Recent advances in high power optically pumped semiconductor lasers

5^th International Conference and Exhibition on Lasers, Optics & Photonics

November 28-30, 2016 Atlanta, USA

Yanbo Bai, Jeffery Wisdom, Patrick Hyland, Christian, Zuntu Xu, Yong Lin, Eli Weiss, Juan Chilla and Arnaud Lepert

Coherent Inc., USA

Scientific Tracks Abstracts: J Laser Opt Photonics

Abstract :

Optically pumped semiconductor (OPS) laser has unique advantages over its electrically pumped counterparts. The most prominent one being power scalable without sacrificing the beam quality. Lasing in the fundamental frequency at near infrared with over 100 watts has been demonstrated. Visible power in tens of watts by second harmonic generation and ultraviolet power in several watts by third harmonic generation have been commercialized. In this work, an OPS gain model is developed based on the 8-band kp method. Theoretical and experimental result indicates that this model cans predict the threshold accurately. Temperature dependent simulation allows for the modeling of self-heating and thermal rollover, therefore predicting the achievable output power. Guided by this model, improvement of existing wavelength and expansion of the wavelength coverage are demonstrated.

Biography :

Yanbo Bai has completed his PhD from Northwestern University. His research at Northwestern led to the most efficient and most powerful Quantum Cascade Lasers. His current role at Coherent is to develop more efficient optically pumped semiconductor lasers and explore new wavelength capabilities. He has published more than 40 papers in reputed journals, such as Nature Photonics, Applied Physics Letters, Journal of Applied Physics, etc. He also serves as reviewer for many journals.

Email: yanbo.bai@coherent.com