Abstract: Embodiments disclosed herein include photonics package with Faraday rotators to improve efficiency. In an embodiment, a photonics package comprises a package substrate and a compute die over the package substrate. In an embodiment, the photonics package further comprises a photonics die over the package substrate. In an embodiment, the compute die is communicatively coupled to the photonics die by a bridge in the package substrate. In an embodiment, the photonics package further comprises an integrated heat spreader (IHS) over the package substrate, and a Faraday rotator passing through the IHS and optically coupled to the photonics die.