PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
A family of laser diode arrays has been developed for QCW operation in adverse environmental conditions. The arrays
contain expansion-matched heatsinks, hard solder, and are built using a process that minimizes the packaging-induced
strain on the laser diode bars. The arrays are rated for operation at 200 Watts/bar under normal operating conditions.
This work contains test results for these arrays when run under a variety of harsh operating conditions. The conditions
were chosen to mimic those required by many military and aerospace laser programs.
Life test results are presented over a range of operating temperatures common to military specifications (-40 °C to + 70
°C) at a power level of approximately 215 Watts/bar. The arrays experienced no measurable degradation over the course
of the life test. Operation at the temperature extremes did not introduce any additional detectable failure mechanisms.
Also presented are results of characterization and reliability tests conducted at cryogenic temperatures. Diode arrays
have been subjected to repeated cycles in rapid succession between room temperature and 77 K with temperature ramp
rates up to 100 K/minute. Pre- and post- thermal cycle P-I-V data are compared. The results demonstrate the suitability
of these arrays for operation at cryogenic temperatures.
Ryan Feeler,Jeremy Junghans, andEd Stephens
"High-power QCW arrays for operation over wide temperature extremes", Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 71981F (23 February 2009); https://doi.org/10.1117/12.809581
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Ryan Feeler, Jeremy Junghans, Ed Stephens, "High-power QCW arrays for operation over wide temperature extremes," Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 71981F (23 February 2009); https://doi.org/10.1117/12.809581