What Powers Critical Data Infrastructure?
AI data center infrastructure is not only a computing challenge. It is also an optical communications challenge.
As 800G networks enter deployment and 1.6T systems move through testing and early productization, data must travel rapidly and reliably between GPUs, switches, racks, and facilities. This speed requirement increases the importance of photodiodes that convert optical signals into electrical data.
InGaAs photodiodes and germanium photodiodes from GPD Optoelectronics support critical functions across the data center buildout, including:
- Detecting optical signals at 1310 nm and 1550 nm
- Supporting optical power monitoring and signal-integrity testing
- Enabling laser alignment, BERT and OTDR applications
- Helping validate emerging high-speed optical systems
Germanium provides a cost-effective option for shorter-reach, high-signal applications, while InGaAs offers greater speed, sensitivity and lower-noise performance for more demanding systems.
As AI infrastructure scales, the optical network must scale with it.
Read the full article entitled, “InGaAs and Germanium Photodiodes: Critical Infrastructure for Data Center Buildout Plans.”
About GPD Optoelectronics
Founded in 1973, GPD Optoelectronics began by making high-quality germanium transistors, but since the early 1980s the company manufactures both germanium and indium gallium arsenide photodiodes and multi-element photodetectors. In addition to offering a variety of off-the-shelf products, GPD specializes in providing customized parts that are uniquely tailored to customer applications. GPD has the agility to design and deliver prototypes of custom products often within just a few weeks.
GPD’s products include:
- Photodiodes
- Position sensing photodiodes
- Specialty photodiodes
- Packaging Options
- Multi-Cell Photoreceiver (MCPR) Development Kits
To request more information or a quotation for these or other GPD products, contact IL Photonics.

