Hangzhou Brandnew Technology Co., Ltd. is one of China's leading manufacturers and premier suppliers of advanced 300mw 500mw 980nm unmounted laser bar. Operating a state-of-the-art factory, we specialize in the entire production spectrum—from high-performance chips, TO/F/C Mounts, COS, and MCC bars, to robust stacks and advanced fiber-coupled solutions.
300mW 500mW 974nm Single Mode Bare Bar Laser Chip

Product Description
Bare bar is an array of individual semiconductor laser chips, with combined output power from dozens of Watts to one hundred Watts. Facet passivation process ensures the reliability required by the most stringent applications.
Laser chips are widely used in the medical field, such as ophthalmic surgery, skin plastic surgery, dental treatment, etc. Taking ophthalmic surgery as an example, high-power laser chips can be used to cut the cornea and perform myopia correction surgery, achieving higher surgical accuracy and success rate.
Specification:
| Optical | Min | Typ | Max | Unit |
| Central Wavelength | 975 | 980 | 985 | nm |
| Output Power | 300 | 500 | mW | |
| Spectrum Width | 1.6 | 2 | nm | |
| Slope Efficiency | 0.75 | 0.8 | W/A |
| Electrical | Min | Typ | Max | Unit |
| Operating Current Iop | 600 | 700 | 800 | mA |
| Threshold Current Ith | 30 | mA | ||
| Operating Voltage Vop | 1.5 | 1.7 | 1.9 | V |
| Conversion Efficiency | 35 | 40 | % |
| Thermal | Min | Typ | Max | Unit |
| Operating Temperature | 15 | 20 | 25 | ℃ |
| Coefficient | 0.3 | nm/℃ |
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