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October 18, 2025Open Access

Single chip 1 Tb/s optical transmitter with inverse designed input and output couplers

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Authors

KOKaisarbek OmirzakhovAPAli PirmoradiGAGeun Ho Ahn

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Overview

Demonstration shows a record 32-channel optical transmitter with high energy efficiency and minimal error rates.

Key Points

  • Achieved a record modulation energy efficiency of 32 fJ/b at 5 Gb/s/channel, and 106 fJ/b at 32 Gb/s/channel.
  • The system reached an aggregate data rate of 1.024 Tb/s with a bit-error-rate of 1E-12 across all channels.
  • This optical transmitter utilizes 16 carrier wavelengths in the C band, showcasing advanced wavelength-division multiplexing.
  • The design employs low-loss inverse designed grating couplers, enabling up to 25 nm bandwidth.

Cite This Study

Omirzakhov et al. (2025) studied this question.

synapsesocial.com/papers/68f408995de60f8893c6ffb8https://doi.org/10.48550/arxiv.2510.12163
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