AI Article Synopsis
- - This study analyzes the performance of a commercial photonic-crystal surface-emitting laser (PCSEL) using small-signal measurements and bit-error-rate tests, revealing its radio frequency characteristics for the first time.
- - The PCSEL demonstrates a potential for a wider optical bandwidth compared to traditional vertical-cavity surface-emitting lasers, achieving a maximum bandwidth of around 2.32 GHz at a bias of 340 mA.
- - The findings suggest that the PCSEL can support high-speed data transmission, with a maximum bit rate of 1.2 Gbps and a rise time of 186.16 ps at 500 Mbps, making it a suitable candidate for future high-speed optical communication technologies.
Article Abstract
This study conducts comprehensive performance analyses of a commercial photonic-crystal surface-emitting laser (PCSEL) via small-signal measurement and the bit-error-rate test. Meanwhile, the radio frequency characteristics of the PCSEL are unveiled for the first time. Compared to the vertical-cavity surface-emitting lasers, the PCSEL shows great potential for a broader optical bandwidth that is benefited from the high optical-confinement factor. A maximum bandwidth of around 2.32 GHz is experimentally observed when the PCSEL was biased at 340 mA. Moreover, a theoretical calculation was applied to shed light on the characteristics of the small-signal measurement, providing a deep insight into the corresponding intrinsic response model. The signal transmission capability of the PCSEL was investigated as well. The maximum bit rate and corresponding rise time transmitted at 500 Mbps are 1.2 Gbps and 186.16 ps, respectively. Thus, a high-speed PCSEL can be realised with a shrunk form factor, serving as a promising candidate for the next-generation light sources in high-speed optical communication.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9481776 | PMC |
| http://dx.doi.org/10.1186/s11671-022-03728-x | DOI Listing |
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