High Power Diode Lasers - Center for Biomedical Optics and New ...
High Power Diode Lasers - Center for Biomedical Optics and New ...
High Power Diode Lasers - Center for Biomedical Optics and New ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Results with broad-area lasers – FBH<br />
FBH<br />
Ferdin<strong>and</strong>-Braun-Institut<br />
für Höchstfrequenztechnik<br />
735nm GaAsP-QW / AlGaAs LOC Laser Structure:<br />
Typical Per<strong>for</strong>mance<br />
• Transparency current density j th<br />
< 200A/cm²<br />
• Threshold current <strong>for</strong> 100x1000µm² I th<br />
< 300mA<br />
• Gain coefficient Γ⋅G 0<br />
= 20cm -1<br />
• FA angle FWHM θ < 30°<br />
• Internal efficiency 0.8<br />
• Internal loss ≤ 1cm -1<br />
• T 0<br />
≈ 60K<br />
α - factor < 1.5 ⇒ good beam quality<br />
Comparable wall plug efficiency to longer wavelength structures<br />
Low temperature stability
Change language