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Optical Splitter Patent

Optical splitters divide an incoming optical signal into multiple output signals using waveguide structures, relying on multi-mode interference, adiabatic tapering, or mode conversion principles.

Spiral Waveguide Splitters

Some optical splitter patents use a spiral waveguide core surrounded by multiple adjacent waveguide cores. The input optical signal propagates through the spiral, and optical power is gradually coupled into the surrounding waveguides. This design leverages multi-mode interference (MMI), where overlapping modes in the spiral region interfere constructively and destructively to distribute power evenly or according to a desired ratio among the output waveguides.

Spiral designs reduce the footprint of the splitter while maintaining precise splitting ratios and are suitable for integration on photonics chips with electronic components for compact, low-cost systems (US12372720B2).

Trident Structure Splitters

Another approach uses a trident structure, consisting of a tapered first waveguide that receives a multimode optical signal and two oppositely tapered second waveguides arranged on either side. The signal in the first waveguide is adiabatically split into two single-mode signals in the second waveguides. The tapering ensures minimal loss and smooth mode transition, making the splitter suitable for silicon photonics applications where low insertion loss and high fabrication tolerance are critical (EP3561561A1).

Asymmetric Taper and Mode Multiplexer Splitters

Some patents describe splitters that use asymmetric tapers to convert part of the optical signal from the fundamental mode to a higher-order mode. An optical mode multiplexer then separates the modes into different branches, converting the higher-order mode back to the fundamental mode at the output. This allows precise control of splitting ratios, including extreme ratios like 90/10 or 95/5, and supports broadband operation with low loss (US20240159963).

Y-SplittersTraditional Y-splitters divide the optical power evenly between two output waveguides. They are commonly used in Mach-Zehnder interferometers as 3-dB couplers. Modern designs improve tolerance to fabrication variations and reduce sensitivity to layer thickness, enhancing efficiency and reliability in integrated photonics systems (US20150104130).

Summary of Working PrinciplesMulti-mode interference (MMI): Uses interference patterns in a multimode region to distribute optical power. Adiabatic tapering: Gradually changes waveguide dimensions to split modes with minimal loss. Mode conversion and multiplexing: Converts part of the signal to higher-order modes and separates them into different outputs.

Waveguide geometry: Spiral, trident, or Y-shaped structures determine the splitting behavior and footprint. These principles allow optical splitters to achieve precise power distribution, low insertion loss, broadband operation, and compact integration in photonics chips for telecom, datacom, and sensing applications.

Optical Splitter Patent

US20140219608A1

Waveguide array optical power splitters that provide compact, low-cost implementation of optical power splitting for one and two dimensional optical waveguide arrays are disclosed.

WO/2025/139131 OPTICAL SPLITTER, OPTICAL NETWORK

WO2025139131 - OPTICAL SPLITTER, OPTICAL NETWORK SYSTEM, AND METHOD FOR ASSEMBLING OPTICAL SPLITTER. An optical splitter, an optical network system, and a

OPTICAL POWER SPLITTER

Embodiments presented in this disclosure generally relate to optical power splitters (couplers), and more specifically, to optical power splitters (couplers) having an architecture which may be more reliably

OPTICAL POWER SPLITTER

The device operates as a 3-dB splitter (Y-splitter) that divides the input optical energy equally between two output waveguides. Similarly, the device may also function to combine two light beams into a

Optical power splitter

The optical power splitter has one input optical waveguide and N output optical waveguides and splits an optical signal incident from the input optical waveguide into N optical signals.

OPTICAL SPLITTER INCLUDING A TRIDENT STRUCTURE

The PSR and the optical multiplexer in-clude the optical splitter, and the optical splitter includes specifically a trident structure comprising a tapered first waveguide and two oppositely tapered

US Patent Application for OPTICAL POWER SPLITTERS Patent

Optical splitters that split the power in a received optical signal into two output signals with output powers that are similar (e.g., splitting ratios of 50/50, 55/65, 60/40, etc.) are common and have low

U.S. Patent for Optical splitter Patent (Patent # 10,663,668 issued May

This disclosure relates to an optical splitter in which incident light is dispersed into light according to wavelength by a diffraction grating to be emitted from an emission slit.

Fiber Optic Hardware | Fiber Panels, Housings, Racks, and

Fiber Optic Hardware Corning has a wide variety of hardware solutions to choose from to fit your cabling needs. Choose from racks, panels, modules, splice trays, ethernet fiber switches and other

ZYGO | Precision Optical Metrology | Optical Components

ZYGO is a worldwide supplier of optical metrology systems, custom optical components, and complex electro-optical systems design and

US Patent Application for OPTICAL POWER SPLITTERS Patent

Embodiments herein describe optical splitters that receive an optical signal using a single mode waveguide where the signal is in a fundamental mode. An asymmetric taper can be used to convert

U.S. Patent for Optical power splitters incorporating one or more

The disclosure relates to photonics chips and, more specifically, to structures for an optical power splitter and methods of forming a structure for an optical power splitter. Photonics chips are used in many

US20140219608A1

The optical power splitters do not introduce mode dependent loss and preserve polarization, enabling the optical power splitters to be used with multimode and single mode light sources. In one aspect,

US Patent Application for Optical power splitter Patent Application

An optical power splitter is disclosed that includes a semiconductor substrate, a core layered on the semiconductor substrate, functioning as a transmission medium for optical signals composed of multi

WO2015057484A1

Definitions Embodiments presented in this disclosuregenerally relate to optical power splitters (couplers), and more specifically, to optical power splitters (couplers) having an architecture which

CN1228933C

An optical power splitter that minimizes chip size and manufacturing cost is disclosed. The optical power splitter has one input optical waveguide and N output optical waveguides, and splits the optical signal

Optical power splitter

Optical power splitter - Patent 1380862 2. Description of the Related Art In general, an optical power splitter is used for channeling input light into several different paths and

US7277620B2

A splitter includes an optical splitter arrangement positioned with the interior of a housing. An input cable enters the housing. At least one boot protrudes outwardly from an end wall of the splitter housing. At

Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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