TECHNICAL DATASHEET

1xN Single Mode Fused Fiber Coupler (1x3 to 1x32)

Multiport 1xN Fused Single-Mode Fiber Coupler (1x3, 1x4, 1x8, 1x16, 1x32) manufactured with fused biconical taper (FBT) technology. Provides uniform optical power distribution across 1310nm and 1550nm bands with low excess loss, high port-to-port uniformity, and compact tube or cassette packaging.

Technical Specifications

Parameter
Specification
Unit
Port Configuration
1x3, 1x4, 1x6, 1x8, 1x16, 1x32
-
Operating Wavelength
1310, 1550, or 1310/1550 Dual Window
nm
Operating Bandwidth
±15 (Single Window), ±40 (Wideband)
nm
Max. Insertion Loss (1x4)
6.8 (A Grade), 7.2 (P Grade)
dB
Max. Insertion Loss (1x8)
10.2 (A Grade), 10.6 (P Grade)
dB
Max. Insertion Loss (1x16)
13.6 (A Grade), 14.1 (P Grade)
dB
Max. Uniformity
0.6 (1x4), 0.8 (1x8), 1.2 (1x16)
dB
Min. Directivity
55
dB
Min. Return Loss
55
dB
Max. PDL
0.10 (1x4), 0.15 (1x8), 0.20 (1x16)
dB
Fiber Type
Corning SMF-28e+ Fiber
-
Operating Temperature
-40 to +85
°C
Package Dimensions
dia. 3.0 x 40 mm / dia. 3.0 x 54 mm / dia. 3.0 x 60 mm
mm
Technical Datasheet Note
Tree coupler configuration cascaded inside metal tubes or ABS/aluminum cassettes. With connectors, IL increases by 0.3 dB and RL decreases by 5 dB.
Configuration and ordering notes

Configuration parameters include output port count (1x3 to 1x32), operating wavelength (1310nm, 1550nm, or dual window), and packaging format (steel tube or cassette box).

Selection Guidance: Review extinction ratio formulas, axis alignment, and splicing tolerances in our PM Fiber Components & Extinction Ratio Guide ↗ or Fiber Polarizer Selection Guide ↗.

Key Applications

Telecommunications distribution networks; FTTH splitter nodes; Optical monitoring tap arrays; Multi-point fiber sensor systems.

Package Drawing

089 1xN Single Mode Fused Fiber Coupler (1x3 to 1x32), Port Configuration: 1x3, 1x4, 1x6, 1x8, 1x16, 1x32 – KernsOptic
Package reference for 1xN Single Mode Fused Fiber Coupler (1x3 to 1x32). Confirm the final configuration during engineering review.

Need an exact configuration?

A quotation review can begin with the application, quantity and available component information. Wavelength, optical power, fiber and termination details can be clarified with engineering.