Sub-Assemblies

The world is moving towards tunability. The combination of tunable lasers and dense wavelength division multiplexing (DWDM) allows datacom and telecom industries to expand their network capacity without increasing their existing fiber infrastructure. The market for coherent tunable transceivers will explode in the coming years, with LightCounting estimating that annual sales will double by 2026.

Since lasers are the second biggest power consumers in the transceiver module, laser manufacturers faced a paradoxical task. They must manufacture laser units that are small and energy-efficient enough to fit QSFP-DD and OSFP pluggable form factors while maintaining the laser performance.

Tunable lasers nano-ITLA units

Most Performance in the Smallest Package

These ambitious spec targets became possible thanks to improved photonic integration technology for integrable tunable laser assemblies (iTLAs).

The micro-iTLA format that became widespread in 2015 cut the original iTLA footprint in half. In 2021, the nano-ITLA form factor designed for QSFP-DD and OSFP modules has cut the micro-iTLA footprint almost in half. This size reduction occurred without impacting laser purity and power.

Key Features

  • Size: Nano-iTLA form factor that can fit in a QSFP module.
  • Power: Laser output enough to fulfil 400ZR and 400ZR+ standards.