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O/C Band Products

The O band (1260–1360 nm) is a fundamental wavelength range in optical fiber communications. Valued for its low chromatic dispersion, which minimizes signal distortion over short distances. It was one of the first wavelength bands used in fiber optics due to the early availability of lasers and detectors operating in this range. Today, it plays a crucial role in short-range communication, particularly in intra-data center networks, enterprise networks, and access networks. While maintaining signal integrity over relatively short distances.

The C band (1530–1565 nm) is the most widely deployed wavelength range for long-distance fiber-optic communication. It is favored for its low attenuation, meaning signals can travel over hundreds of kilometers with minimal loss, reducing the need for optical amplification. This makes the C band the standard for long-haul transmission, undersea cables, and dense wavelength-division multiplexing (DWDM) systems. Where multiple data channels are transmitted simultaneously to maximize capacity.

  • MZM-C145: A 145 GHz Mach-Zehnder Modulator, the fastest commercial EO modulator, operating in the O/C band with proven performance beyond 500 GHz. Available in balanced or imbalanced geometry and as a single or 4-channel device.
  • RRM-P70: A 70 GHz plasmonic Ring Resonator Modulator, ideal for IM/DD applications, offering low insertion loss and a differential-drive configuration for efficient modulation.
  • RRM-C110: A 110 GHz Ring Resonator Modulator, designed for compact integration with single, differential, or dual drive options, supporting high-speed electro-optic modulation in the O/C band.

Press on one of the tiles below to find out more.

Related papers:
T. Blatter, Plasmonic Ring Resonator Modulator Demonstrating IM/DD >400G per lane (ECOC 2024)
M. Eppenberger, et al, Resonant plasmonic micro-racetrack modulators with high bandwidth and high temperature tolerance (Nature Photonics, 2023)
D. Bisang, et al, Plasmonic Modulators in Cryogenic Environment Featuring Bandwidths in Excess of 100 GHz and Reduced Plasmonic Losses (ACS Photonics, 2024)
M. Eppenberger, et al, Resonant plasmonic micro-racetrack modulators with high bandwidth and high temperature tolerance (Nature Photonics, 2023)

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