Lfiber’s 635/1064nm or 635/1550nm fiber optic WDM coupler (wavelength splitter/combiner, or wavelength selective coupler) is based on fused fiber and fused biconical taper (FBT) technology. It obtains light from two inputs with different wavelengths (635/1064nm or 635/1550nm) and feeds it into the same output fiber. When used in the reverse direction, the fused WDM coupler is capable of separating the two wavelengths. It features low Insertion loss, low PDL, high reliability and stability. Related Products ↓

635/1550nm and 635/1064nm High Power Fiber Optic WDM Coupler (Wavelength Selective Coupler, Dichroic Coupler, Wavelength Splitter/Combiner) 

The transmission characteristics of high power 635/1064nm and 635/1550nm fiber opitc WDM coupler are wavelength dependent, so it’s also called wavelength selective coupler, or wavelength combiner/splitter, or dichroic coupler. With excellent FBT method, Lfiber designs and manufactures classical and specialty fused WDM couplers according to the customer request. A broad range of designs (operating wavelengths, fiber types, connector types, package sizes, handling power, etc) are available, please contact us to get more information. Lfiber’s fused WDM couplers are extensively used for CATV networks, telecommunications applications, fiber amplifiers, and many other industries.
 

 

635/1064nm and 635/1550nm Fused WDM Coupler

 

High Power Fiber Optic WDM Coupler 635/1064nm and 635/1550nm Dichroic Beam Combiner/Splitter
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FEATURES OF 635/1064 & 635/1550 NM FIBER OPTIC WDM COUPLER

  • Low Insertion Loss
  • Low PDL
  • High Reliability and Stability
  • High Power Handling

APPLICATIONS OF 635/1064 & 635/1550 NM FIBER OPTIC WDM COUPLER

  • Fiber Laser
  • Instrument
  • R&D

 

635/1064nm and 635/1550nm Fused WDM Coupler Specifications
Port Configuration1x2 or 2x2
Operating Wavelength (nm)635 and 1064; (or) 635 and 1550
Operating Bandwidth (nm)± 5
Insertion Loss @ 1064nm or 1550nm Port (dB)≤0.2
Insertion Loss @ 635nm Port (dB)≤1.0
Isolation @ 1064nm or 1550nm Port (dB)≥20
Isolation @ 635nm Port (dB)≥15
PDL @ 1064nm or 1550nm Port (dB)≤0.1
Return Loss (dB)≥55
Directivity (dB) ≥55
Handling Power (W)5 or 10 (COM to 1064nm Port)
Fiber TypeSMF-28e, HI 1060, HI 1060 FLEX; Others on Request
Working Temperature (°C)-5 ~ +70
Storage Temperature (°C)-40 ~ +85
Pigtail TypePackage (mm)
250μm Bare FiberSteel Tube, Φ3.0 × 54
900μm Loose TubeSteel Tube, Φ3.0 × 54
2mm or 3mm CableModular Box

Notes:
1. Above data are test results without connectors. The insertion loss of one pair of connector is less than 0.3 dB.
2. For high power operation, it is recommended that pigtails should NOT be terminated with fibre-optic connectors at the COM or 1064nm port.
3. These 635/1550nm and 635/1064nm fused WDM couplers are customizable and above specifications are subject to change without notice.
4. For product customization or special requirement, please contact our sales representative.

 

Ordering Information
Fussed
WDM
Coupler		PortWavelengthFiber TypePigtailPackageFiber LengthConnector
1×2635/1064nmSMF-28e250 μmSteel Tube0.50 mNone
2×2635/1550nmHI 1060900 μmModular Box1.00 mLC/UPC
HI 1060 FLEX2 mmCustom …Custom …LC/APC
Custom …3 mmSC/UPC
SC/APC
FC/UPC
FC/APC
Custom …