Changguang Huaxin 500W 888nm Stable Wavelength Fiber-Coupled Pump Module Wins Jung Technology Innovation Award!
07/05
2024
On May 15, the 2024 Laser Processing Industry RONGGE Technology Innovation Award ceremony was held in Suzhou. After extensive online voting by industry users and rigorous evaluation by industry experts, Changguang Huaxin's 500W 888nm wavelength-stabilized fiber-coupled semiconductor laser module won the RONGGE Technology Innovation Award!
The RONGGE Technology Innovation Award aims to recognize innovative products and technologies with outstanding contributions in the industry. With its strict selection criteria and authoritative review team, it provides a platform for technology innovators worldwide to showcase their strength.
Expert Comments
Self-developed 888nm chip
This series of products uses high-power 888nm single-bar chips independently developed and produced by Changguang Huaxin, and ensures long-term stable and reliable operation of the module through efficient chip heat dissipation packaging and precise optical packaging technology.
Higher power, lower cost
Changguang Huaxin's 888nm wavelength-stabilized fiber-coupled module, with a 220μm output fiber core diameter, outputs up to 500W. The high power output brings lower unit material cost and fewer integrated units used, effectively reducing costs and increasing efficiency.
High optical-to-optical conversion efficiency
This product can achieve a nearly flat-top beam output. When the flat-top pump beam is coupled into the doped crystal, the pump energy is uniformly absorbed across the cross-section of the crystal. Compared to Gaussian beams, which concentrate energy in the center, the flat-top pump results in a more uniform thermal distribution inside the crystal with a smaller thermal gradient, thereby reducing the thermal lens effect of the solid-state laser. The optical-to-optical efficiency under operating current is greater than 50%.
Excellent spectral locking performance
The gain spectrum of semiconductor lasers changes with loading current and temperature, making it difficult to stabilize the output wavelength of LDs at different power levels. This product achieves a wavelength drift of about ±0.5nm during 10% to 100% power output, spectral half-width less than 0.8nm through spectral locking, a wavelength temperature coefficient of 0.01nm/°C, and can realize full-current spectral locking with pib (power in band) ≥ 99%.
Stable and reliable performance
Changguang Huaxin adopts the same coupling module design and process as industrial fiber laser pump sources, with high process maturity and good production repeatability. After years of application verification at client sites, the product performance is stable and reliable in industrial environments.
Complete product models
Changguang Huaxin's solid-state laser pump module product models are complete, covering wavelengths of 808nm, 878.6nm, and 888nm, with power ranging from 25W to 500W. The spot energy distribution is uniform, wavelength locking can be achieved across the full power range, and the products are stable with good consistency.
This award is the organizing committee's recognition of Changguang Huaxin's decade-long dedication to semiconductor laser research and production. Changguang Huaxin insists on being customer-centered, providing professional, reliable, and more competitive products and services to create value for customers.
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