Shining with Chips, Returning with Honors! DoGain Wins the Laser Device Innovation Award at the 9th SECRETLIGHT Awards

Forge ahead with innovation and pursue the light! From June 11 to 12, the 2026 World Laser Manufacturing Conference & the 9th SECRETLIGHT Awards Ceremony was grandly held in Shenzhen. Dr. Liu Yuxian from DoGain was invited to attend the conference and deliver a keynote speech. During the highly anticipated award ceremony of the SECRETLIGHT Awards, our independently developed 980nm Single-Mode Uncooled Semiconductor Laser Chip & 3PIN Ultra-Compact Module stood out from numerous competitors after rigorous selection including expert review and online voting, and was honored with the Laser Device Innovation Award at the 9th SECRETLIGHT Awards.

Glory Won by Outstanding Strength

As a core pump source for optical signal amplifiers, the award-winning 980nm single-mode uncooled semiconductor laser chip and 3PIN ultra-compact module adopts the 3PIN uncooled ultra-compact packaging technology. It breaks through the technical bottleneck of high-temperature performance for uncooled devices, enabling stable operation of the single-mode chip across a wide temperature range of 0~85℃. The fiber-coupled module delivers a reliable output power of over 300mW. Boasting compact size, low power consumption, wavelength locking across full current and temperature ranges, high output power, superior high-temperature resistance and broad spectral width, the product has passed stringent Telcordia reliability qualification. It supports long-term operation in uncooled environments and is widely applied to miniaturized EDFAs, AI data communication, coherent optical modules, intelligent sensing and other fields.

Five Core Technological Innovations

1、High-temperature Low-loss Epitaxial Structure Design Technology

To address carrier leakage and intensified non-radiative recombination at high temperatures, we optimized the quantum well depth, barrier height and waveguide layer structure, improving carrier confinement capability and internal quantum efficiency.

2、Collaborative Design Technology for High-power Single-mode Waveguide and Longitudinal Structure

Combining narrow-ridge single-mode waveguide with graded longitudinal structure, this design ensures fundamental transverse mode confinement while optimizing current spread and optical field distribution. It achieves a perfect balance between transverse mode stability and uniform current distribution under high power operation.

3、Low-defect and High-uniformity Epitaxial Growth Control Technology

By precisely regulating growth temperature, V/III ratio and interface transition, we reduce material defects and impurity incorporation, and enhance material uniformity and device consistency. This effectively mitigates efficiency degradation and ensures long-term service stability under high temperature and high power conditions.

4、High-reliability Cavity Facet Technology

We lower the optical power density and local temperature rise on cavity facets. Combined with optimized cavity facet passivation and coating processes, surface state absorption and heat accumulation are reduced, greatly enhancing the facet resistance to catastrophic optical damage.

5、High-reliability Packaging and Fiber Coupling Technology

The angled wedge-tipped fiber (FTA) direct coupling technology delivers an extremely compact structure that meets the requirements of 3PIN miniaturized packaging. The collaborative optimization of chips and FTA realizes wavelength locking over wide temperature and large power dynamic ranges. The specially designed miniaturized packaging structure satisfies the strict demands for compact size and high reliability of uncooled modules, and the product fully complies with the Telcordia GR-468 standard.

980nm Single-Mode Uncooled Semiconductor Laser Chip

3PIN Ultra-Compact Module

DoGain has built a full-band single-mode laser product portfolio covering 808~1550nm, including DFB wavelength-locked and FP wavelength-unlocked single-mode semiconductor laser chips and modules. Our self-developed 1064nm single-mode DFB chip and ultra-compact module feature narrow linewidth, low noise and high spectral stability. Serving as a high-performance seed light source for ultrafast laser systems, it is widely used in cutting-edge fields such as quantum computing, quantum precision measurement and laser gyroscopes. The products support customized single-mode/polarization-maintaining fiber output, and are compatible with both continuous-wave and pulsed operating modes, catering to diverse high-end applications including optical fiber communication, optical sensing, ultrafast seed sources, laser medical treatment and quantum research.

Technical Sharing to Empower the Industry

During the conference, Dr. Liu Yuxian delivered a keynote speech titled Breakthrough Innovation, Stable Temperature Drift Control — New Generation Low-Temperature-Drift 976nm Laser Chips and Modules. He elaborated on the R&D background, key technical challenges, core innovations, performance advantages and diverse application scenarios of the new-generation low-temperature-drift 976nm laser chips and modules. The speech fully demonstrated DoGain’s cutting-edge technological accumulation and independent innovation strengths in developing laser chips with low temperature drift, high stability and high reliability, winning high recognition and favorable comments from attending experts and industry peers.

Chase the Light, Forge Ahead with Honors

Winning the SECRETLIGHT Awards is a high recognition from the industry of DoGain’s technological innovation capability and product strength, as well as a testament to our long-term dedication to the R&D of high-end semiconductor laser chips and adherence to independent research and development. As a leading manufacturer of high-end semiconductor laser chips and modules in China, DoGain always upholds independent innovation. We keep exploring core technologies for laser chips and modules, breaking through technical barriers and developing products with superior quality, performance and reliability. Empowering industrial upgrading with cutting-edge technologies and driving the high-quality development of China’s laser industry, we will continue to forge ahead steadily into the future.