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How does a PLC Splitter work?

2025-07-31

The PLC Splitter (Planar Waveguide Splitter) operates based on integrated optical waveguide technology and the multimode interference effect. It achieves optical power distribution by fabricating a precise optical waveguide structure on a quartz substrate using semiconductor processing. The detailed principles are as follows:

1. Core Waveguide Structure

A Y-branching or multimode interference (MMI) waveguide design is employed. By controlling the waveguide paths etched into the quartz substrate, the input optical signal is proportionally distributed to multiple output ports.
The waveguide's refractive index profile (high-index core and low-index cladding) constrains the optical signal's propagation direction, reducing energy leakage.

2. Splitting Process

Input Optical Coupling: The input optical fiber is aligned with the waveguide chip via a spot mode converter (SSC), and the optical signal enters the Y-branch waveguide.
Power Distribution: Light waves interfere in the branch waveguides, and the waveguide width and branching angle are designed to achieve either equal (e.g., 1:2, 1:4, etc.) or unequal power distribution.
Output Coupling: The split optical signal is output through the output fiber array, completing the splitting process.

3. Wavelength Insensitivity

The quartz waveguide efficiently splits optical signals in the 1260-1650nm band, eliminating the need for structural adjustments for specific wavelengths.

4. Difference from Fused-Band Taper (FBT) Splitters

The PLC Splitter utilizes semiconductor technology to achieve optical splitting, resulting in high stability and uniformity. FBT splitters, on the other hand, rely on fused-band taper technology, are wavelength-sensitive, and have a limited number of channels.

The key to this technology lies in the precision of the waveguide design and the reliability of the packaging process, ensuring low insertion loss (typically 3.5dB to 24dB) and high splitting uniformity (within ±0.5dB).

Szczegóły wiadomości

Do domu > Aktualności >

Aktualności Firmowe O-How does a PLC Splitter work?

Wydarzenia

Aktualności

Sprawy

How does a PLC Splitter work?

2025-07-31

1. Core Waveguide Structure

A Y-branching or multimode interference (MMI) waveguide design is employed. By controlling the waveguide paths etched into the quartz substrate, the input optical signal is proportionally distributed to multiple output ports.
The waveguide's refractive index profile (high-index core and low-index cladding) constrains the optical signal's propagation direction, reducing energy leakage.

2. Splitting Process

Input Optical Coupling: The input optical fiber is aligned with the waveguide chip via a spot mode converter (SSC), and the optical signal enters the Y-branch waveguide.
Power Distribution: Light waves interfere in the branch waveguides, and the waveguide width and branching angle are designed to achieve either equal (e.g., 1:2, 1:4, etc.) or unequal power distribution.
Output Coupling: The split optical signal is output through the output fiber array, completing the splitting process.

3. Wavelength Insensitivity

The quartz waveguide efficiently splits optical signals in the 1260-1650nm band, eliminating the need for structural adjustments for specific wavelengths.

4. Difference from Fused-Band Taper (FBT) Splitters

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Kable aktywne optyczne AOC

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DWDM Mux Demux

AWG Mux

CCWDM

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Układ AWG

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Rozdzielacz światłowodowy PLC

Rozdzielacz kasetowy Plc

Rozdzielacz PLC do montażu w szafie

Kable aktywne optyczne AOC

AAWG

Macierz światłowodowa

CWDM Mux Demux

DWDM Mux Demux

AWG Mux

CCWDM

Filtr WDM

Chip rozdzielacza PLC

Układ AWG

Patchcord światłowodowy

Pigtail światłowodowy

Optyczny moduł nadawczo-odbiorczy

Szczegóły wiadomości

Aktualności Firmowe O How does a PLC Splitter work?

Aktualności

Sprawy

How does a PLC Splitter work?

Aktualności Firmowe O-How does a PLC Splitter work?

Aktualności

Sprawy

How does a PLC Splitter work?