Optical in-well pumping of a semiconductor disk laser with high optical efficiency

Optical in-well pumping is shown to lead to highly efficient operation of semiconductor disk-lasers using resonant absorption or using external optics. Pump radiation absorption of 70% at 940 nm is demonstrated for a laser emitting around 980 nm. Laser output power was 1.9 W with slope efficiencies up to 35% based on the incident power.

[1]  Allister I. Ferguson,et al.  Optical in-well pumping of a vertical-external-cavity surface-emitting laser , 2004 .

[2]  Adolf Giesen.  Results and scaling laws of thin-disk lasers , 2004, SPIE LASE.

[3]  Adolf Giesen,et al.  Scalable concept for diode-pumped high-power solid-state lasers , 1994 .

[4]  A. Mooradian.  High brightness cavity-controlled surface emitting GaInAs lasers operating at 980 nm , 2001, OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171).

[5]  R. Michalzik,et al.  57% wallplug efficiency oxide-confined 850 nm wavelength GaAs VCSELs , 1997 .

[6]  Adolf Giesen,et al.  Semiconductor Thin-Disk Laser – Comparison of Spacer and Quantum-Well Pumping , 2005 .

[7]  P. Enders,et al.  Improved theory of the refractive-index change in quantum-well lasers , 1999 .

[8]  J. Geske,et al.  Vertical-cavity surface-emitting laser active regions for enhanced performance with optical pumping , 2004, IEEE Journal of Quantum Electronics.

[9]  G. Erbert,et al.  Mounting of high power laser diodes on boron nitride heat sinks using an optimized Au/Sn metallurgy , 2001 .

[10]  E. Purcell.  Spontaneous Emission Probabilities at Radio Frequencies , 1995 .

[11]  A. Mooradian,et al.  Design and characteristics of high-power (>0.5-W CW) diode-pumped vertical-external-cavity surface-emitting semiconductor lasers with circular TEM/sub 00/ beams , 1999 .

[12]  U. Zeimer,et al.  Interdiffusion in highly strained InGaAs-QWs for high power laser diode applications , 2004 .

[13]  R. Michalzik,et al.  Operating Principles of VCSELs , 2003 .

[14]  Henryk Temkin,et al.  Vertical-cavity surface-emitting lasers : design, fabrication, characterization, and applications , 2001 .

[15]  K. Köhler,et al.  Auger recombination in intrinsic GaAs , 1993 .