Title :
9.1-W High-Efficient Continuous-Wave End-Pumped Vertical-External-Cavity Surface-Emitting Semiconductor Laser
Author :
Lee, Jun Ho ; Kim, Jun Youn ; Lee, Sang Moon ; Yoo, Jae Ryung ; Kim, Ki Sung ; Cho, Soo Haeng ; Lim, Seong Jin ; Kim, Gi Bum ; Hwang, Sung Min ; Kim, Taek ; Park, Yong Jo
Author_Institution :
Photonics STU in Display Lab., Samsung Adv. Inst. of Technol., Suwon
Abstract :
We report the first demonstration of an end-pumped vertical-external-cavity surface-emitting semiconductor laser (VECSEL) with more than 9.1-W continuous-wave output power at a wavelength of 1079 nm. In order to enable the VECSEL to operate in an end-pumping scheme, a liquid capillary bonding method is used to bond the VECSEL chip to the surface of an optically transparent heat spreader. Moreover, a modified distributed Bragg reflector is applied to the VECSEL chip structure to maximize the pump efficiency. These will result in an end-pumped VECSEL that is characterized by high output power with good beam quality without additional antireflection coatings of the samples. In combination with an end-pumped scheme and desirable output beam, the end-pumped VECSEL will prove useful in a variety of applications requiring compact module and efficient source with high output power
Keywords :
distributed Bragg reflector lasers; laser beams; laser cavity resonators; optical pumping; semiconductor lasers; surface emitting lasers; transparency; 1079 nm; 9.1 W; antireflection coatings; beam quality; continuous-wave laser; distributed Bragg reflector; end-pumped laser; heat spreader; liquid capillary bonding method; optical transparency; semiconductor laser; surface-emitting laser; vertical-external-cavity laser; Bonding; Cogeneration; Optical pumping; Optical surface waves; Power generation; Power lasers; Semiconductor lasers; Surface emitting lasers; Surface waves; Vertical cavity surface emitting lasers; End-pumped scheme; heat spreader; high output power; vertical-external-cavity surface-emitting semiconductor laser (VECSEL);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.882324
