GPON SPLITTER (1X 8)

GPON Splitter 1×8 is a specific type of optical splitter used in Gigabit Passive Optical Networks (GPON) to distribute a single optical signal to up to eight different outputs. This allows a single fiber optic line from the central office (CO) or Optical Line Terminal (OLT) to be split and delivered to multiple end-users or devices.

What is a GPON 1×8 Splitter?

• A GPON Splitter 1×8 takes one input optical signal and splits it into eight output signals. This is essential for FTTH (Fiber to the Home) deployments, where a single fiber serves multiple subscribers.

Key Features of GPON 1×8 Splitter

1. Split Ratio: 1×8
   • This indicates that the splitter takes one input and divides it into eight outputs.
   • Each output will carry a fraction of the original signal’s power, distributed evenly across the eight channels.
2. Insertion Loss
   • The insertion loss for a 1×8 splitter typically ranges around 10.5 dB to 11.5 dB.
   • This loss is the reduction in optical power as the signal is split among the outputs.
   • It’s crucial to account for this loss in network design to ensure that the signal remains strong enough at each endpoint.
3. Uniformity
   • Uniformity refers to the variation in signal strength between the output ports.
   • High-quality GPON 1×8 splitters have low uniformity, meaning the signal strength is nearly identical across all eight outputs.
4. Operating Wavelength
   • The GPON 1×8 splitter typically operates over a broad wavelength range of 1260 nm to 1650 nm, making it compatible with various wavelengths used in GPON networks (e.g., 1490 nm for downstream, 1310 nm for upstream).
5. Return Loss
   • High return loss (typically >55 dB) minimizes back reflections, which is essential for maintaining signal integrity in GPON networks.
6. Compact and Flexible Design
   • The 1×8 splitter is available in several form factors:
     • Bare Fiber Splitter: Basic form, usually spliced directly into the fiber.
     • Blockless Splitter: Compact, with fibers in a small protective enclosure.
     • ABS Box Splitter: Housed in a small, robust box for additional protection.
     • LGX Module Splitter: Encased in a module for installation in standard LGX racks.
     • Rack Mount Splitter: Designed for installation in a 19-inch rack, ideal for central offices or data centers.
7. Low Polarization Dependent Loss (PDL)
   • PDL is the variation in insertion loss depending on the polarization state of the input light. Low PDL ensures consistent performance regardless of the polarization state.

Optical splitter is one of the most important components in passive optical networks. It is an optical fiber device with 1/2 input terminals and N output terminals.  In passive optical networks (EPON, BPON, GPON, etc.), it is used to connect the local end and terminal devices and implement optical signal branching and distribution functions.