Bare Fibre Optic Splitter 1x4

A Bare Fiber Optic Splitter 1x4 (1 meter) is a passive optical device designed to split a single optical input into four outputs. This splitter uses bare fibers (no connectors or housing) and is ideal for splicing into custom fiber installations or integrating into enclosures and trays.

Key Features

Splitter Type

• 1x4 configuration:

  • 1 input fiber

  • 4 output fibers

• Common split ratio: Even 25% each, though custom ratios are possible.

Fiber Length

• Typically 1 meter of fiber on both input and each output leg.

• Fiber ends are bare (unjacketed, cleaved or pre-stripped).

Fiber Type

• Available in:

  • Single-mode (SMF, e.g., G.652D or G.657A1)

  • Multimode (MMF, e.g., OM1/OM2/OM3/OM4 depending on application)

• Standard cladding diameter: 125 µm

Operating Wavelength Range

• Single-mode: 1260–1650 nm (supports full telecom band)

• Multimode: Typically 850 nm or 1310 nm depending on the fiber type

Optical Performance

• Insertion Loss: ~7.0 dB typical (for 25% split per output)

• Return Loss: ≥ 55 dB (for SMF), lower for MMF

• Uniformity: Good power balance among output ports (±1 dB typical)

• PDL (Polarization Dependent Loss): ≤ 0.2 dB (SMF)

• Operating Temperature

• -40°C to +85°C (suitable for indoor and outdoor environments when enclosed)