Influence Of The Spatial Pump Distribution On The Performance Of High Power Vertical-External-Cavity Surface-Emitting Lasers

A Chernikov,John E Herrmann,Maik Scheller, Manfred Koch,B Kunert,W Stolz,Siddhartha Chatterjee, S W Koch,T L Wang,Yushi Kaneda,J M Yarborough,J Hader,J V Moloney

APPLIED PHYSICS LETTERS（2010）

Cited 26|Views5

No score

Abstract

The performance of a 1040 nm vertical-external-cavity surface-emitting laser is studied as function of the size and shape of the pumped area. The input-output characteristics of the device are monitored while simultaneously tracking the temperature in the active region. It is shown that the pump spot shape plays a crucial role in optimizing the laser output. Improvements up to a factor of 5 are found for a super-Gaussian in comparison to the standard Gaussian shape. For the large pump-spot sizes needed for high output powers, it turns out that the power-scalability breaks down due to the suppressed lateral heat flow. (C) 2010 American Institute of Physics. [doi:10.1063/1.3515911]

Translated text

Key words

optical pumping,heat transfer,heat flow,input output

AI Read Science

Must-Reading Tree

Example

Generate MRT to find the research sequence of this paper

Chat Paper

Summary is being generated by the instructions you defined