Related Experiment Video
Updated: Jul 29, 2026
08:48
Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
8.2K
Low-κ, narrow linewidth III-V-on-SOI distributed feedback lasers with backside sampled Bragg gratings
Optics Express
|October 19, 2022
Summary
We developed a new III-V-on-silicon photonic laser. This advanced laser offers high performance for optical communication systems.
Area of Science:
- Photonics
- Semiconductor Lasers
- Integrated Optics
Background:
- Heterogeneously integrated lasers are crucial for advanced optical communication.
- Silicon photonics offers a scalable platform for photonic integrated circuits.
Purpose of the Study:
- To demonstrate a high-performance III-V-on-silicon distributed feedback laser.
- To characterize its static and dynamic performance for data transmission.
Main Methods:
- Fabrication of a III-V-on-SOI distributed feedback laser.
- Measurement of laser linewidth, side-mode suppression ratio, output power, and wall-plug efficiency.
- Evaluation of dynamic characteristics including modulation bandwidth and eye diagram measurements.
Main Results:
- Achieved a narrow linewidth of 118 kHz and side-mode suppression ratio > 45 dB.
- Obtained 22 mW output power with 17% wall-plug efficiency.
- Demonstrated 14 GHz modulation bandwidth, 8 ps photon lifetime, and open eye diagrams up to 25 Gb/s.
Conclusions:
- The III-V-on-SOI DFB laser exhibits excellent performance metrics.
- This laser is suitable for high-speed optical communication applications.
- Heterogeneous integration provides a viable path for advanced photonic devices.
