Work

Multi-functional optical microwave generator based on monolithically integrated self-feedback semiconductor laser

Year: 2025

Type: article

Abstract: We propose and fabricate a monolithically integrated two-section semiconductor laser based on direct modulation and optical amplified feedback, where the adjustable optical self-injection feedback could induce rich nonlinear dynamics, further providing access to a single-frequency and wideband microwave source simultaneously. For tunable single-frequency microwave signals, we have achieved a compact electro-optic oscillator system through direct modulation and monolithically integrated amplified feedback, eliminating the need for external modulators and tunable microwave filters, which achieve both compactness and frequency tunability. Meanwhile, for wideband microwave signals, the laser chip could be developed as a monolithic chaotic laser source, which is utilized to generate high-speed random numbers.

Source: Optical Engineering

DOI: 10.1117/1.oe.64.6.065102

Authors: Xiaodong Chen, Hongying Guo, Wei Lin, Huibin Chen

Institution: Quanzhou Normal University

Language: English

Topic: Semiconductor Lasers and Optical Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Natural Science Foundation of China, Department of Education, Fujian Province

Award: G537513779