1. Small-signal modulation and 10 Gb/s data transmission by microdisk lasers based on InGaAs/GaAs quantum well-dots
- Author
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Natalia V. Kryzhanovskaya, Eduard Moiseev, Fedor Zubov, Mikhail Maximov, Sergey Blokhin, Nikolay Kalyuzhnyy, Sergey Mintairov, Marina Kulagina, Nikolay Ledentsov, and Alexey Zhukov
- Subjects
Materials science ,business.industry ,Optical communication ,Laser ,law.invention ,Modulation ,law ,Bandwidth (computing) ,Optoelectronics ,business ,Frequency modulation ,Quantum ,Quantum well ,Data transmission - Abstract
We show that using dense arrays of InGaAs quantum well-dots enables uncooled high-frequency applications with a GHz-range bandwidth. A maximum 3-dB modulation frequency of about 6 GHz was found. The K-limited maximal frequency of 13 GHz was estimated from the modulation response analysis. The experimental values of the energy-todata reaches 1.5 pJ/bit for the smallest diameter under study (10 μm). A 23 μm in diameter microlaser exhibits open eye diagram up to 12.5 Gbit/s and is capable of error-free 10 Gbit/s data transmission at 30°C without temperature stabilization. Our results demonstrate the potential to achieve miniature high-speed on-chip light sources for optical communication applications using lasers with a diameter of only a few micrometers.
- Published
- 2020
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