The C band (1530–1565 nm) is the industry standard for long-distance fiber-optic communication, mainly due to its low signal attenuation. This allows optical signals to travel across hundreds or even thousands of kilometers with minimal loss. As a result, it supports high-capacity networks and enables efficient data transmission over vast distances.

One major advantage of C band products is their full compatibility with erbium-doped fiber amplifiers (EDFAs). These amplifiers boost optical signals without requiring expensive electronic regeneration. Therefore, they improve system performance while reducing infrastructure costs.

Thanks to these optimal transmission properties, C band products play a crucial role in long-haul and ultra-long-haul networks. For instance, they are widely used in undersea fiber-optic cables, intercontinental links, and metropolitan area networks (MANs).

At Polariton, we design electro-optic modulators and photonic integrated circuits (PICs) to operate seamlessly within the C band. Our solutions deliver exceptional performance, scalability, and reliability, even in the most demanding optical communication systems.

Whether you work in telecom infrastructure, operate data centers, or conduct advanced research, our C band products offer clear advantages. They provide high bandwidth, low power consumption, and superior signal integrity, features required for next-generation optical networks.

Our product lineup includes the IQM-C145 modulator chip and the MZ4-C145 multi-channel Mach-Zehnder modulator. These solutions meet the needs of modern high-performance networks.

Finally, this advanced technology is supported by peer-reviewed research. Notable examples include work by T. Blatter et al. (ECOC 2024) and M. Eppenberger et al. (Nature 2023), confirming its leadership in the field.