Title :
Large laser diode arrays for high-duty-cycle operation
Author :
Harnagel, G.L. ; Vakili, M. ; Worland, D.P. ; Scifres, D.R.
Author_Institution :
Spectra Diode Labs., San Jose, CA, USA
Abstract :
Large arrays stacked 3 cm high, consisting of 38 laser bars 1 cm wide, have been operated at 100 W of average power and 4.5% duty cycle (2400 W peak power) with excellent spectral characteristics. Operation consisted of a burst of 10 150 mu s pulses on a 1 ms period, with burst repetition rates of up to 30 Hz. Conventional operation with 200 and 1000 mu s pulse widths is also reported.
Keywords :
optical modulation; semiconductor laser arrays; 100 W; 2400 W; average power; burst repetition rates; gated spectra; high-duty-cycle operation; junction temperature rise; laser bar stacking density; laser diode arrays; linear subassemblies; peak power; pulse widths; pulsed operation; spectral characteristics;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921082
