PROCEEDINGS ARTICLE | May 30, 2017
Proc. SPIE. 10249, Integrated Photonics: Materials, Devices, and Applications IV
KEYWORDS: Tunable lasers, Waveguides, Photodiodes, Semiconductor lasers, Optical communications, Integration, Integrated circuits, Brain-machine interfaces, Photonic integrated circuits, Integrated circuit design, Multimode interference devices
In this paper, we demonstrate a regrowth-free monolithically integrated photonics circuit which consists of a tunable, single-frequency, low-linewidth 1x2 multimode-interferometer laser diode (MMILD) and two waveguide devices connected with the two arms of the laser and electrically isolated by deep etched slots. In this photonic integrated circuit (PIC), the 1x2 MMILD showed similar tuning and single frequency performance as the discrete 1x2 MMILD, with more than 30dB side mode suppression ratio (SMSR). The integrated waveguide devices could be used as semiconductor optical amplifiers, photodiodes or electro-absorption modulators, thus the integrated circuit could be used for different functions. The integrability of the MMI lasers indicates its potential applicability in more advanced low-cost topological PICs.
