Dugen Core Optoelectronics Technology (Suzhou)

Dugen Core Optoelectronics Technology (Suzhou) Co., Ltd., also known as Dogain, is a company specializing in the design and manufacturing of high-end laser chips. Founded in 2017 and headquartered in Suzhou, China, the firm operates in the upstream of the optoelectronics industry chain. Dogain's core business involves the entire production process from high-power semiconductor laser chip design, epitaxial growth, and chip fabrication to packaging, testing, and characterization.

The company's product portfolio includes high-power single emitter and single bar diode laser chips, single-mode semiconductor laser modules, Vertical-Cavity Surface-Emitting Lasers (VCSELs), fiber-coupled diode laser modules, bar stacks, and ceramic submount products. These components are utilized across various sectors, including industrial processing, telecommunications, intelligent and 3D sensing, medical aesthetics, and scientific research. Dogain has developed proprietary technologies such as monocrystalline SiC thermal sinks to address heat dissipation challenges in high-power laser chips.

While one source described the company as unfunded as of early 2025, other reports indicate it has secured significant funding. One report mentions a Series B round of $15.3M in December 2020. Another source states a total funding amount of $113M from 28 investors, including Changjiang Growth Capital, CongRong Investment, and Goldenway Capital.

Keywords: semiconductor laser chips, optoelectronics, high-power diode lasers, VCSEL, fiber coupling, laser chip fabrication, epitaxial growth, industrial lasers, telecom lasers, medical lasers, optical sensing, single-mode lasers, laser modules, ceramic submount, SIC thermal sink, optronics, diode laser stacks, industrial processing, intelligent sensing