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- W2803374277 abstract "Many military applications require reliable laser diode operation across a wide range of elevated temperatures. Size, Weight and Power (SWaP) restrictions often limit cooling options and necessitate that high-power emission at the desired pump wavelength is maintained across wide temperature ranges. A family of QCW diode arrays has been developed for operation in these harsh environments. The arrays may be constructed with either multi-wavelength diode bars or wavelength locked with Volume Bragg Gratings (VBGs) to optimize absorption across a wide range of temperatures. The arrays have been designed to withstand the mechanical shock and vibration requirements common to military environments. This paper includes a comparison of the multi-wavelength arrays and VBG-locked arrays at high temperatures. Both sets of arrays were characterized across a broad temperature range and exposed to MIL-STD shock and vibration testing. VBG locked arrays are shown to provide >90% locking across a 15° operating range whereas multi-wavelength arrays allowed power absorption to be maintained across incredibly wide ranges (e.g. -40° to 70°C). Life test results from arrays operated at 80oC, 250A, 60Hz for over 600 million pulses are also presented. These arrays demonstrate excellent high-temperature reliability over a pulse count well in excess of the requirement of many military applications (e.g. range finders / target designators)." @default.
- W2803374277 created "2018-06-01" @default.
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- W2803374277 date "2018-05-14" @default.
- W2803374277 modified "2023-09-24" @default.
- W2803374277 title "Diode arrays for high-temperature operation in military environments (Conference Presentation)" @default.
- W2803374277 doi "https://doi.org/10.1117/12.2305070" @default.
- W2803374277 hasPublicationYear "2018" @default.
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