دورية أكاديمية
Diode Laser Efficiency Increases Enable > 400-W Peak Power From 1-cm Bars and Show Clear Path to Peak Powers in Excess of 1-kW
| العنوان: | Diode Laser Efficiency Increases Enable > 400-W Peak Power From 1-cm Bars and Show Clear Path to Peak Powers in Excess of 1-kW |
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| المؤلفون: | Crump, Paul, Wang, Jun, Patterson, Steve, Wise, Damian, Basauri, Alex, DeFranza, Mark, Elim, Sandrio, Dong, Weimin, Zhang, Shiguo, Bougher, Mike |
| المساهمون: | NLIGHT PHOTONICS CORP VANCOUVER WA |
| المصدر: | DTIC |
| سنة النشر: | 2006 |
| المجموعة: | Defense Technical Information Center: DTIC Technical Reports database |
| مصطلحات موضوعية: | Lasers and Masers, Thermodynamics, DIODE LASERS, HIGH POWER, PERFORMANCE(ENGINEERING), EFFICIENCY, PEAK POWER, RELIABILITY, CRYOGENICS, THERMAL RESISTANCE, HIGH POWER BROAD AREA DIODE LASER BARS, EXTENDED WAVELENGTH RANGE LASER DIODE BARS, THERMAL PERFORMANCE, CATASTROPHIC OPTICAL MIRROR DAMAGE, OPTIMIZED MICRO-CHANNEL COOLER |
| الوصف: | Peak optical power from single 1-cm diode laser bars is advancing rapidly across all commercial wavelengths. Progress in material performance is reviewed and we show that current trends imply there is no fundamental barrier to achieving peak powers of 1-kW per 1-cm diode laser bar. For bars with such high peak powers. commercially available reliable devices would be expected to deliver ~300-W per bar. Progress to date has allowed us to demonstrate > 400-W peak output from single 1-cm diode laser bars at emission wavelengths from 800-nm to 980-nm. The available range of emission wavelengths has also been increased. with 90-W bars shown at 660-nm and 24W at 1900-nm. complementing the 100-W bar previously demonstrated at 1470-nm. Peak power is seen to correlate closely peak efficiency. Further advances in diode laser efficiency and low thermal resistance packaging technology continue to drive these powers higher. The most critical improvements have been the reduction in the diode laser operating voltage though optimization of hetero-barriers (leading to 73% efficient 100-W bars on copper micro-channel) and a reduction in packaging thermal resistance by optimizing micro-channel performance (leading to <0.2- degrees C/W thermal resistance). ; Sponsored in part by Army Research Office, Missile Defense Agency Contract No. FA8632-04-C-2456 and Air Force Reseach Laboratory Contract No. FA9451-04-D-0354. The original document contains color images. |
| نوع الوثيقة: | text |
| وصف الملف: | text/html |
| اللغة: | English |
| العلاقة: | http://www.dtic.mil/docs/citations/ADA445167Test |
| الإتاحة: | http://www.dtic.mil/docs/citations/ADA445167Test http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA445167Test |
| حقوق: | Approved for public release; distribution is unlimited. |
| رقم الانضمام: | edsbas.789EFFA5 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |