School of Engineering, University of Glasgow, Glasgow, G12 8LT, United Kingdom.
Opt Lett. 2011 Nov 1;36(21):4188-90. doi: 10.1364/OL.36.004188.
The monolithic integration of four 1.5 μm range AlGaInAs/InP distributed feedback lasers with a 4×1 multimode-interference optical combiner, a curved semiconductor optical amplifier, and an electro-absorption modulator using relatively simple technologies--sidewall grating and quantum well intermixing--has been demonstrated. The four channels span the wavelength range of 1530 to 1566 nm with a channel spacing of 12 nm. The epitaxial structure was designed to produce a far-field pattern as small as 21.2°×25.1°, producing a coupling efficiency with an angled-end single-mode fiber at twice that of a conventional device design.
已经采用相对简单的技术（侧壁光栅和量子阱混合）实现了四个 1.5μm 范围的 AlGaInAs/InP 分布式反馈激光器、4×1 多模干涉光组合器、弯曲半导体光放大器和电吸收调制器的单片集成。这四个通道的波长范围为 1530 至 1566nm，通道间隔为 12nm。外延结构的设计使得远场模式小至 21.2°×25.1°，与传统器件设计相比，与倾斜端单模光纤的耦合效率提高了一倍。
