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High-Power VCSEL-Pumped Slab Laser With Temperature Fluctuation Adaptability
- Source :
- IEEE Photonics Technology Letters. 33:395-398
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- A face-pumped Nd:YAG slab laser with high-power output and temperature fluctuation adaptability is proposed and demonstrated for the first time. A two-dimensional (2D) vertical-cavity surface-emitting laser (VCSEL) array at 808 nm with a low wavelength shift coefficient is used as the pump source with a total pump power of 1.38 kW. The array is cooled by a double-layer vascularized macro-channel heat sink for effective heat management. A 1064 nm maximum power of 437 W from the slab laser is obtained by optimizing the output coupling, and the power variation is only ±4.9% over the temperature range from 16 °C to 34 °C. The results show that the high-power slab laser pumped by VCSEL has an excellent performance in temperature tolerance and lower requirements for coolant, which is only water cooled by the macro-channel heat sink and no need for deionized water; it also provides a solution for high power lasers used in the complicated environment. Furthermore, it is possible to scale the output power to ~kW-level by further increasing the VCSEL pump power.
- Subjects :
- Materials science
Maximum power principle
business.industry
Atmospheric temperature range
Heat sink
Laser
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Power (physics)
Vertical-cavity surface-emitting laser
Coolant
law.invention
Electricity generation
law
Optoelectronics
Electrical and Electronic Engineering
business
Subjects
Details
- ISSN :
- 19410174 and 10411135
- Volume :
- 33
- Database :
- OpenAIRE
- Journal :
- IEEE Photonics Technology Letters
- Accession number :
- edsair.doi...........8acb5a5359dc985635f03648036da58d