Latest Article: Absorption density control in waveguide photodiode-analysis, design, and demonstration
Absorption density control in waveguide photodiode-analysis, design, and demonstration
A modal analysis is conducted for analyzing the absorption profile of high power waveguide photodiodes designed for analog optical link. The excitation of guided modes with large filling factor in the absorber is identified as a limiting factor for the performance of waveguide photodiodes at high optical power, including power handling capability, and bandwidth-efficiency product. A waveguide photodiode design, which spatially separates the input waveguide from the absorber in the lateral direction, is analyzed and experimentally demonstrated to suppress the excitation of mode with large filling factor. Photocurrent>60 mA under − 4 V bias is measured, with 0.80 A/W responsivity. This design illustrates that high power handling capability can be achieved without compromising the bandwidth-efficiency product.
中国光学学会成为FOC主办单位
经新闻出版总署研究,同意Frontiers of Optoelectronics (《光电子前沿》)主办单位由高等教育出版社有限公司、华中科技大学变更为高等教育出版社有限公司、华中科技大学、中国光学学会,其中高等教育出版社有限公司为主要主办单位。(新出审字(2012)663号)