Polarization Maintaining V Groove Fiber Array Quartz Silicon 1 To 64 Channel High Extinction Ratio

  The PM Fiber Array is a key component for multi-channel polarization-maintaining optical path assembly. Unlike ordinary fiber arrays, the PM array uses panda-shaped polarization-maintaining fibers precisely assembled in a high-precision quartz or silicon V-groove substrate. This not only achieves submicron-level fiber core alignment, but more importantly, it provides precise angular calibration of the fiber stress bar (polarization axis). Through comprehensive control of core spacing, end-face grinding angle, and polarization axis direction, the PM Fiber Array can simultaneously maintain high extinction ratio, low insertion loss, and excellent long-term stability in multi-channel parallel applications, making it ideal for next-generation coherent optical systems, PM photonic chip packaging, and various polarization-sensitive optical platforms.

  The array utilizes 250 μm Panda PM fiber (Corning PM15-U25D) and optimized assembly processes. Depending on the number of channels, the typical extinction ratio range is approximately 15–25 dB:

• 1/2 Channels: ER ≥25 dB
• 4 Channels: ER ≥23 dB
• 8 Channels: ER ≥21 dB
• 16 Channels: ER ≥20 dB
• 32 Channels: ER ≥16 dB
• 64 Channels: ER ≥15 dB

 Covering diverse needs from single-channel precision experiments to high-channel-count array systems.

  High-precision V-groove machining and fiber positioning processes control fiber core height and lateral position deviations within the micrometer range, effectively reducing insertion loss and minimizing loss differences between channels, facilitating unified system power calibration and balancing.

  During PM array assembly, the angle of the fiber stress bar relative to the array plane is strictly controlled. Combined with the FC/APC Slow Axis Alignment Key, this ensures a uniform polarization direction across the entire array. Users do not need additional complex polarization axis adjustments when interfacing with PM waveguide devices, PM collimating arrays, or PM optical chips, significantly improving assembly efficiency and repeatability.

  Supports 1 / 2 / 4 / 8 / 16 / 32 / 64 channels, with a standard V-groove core pitch of 127 / 250 / 500 μm (±0.5 μm). Non-standard customization is also available based on actual chip layout or system optical path requirements, facilitating adaptation to different PLC, SiPh, InP, or glass-based photonic devices.

  The array substrate can be selected from Quartz or Silicon, offering excellent thermal stability and mechanical strength. The entire device operates at a temperature of -5～65 ℃, with a storage temperature of -40～85 ℃, suitable for long-term online use in data centers, laboratories, and most engineering sites.

  Provides two main ordering series: PMSFA-(Single Channel) and PMGFA-(Multi-Channel), which can be freely combined:

• Number of Channels (01/02/04/08/…/64)
• Substrate Material (Q=Quartz, S=Silicon)
• Core Pitch (e.g., 127 μm, 250 μm)
• Fiber Length (1.0 m, 1.2 m, 1.5 m or longer)
• Fiber Type/Sheath (Bare/Loose/Tight, etc.) and Color
• End Face Grinding Angle (0°/+8°/-8°)

  This allows you to list commonly used models on the product page while reserving sufficient customization space.

• Substrate Material: High-precision Quartz or Silicon V-groove substrate
• Applications: Direct coupling with PM photonic chips, PLC waveguides, waveguide devices, or multi-channel collimated arrays
• Grinding Angle: Standard 90° end face (±0.3°), optional 0°, +8°, ​​-8° bevel grinding (N/A/V, etc. encoding)

• Number of Channels: 1 / 2 / 4 / 8 / 16 / 32 / 64 CH
• Standard Chip Pitch: 127 / 250 / 500 μm (±0.5 μm)
• Non-standard pitch can also be specified according to customer requirements for matching specific chips or optical platforms

• Fiber Type: 250 μm Panda PM fiber (Corning PM15-U25D)
• Standard Length: 1.0 ± 0.1 m, multi-channel versions support ribbon fiber, and custom lengths of 1.2 m, 1.5 m, etc. are also available.
• Sheath Type:
  • B = 250 μm Bare Fiber
  • L / T = 900 μm Loose / Tight Buffer
  • Color: C = Transparent, W = White, B = Blue or customer specified

• Standard Connector: FC/APC, Slow Axis Alignment Key for aligning with polarization-maintaining fiber optic slow axis
• Connectorless or other types (such as SC/APC, LC/APC) are also available for custom packaging or secondary processing.

• Operating Temperature: -5～65 ℃
• Storage Temperature: -40～85 ℃

  Meets the temperature requirements of most experimental and engineering applications.

• PM photonic waveguide devices (PM waveguides / PLC device coupling)
• PM collimator arrays / PM combiners
• Multi-PM fiber collimators
• Different laser sources
• Various polarization-sensitive coherent communication, photonic integration, and precision optical systems