Changguang Huaxin Integrated Grating Chip Module Wins the Ronger Technology Innovation Award!
05/23
2025
On May 20th, the 2025 Laser Processing Industry - RONGGE Technology Innovation Award Ceremony was held in Suzhou, where Changguang Huaxin based on On-chip wavelength-stabilized diode chip 976nm 135/155μm 300W fiber-coupled module Won the Optical Components and Other Supporting Categories RONGGE Technology Innovation Award!
Expert Comments
The product is expected to break through the technical bottleneck of traditional pump sources, promote the further development of fiber laser technology, and meet the market demand for higher power, better beam quality, and higher reliability.
On-chip wavelength-stabilized diode chip
976nm 135/155μm 300W fiber-coupled module
Ytterbium-doped fiber lasers generally use the 976nm pump band to achieve higher power and better beam quality. However, as fiber lasers are increasingly applied in high-end manufacturing, scientific research, and other fields, more stringent performance requirements are placed on pump sources. The 976nm pump solution increasingly shows issues such as narrow absorption peak bandwidth, wavelength drift, and limitations of traditional external cavity VBG wavelength locking schemes.
Changguang Huaxin on-chip wavelength-stabilized diode chip 976nm 135/155μm 300W fiber-coupled module Adopts a unique epitaxial chip design to achieve linear power output over a wide temperature range, ensuring stable laser performance under different environmental conditions.
>55℃ wide temperature wavelength locking
Measured data shows that this module can achieve full current spectral locking over a wide temperature range of 10℃~65℃, with spectral FWHM <0.4nm, requiring no additional external cavity optical components, effectively reducing product cost and improving environmental adaptability.
Low temperature wavelength drift coefficient (0.07nm/℃)
A wavelength temperature drift coefficient of 0.07nm/℃ ensures that the pump light spectrum remains within the gain absorption band under wide temperature operation, guaranteeing stable gain bandwidth, which helps the laser output stable single-mode or few-mode laser and improves laser quality.
Low wavelength locking time (<10ms)
Measured data shows that the time from module light emission to stable laser output wavelength locking is less than 10ms. This performance ensures rapid response and high-precision control in practical laser applications, suitable for various high-demand laser scenarios.
Chip reliability (2 batches 1000h no failure!)
The grating-integrated chip passed accelerated life testing for 1000 hours in 2 batches with no failures! The stable grating-integrated chip ensures stable laser output, reduces downtime caused by grating failures, and guarantees long-term stable operation of fiber lasers in practical applications.
The launch of this product breaks the technical dilemma of the 976nm pump solution, meeting the market demand for higher power, better beam quality, and higher reliability. Relying on the company's complete IDM R&D and mass production platform, Changguang Huaxin will continue to develop next-generation products around market needs, empowering downstream applications with laser technology.
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