors. The insertion loss of one pair of connector is less than 0.3 dB.
2. Specifications of 1480/1590nm and 1480/1550nm fused WDM coupler are customizable and subject to change without notice.
3. For product customization or special requirement, please contact our sales representative.

 

Ordering Information
Fused WDM CouplerPortGradeWavelengthFiber TypePigtailPackageFiber LengthConnector
1×2P1480/1550SMF-28e250 μmΦ3 × 600.50 ± 0.05 mNone
2×2A1480/1590900 μmΦ3 × 541.00 ± 0.1 mLC/UPC
2 mmCustom …Custom …LC/APC
3 mmSC/UPC
SC/APC
FC/UPC
FC/APC
Custom …