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VECSEL: The Other Surface Emitting Semiconductor Laser

SNLO Software | VECSEL | UV Source | OPO | OFM | Crystal Research | Supersonic Flight | Plasma Science & Technology | Information

The Differences between VCSELS and VECSELS and a Standard Laser

schematic of standard laser      schematic of vcsel


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schematic of VECSEL

VECSEL Benefits
 
VECSEL Uses
Good Beam Quality   High power (Watt)
External mirror makes transverse mode control robust   NIR lasers around 1 m could replace cw diode pumped Nd lasers
Intracavity nonlinear Optics (possible)   (visible) for projection displays and to replace Ar+ lasers
Increased beam diameter over VCSEL   Pump source for communication amplifiers
Compact   Green, blue and near-UV sources
Efficient…
40% optical-optical efficiency has been demonstrated (more should be possible)
  Low power
Several wavelengths are available in low and high power configurations   digital imaging, flow cytometry, drug discovery, DNA sequencing, & wafer inspection
    compact, efficient for chem lab on a chip


Optically and Electrically Pumped VECSELS

Optically pumped VECSELs have a simple cavity. Optical pumping is convenient, efficient and can be made compact.


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schematic of optical pumping

Electrically injected VECSELs are challenging due to current injection issues.

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schematic of electric pumping

Related Links:

IR and Blue configurations

Electric injected configurations

Growing the semiconductor layers

W. J. Alford Andy Allerman Ron Allman Mike Bannis
Weng Chow Mary Crawford Peter Esherick Art Fischer
T. D. Raymond Darwin Serkland Arlee Smith Channy Wong

 

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