Open AccessPhotonic integrated circuits based hybrid integration for wavelength beam combining
Author(s) -
Siwei Zeng,
Xiaolei Zhao,
Lance Sweatt,
Lin Zhu
Publication year - 2020
Publication title -
optics letters/optics index
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.408463
Subject(s) - arrayed waveguide grating , photonic integrated circuit , optics , optoelectronics , photonics , materials science , optical amplifier , laser , lasing threshold , electronic circuit , semiconductor laser theory , waveguide , wavelength , wavelength division multiplexing , semiconductor , physics , quantum mechanics
In this Letter, we have demonstrated wavelength beam combining (WBC) through hybrid integration of photonic integrated circuits (PICs) to significantly reduce the size, weight, and operation power of the laser combining system. The hybrid integration WBC includes III/V semiconductor optical amplifiers (SOAs), which provide gain, and the silicon nitride PICs, which perform as the external cavity. We first show that the arrayed waveguide grating (AWG) -based hybrid laser defines the lasing wavelength through the AWG passband. We then demonstrate that the AWG successfully forms multiple channel lasers by combining SOAs in the hybrid platform.