Abstract

Two photonic integrated circuits (PICs) are coupled to form a hybridly integrated semiconductor ring laser in the telecom C band with an intrinsic linewidth of (158±21) Hz. This is, to the best of our knowledge, the first time an InP active–passive platform is used in conjunction with an integrated low-loss resonator to obtain a narrow-linewidth laser implemented using generic foundry platforms. The presented results pave the way for a hybrid integrated platform for microwave photonics (MWP), as the demonstrated device includes multiple active–passive components, and its narrow optical linewidth can potentially be translated to a narrow-linewidth microwave signal. Furthermore, as the laser is based on hybrid integration of two PICs from generic foundry platforms, there is a path to reproducible and low-cost devices.

© 2022 Optica Publishing Group

A 10-kHz intrinsic linewidth coupled extended-cavity DBR laser monolithically integrated on an InP platform

Rakesh Ranjan Kumar, Andreas Hänsel, Mónica Far Brusatori, Lars Nielsen, Luc M. Augustin, Nicolas Volet, and Martijn J. R. Heck
Opt. Lett. 47(9) 2346-2349 (2022)

Intra-cavity coherent combining of DBR lasers on an InP generic foundry platform

Rakesh Ranjan Kumar, Lars Nielsen, Nicolas Volet, and Martijn J. R. Heck
Opt. Lett. 48(7) 1614-1617 (2023)

Photonic integrated circuit with sampled grating lasers fabricated on a generic foundry platform for broadband terahertz generation

Moon-Hyeok Lee, Simon Nellen, Francisco Soares, Martin Moehrle, Wolfgang Rehbein, Moritz Baier, Bjoern Globisch, and Martin Schell
Opt. Express 30(12) 20149-20158 (2022)

MoS₂ hybrid integrated micro-ring resonator phase shifter based on a silicon nitride platform

Zexing Zhao, Ziming Zhang, Jiatong Li, Zhenyuan Shang, Guoqing Wang, Jinde Yin, Hao Chen, Kai Guo, and Peiguang Yan
Opt. Lett. 47(4) 949-952 (2022)

Hybrid integrated ultralow-linewidth and fast-chirped laser for FMCW LiDAR

Liwei Tang, Liangbo Li, Jiachen Li, and Minghua Chen
Opt. Express 30(17) 30420-30429 (2022)