Abstract
Photodiodes and integrated optical receivers operating at 1.55 micrometer (μm) wavelength are crucial for long-haul communication and data transfer systems. In this paper, we report C-band InAs quantum dash (Qdash) waveguide photodiodes (PDs) with a record-low dark current of 5 pA, a responsivity of 0.26 A/W at 1.55 μm, and open eye diagrams up to 10 Gb/s. These Qdash-based PDs leverage the same epitaxial layers and processing steps as Qdash lasers and can thus be integrated with laser sources for power monitors or amplifiers for preamplified receivers, manifesting themselves as a promising alternative to their InGaAs and Ge counterparts in low-power optical communication links.
Original language | English (US) |
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Pages (from-to) | 3519-3527 |
Number of pages | 9 |
Journal | ACS Nano |
Volume | 14 |
Issue number | 3 |
DOIs | |
State | Published - Mar 24 2020 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy
- General Materials Science
- General Engineering