Keyvaninia S, Verstuyft S, Pathak S, Lelarge F, Duan G-H, Bordel D, Fedeli J-M, De Vries T, Smalbrugge B, Geluk E J, Bolk J, Smit M, Roelkens G, Van Thourhout D
Photonics Research Group, Ghent University-imec, Ghent, Belgium.
Opt Express. 2013 Jun 3;21(11):13675-83. doi: 10.1364/OE.21.013675.
Compact multi-frequency lasers are realized by combining III-V based optical amplifiers with silicon waveguide optical demultiplexers using a heterogeneous integration process based on adhesive wafer bonding. Both devices using arrayed waveguide grating routers as well as devices using ring resonators as the demultiplexer showed lasing with threshold currents between 30 and 40 mA and output powers in the order of a few mW. Laser operation up to 60°C is demonstrated. The small bending radius allowable for the silicon waveguides results in a short cavity length, ensuring stable lasing in a single longitudinal mode, even with relaxed values for the intra-cavity filter bandwidths.
紧凑型多频激光器是通过使用基于粘合剂晶圆键合的异质集成工艺，将基于III-V族的光放大器与硅波导光解复用器相结合来实现的。使用阵列波导光栅路由器的器件以及使用环形谐振器作为解复用器的器件均显示出阈值电流在30至40 mA之间且输出功率为几毫瓦量级的激光发射。已证明激光器在高达60°C的温度下仍可工作。硅波导允许的小弯曲半径导致腔长较短，即使腔内滤波器带宽的值较为宽松，也能确保在单纵模下实现稳定的激光发射。
