Design and Fabrication of a 400GHz InP-Based Arrayed Waveguide Grating with Flattened Spectral Response

Abstract

A four-channel 400 GHz channel spacing InP-based arrayed waveguide grating with a flattened wavelength response by employing a multimode interference coupler at the input waveguide of the filter is prepared. The fabricated devices show a flattened spectral response with a broadened 3-dB bandwidth up to 3.5 nm, interchannel non-uniformity of <0.7 dB and excellent match to the simulation results.

An Array Consisting of 10 High-Speed Side-Illuminated Evanescently Coupled Waveguide Photodetectors Each with a Bandwidth of 20 GHz

“…[2−4] Photonic ICs in indium phosphide (InP) are also the key to next-generation optical components due to their potential for performance, reliability, footprint size and especially cost efficiency in mass deployment. [5,6] Low-cost, high-sensitivity, and high-performance photodetector arrays operating at 1.55 µm wavelength are crucial for communication, measurement, and especially for parallel optical link applications and WDM systems. [7,8] There has been a great deal of interest demonstrated in photodetectors (PDs) with side-illuminated evanescently coupled waveguide photodetectors (ECPDs) due to the fact that not only do they allow one to overcome the well-known compromise between responsivity and electrical bandwidth, [9] but also they offer the ease of integration with other optoelectronic devices to realize complex systems.…”