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Compatible NRZ optical transmitters from Belgian suppliers

ODN and passive infrastructure knowledge brief Published 30 Jul 2023

Prepared for preliminary research by the GESTIONVAL ODN knowledge desk. Confirm network topology, split ratio, box or cabinet capacity, joint closure rating and loss budget against current standards and product documentation.

Belgian-compatible NRZ optical transmitters include solutions from XSoptix and research-based silicon photonics transmitters developed at Ghent University, supporting data rates up to 56 Gbps.XSoptix Optical Reference Transmitters

XSoptix offers Optical Reference Transmitter ModBoxes, which are flexible electrical-to-optical converters supporting NRZ modulation with or without impairments, as well as other formats like DPSK, QPSK, QAM, and PAM-4 up to 56 Gbps . These transmitters are suitable for telecom testing, R&D, and laboratory validation, providing a turnkey solution for NRZ signal generation. XSoptix, being a European supplier, can provide shipping and support to Belgian customers.

Ghent University Silicon Photonics Transmitters

Research from Ghent University demonstrates a co-packaged silicon photonic transmitter using a segmented traveling-wave Mach-Zehnder modulator (MZM) driven by a SiGe BiCMOS limiting driver. This transmitter supports NRZ and PAM4 signal generation with tunable voltage swing and driver peaking, achieving high efficiency for short-reach datacenter interconnects . While primarily a research prototype, it highlights locally developed NRZ-capable optical transmitters in Belgium.

Other European-Compatible Options
  • Lucent Technology Limited provides a 40 Gbps InP MZM NRZ transmitter with a DFB laser, compact size, and stable optical power, suitable for NRZ transmission or stress testing . While not explicitly Belgian, European distribution may be available.
  • Thorlabs offers MX10B and MX40B series digital reference transmitters supporting NRZ, RZ, and OOK formats up to 40 Gbps, integrating a Mach-Zehnder modulator, tunable/fixed laser, and RF amplifier . These are widely used in R&D and manufacturing environments.
Key Considerations

When selecting a compatible NRZ transmitter for Belgian applications:

  • Data rate: Ensure the transmitter supports your target NRZ bit rate (e.g., 10–56 Gbps for telecom or datacenter applications).
  • Modulation format: Confirm NRZ support and whether other formats (PAM4, QAM) are needed.
  • Laser wavelength: Check compatibility with your fiber infrastructure (e.g., 1310 nm, 1550 nm).
  • Integration: Consider whether the transmitter integrates with existing test equipment like BERTs or AWGs.
  • Supplier support: XSoptix and European distributors provide local support and shipping to Belgium. These options provide a range of NRZ optical transmitters suitable for Belgian users, from research-grade silicon photonics to commercial reference transmitters for telecom and datacenter testing.

Compatible NRZ optical transmitters from Belgian suppliers - GESTIONVAL ODN INFRASTRUCTURE S.L. [PDF]

Compatible NRZ optical transmitters from Belgian suppliers

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Technical note

This reference is intended for preliminary ODN and passive infrastructure research. Topology, split ratio, box or cabinet capacity, closure rating, cable type, test limits and applicable standards must be verified for the specific project.

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