The LPMUX series of mode multiplexers can be used for high speed multi-mode data transmission via mode-division multiplexing (MDM) as well as for various Quantum technologies. LPMUX is compatible with next generation networks based on few-mode fibre (FMF).

Ultra-Broadband

High Mode Extinction

Low-loss

George Rademacher, NICT, 2018

The outstanding performance of the LPMUX3 has thus enabled us to demonstrate the high potential of few-mode fiber based communication systems, resulting in several high impact publications, including the current record of data-rate/spatial-path-distance-product, being a widely used performance metric for optical transmission systems.

Overview

State-of-the-Art Ultrabroadband Mode Multiplexers

Modular Photonics offers S+C+L band multiplexers with ultra-high mode extinction ratios. We also offer custom solutions.

Benefits

LPMUX3

The LPMUX Series of mode multiplexers offer state-of-the-art performance in terms of all key performance metrics. The LPMUX3-1550 device allows for cost-effective multiplexing of the LP01, LP11a and LP11b modes of a few-mode fibre across the S+C+L bands. The insertion losses are typically around 1-2 dB, the crosstalk is as low as -25 dB, and the mode extinction ratios are > 18 dB.

The inputs are standard single-mode fibre (SMF-28e+) that are connectorized with FC/PC connectors (but can be user-specified). The output few-mode fibre is commercially-available Dual-mode fibre, allowing for ‘plug and play’ use. The devices are packaged in a rigid aluminium casing, resulting in a robust and compact device for use in mode multiplexing applications.

  • Compact Integrated Device
  • Suitable for High-Power Applications (tested to 1 W CW)
  • Wideband Performance (beyond S+C+L Bands).
  • Note: Custom Wavelength Ranges also possible (600-1700 nm).
  • > 18 dB Mode Coupling Ratios.
  • > 18 dB Mode Extinction Ratios.
  • Insertion Loss ~1-2 dB.
  • Polarization Dependent Loss < 0.1 dB.

Modular Photonics products are assembled using industry standard alignment processes, allowing for reliable and low-loss connections for operation in telecommunications environments.

Note: Devices operating within custom wavelength ranges can also be ordered (between 600 -1700 nm).

LPMUX 6

LPMUX6 allows for the selective excitation of 3 mode groups of a few-mode fibre with low insertion losses. The LPMUX6 operates across the S+C+L telecommunications bands. It’s features include:

  • Compact integrated chip
  • Mode-group selective excitation of 6 modes: LP01, LP11a, LP11b, LP02, LP21a, and LP21b
  • S+C+L band operation
  • Low insertion losses
  • High mode extinction ratios

Applications

Space-division multiplexing

Multi-parameter distributed fibre sensing

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