1. Product Title

1–128 Channel PM Fiber Array with 127/250 μm Pitch and Custom Polish Angles

2. Product Overview

The GracyFiber PM Fiber Array (PM FA) is a multi-channel polarization-maintaining fiber array designed for optical systems requiring controlled polarization orientation, defined fiber positioning, and compact multi-fiber integration. The product supports configurations from 1 to 128 fibers, with 127 μm and 250 μm core-pitch options depending on channel count. It supports Panda PM fiber as standard and Bow-tie PM fiber as an option, together with selectable slow-axis or fast-axis reference and configurable axis orientation.

3. Key Features

• 1 to 128 fiber channels
• 127 μm and 250 μm core-pitch configurations
• Axis alignment accuracy ≤ ±2°, typical ±1°
• Panda PM fiber standard; Bow-tie PM fiber optional
• Slow-axis or fast-axis polarization reference
• 0°, 45°, 90°, or customized axis orientation
• 8°, 41°, 82°, 90°, or customized polish angles
• Supports FC, LC, SC, E2000, MT, MPO, and MMC connectors

The supplied PM Fiber Array specification also defines insertion loss, return loss, PER, coating, fiber length, and temperature characteristics for the product family.

4. Applications

• Photonic Integrated Circuits (PIC)
• Silicon Photonics
• Quantum Communication Systems
• Laser Systems and Processing Equipment
• Fiber Optic Sensing Systems
• Advanced Optical R&D
• Laboratory Optical Setups
• OEM Photonic System Integration

These applications are explicitly listed in the supplied PM Fiber Array documentation.

5. Technical Specifications

General Optical & Mechanical Specifications

The DOCX specification confirms the IL, PER, polarization reference, axis orientation/alignment, RL, PM fiber type, coating, length, connector, and temperature information.

Core Pitch by Channel Count

The source document also identifies 127 μm and 250 μm as the supported core-pitch configurations.

Core Pitch Tolerance

Polarization Extinction Ratio

The two PER grades are also shown in the supplied specification.

Fiber Array Dimensions

The channel-dependent W/H/L dimensions are provided in the supplied product specification.

6. Configuration & Customization Options

Available Options

The source document specifically confirms customized polish angle, axis orientation, fiber length, and multiple connector configurations.

7. Detailed Product Description

The GracyFiber PM Fiber Array is designed to arrange multiple polarization-maintaining fibers at controlled spacing while maintaining a defined polarization-axis relationship. This makes it suitable for optical assemblies where both fiber position and polarization orientation are important at the coupling interface.

Configurations range from a single fiber to 128 fibers. Core pitch varies with channel count: 250 μm is available for the 2-fiber version, both 127 μm and 250 μm are specified for selected 4–12 fiber configurations, while higher-channel-count versions use 127 μm pitch. Core-pitch tolerance is also specified by channel range, from ±0.3 μm for lower-count configurations to ±1.0 μm for 96- and 128-fiber arrays.

For polarization management, the array supports both slow-axis and fast-axis references, with 0°, 45°, 90°, or customized axis orientations. Axis alignment accuracy is specified at ≤ ±2°, with a typical value of ±1°. Panda PM fiber is the standard configuration, while Bow-tie PM fiber is listed as an optional fiber type.

The fiber end interface can be configured with 8°, 41°, 82°, 90°, or customized polish angles. This provides flexibility when matching the PM fiber array to different chip-coupling, photonic packaging, or optical-system geometries.

Connector options include FC, LC, SC, E2000, MT, MPO, and MMC, while 250 μm coating, 900 μm loose tube, and ribbon formats are available. These configuration options allow the same PM FA platform to be adapted to different optical packaging and OEM integration requirements.

8. Application Scenario

Application 1 — Silicon Photonics and PIC Fiber Coupling

Photonic integrated circuits and silicon photonics systems can require several optical fibers to be positioned at controlled pitch relative to optical coupling interfaces.

The PM Fiber Array provides an ordered multi-fiber interface with 1–128 channels, selectable 127/250 μm pitch, and configurable polish geometry. Where polarization-sensitive optical structures are involved, the specified slow/fast-axis reference and controlled PM fiber orientation provide an additional design parameter for the coupling interface.

PIC and silicon photonics are explicitly identified as applications in the supplied product documentation.

Application 2 — Fiber Optic Sensing Systems

Polarization-maintaining fibers are useful in optical systems where the polarization state must remain defined through the fiber path.

For multi-channel sensing assemblies, the PM Fiber Array allows several PM fibers to be arranged within a compact mechanical interface while maintaining specified axis orientation. Panda PM fiber is standard, Bow-tie PM fiber is optional, and the polarization reference can be based on either the slow or fast axis.

Fiber optic sensing is one of the stated applications for this product.

Application 3 — Laser and Optical R&D Systems

Laser equipment and laboratory optical systems may require precise multi-fiber alignment together with selectable fiber end-face angles and polarization orientation.

The available polish angles, axis orientations, connector options, and standard/custom fiber lengths provide multiple ways to integrate the PM Fiber Array into experimental or OEM optical assemblies. Laser systems, processing equipment, and advanced optical R&D setups are included in the supplied application list.

9. Why GracyFiber

GracyFiber's product portfolio covers Fiber Arrays, Lens Fiber Arrays, PM Fiber Arrays, MPO/MTP connectivity, WDM components, PLC/FBT devices, and other polarization-maintaining passive optical components.

For the PM Fiber Array specifically, the supplied configuration range covers:

• 1–128 fiber channels
• Multiple core pitches
• Multiple PM fiber types
• Slow-axis and fast-axis references
• Multiple axis orientations
• Multiple polish angles
• Multiple connector interfaces
• Lid and lidless structures
• Standard and customized dimensions

This allows PM Fiber Array projects to be specified around the actual photonic interface instead of using one fixed mechanical configuration.

10. Related Products

11. FAQ

1. How many fibers can the GracyFiber PM Fiber Array support?

The PM Fiber Array is available from 1 to 128 fibers. Core pitch and mechanical dimensions depend on the selected channel count. For example, 127 μm pitch is used for higher-density configurations, while 250 μm or 127/250 μm options are specified for selected lower-channel configurations.

2. What polarization-maintaining fiber types and axis orientations are available?

Panda PM fiber is specified as the standard PM fiber, while Bow-tie fiber is available as an option. The polarization reference can be the slow axis or fast axis, and axis orientation can be specified as 0°, 45°, 90°, or customized. Axis alignment accuracy is ≤ ±2°, with a typical value of ±1°.

3. Can the PM Fiber Array be customized for different photonic applications?

Yes. The supplied specification lists customizable polish angle, axis orientation, fiber length, and FA dimensions. Connector options include FC, LC, SC, E2000, MT, MPO, and MMC. For a specific PIC, silicon photonics, sensing, laser, or laboratory application, please provide the required fiber count, pitch, PM fiber type, axis orientation, polish geometry, and mechanical dimensions.

12. Call to Action

For a PM Fiber Array RFQ or engineering review, please send GracyFiber the following information:

• Fiber count
• Required wavelength
• Core pitch
• PM fiber type
• Slow-axis or fast-axis reference
• Axis orientation
• Polish angle
• Fiber coating / protection
• Fiber length
• Connector type
• Lid or lidless requirement
• Required FA dimensions
• Target IL / RL / PER specifications
• Application or coupling-interface drawing

This information helps define the PM Fiber Array configuration before quotation.