scholarly journals Improving reliability of high power quasi-CW laser diode arrays for pumping solid state lasers

2005 ◽  
Author(s):  
Farzin Amzajerdian ◽  
Byron L. Meadows ◽  
Nathaniel R. Baker ◽  
Bruce W. Barnes ◽  
Renee S. Baggott ◽  
...  
Keyword(s):  
Solid State ◽  
Laser Diode ◽  
High Power ◽  
Solid State Lasers ◽  
Cw Laser ◽  
Laser Diode Arrays

High-power 2D laser diode arrays for pumping solid state lasers

1998 ◽  
Author(s):  
Hirofumi Kan ◽  
Toyoki Kanzaki ◽  
Hirofumi Miyajima ◽  
Masahiro Miyamoto ◽  
Yukihiro Itoh ◽  
...  
Keyword(s):  
Solid State ◽  
Laser Diode ◽  
High Power ◽  
Solid State Lasers ◽  
Laser Diode Arrays

scholarly journals Laser-Diode Pumped High Power Solid-State Lasers. High Power Laser Diode Arrays.

1996 ◽  
Vol 24 (3) ◽  
pp. 334-342
Author(s):  
Hirofumi KAN ◽  
Takeshi KANZAKI ◽  
Hirofumi MIYAJIMA ◽  
Yukihiro ITO ◽  
Teruo HIRUMA
Keyword(s):  
Solid State ◽  
Laser Diode ◽  
High Power ◽  
Solid State Lasers ◽  
High Power Laser ◽  
Power Laser ◽  
Diode Pumped ◽  
Laser Diode Arrays ◽  
High Power Laser Diode

scholarly journals Improving lifetime of quasi-CW laser diode arrays for pumping 2-micron solid state lasers

2007 ◽  
Author(s):  
Farzin Amzajerdian ◽  
Byron L. Meadows ◽  
Nathaniel R. Baker ◽  
Bruce W. Barnes ◽  
Upendra N. Singh ◽  
...  
Keyword(s):  
Solid State ◽  
Laser Diode ◽  
Solid State Lasers ◽  
Cw Laser ◽  
Laser Diode Arrays

Reliability of Long Pulsewidth High Power Laser Diode Arrays

2005 ◽  
Vol 883 ◽  
Author(s):  
Byron L. Meadows ◽  
Farzin Amzajerdian ◽  
Bruce W. Barnes ◽  
Nathaniel R. Baker ◽  
Rene P. Baggott ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Solid State ◽  
Thermal Cycling ◽  
Laser Diode ◽  
High Power ◽  
Solid State Lasers ◽  
High Power Laser ◽  
Power Laser ◽  
Central Wavelength ◽  
Laser Diode Arrays

AbstractSpace-borne laser remote sensing systems typically rely on conductively cooled, diodepumped solid-state lasers as their transmitter source. Since space-borne instruments incur high developmental and launch costs and are inaccessible for maintenance, their reliability is of great importance. Therefore, it is crucial to address the reliability of high power laser pump arrays, which essentially dictate the reliability and lifetime of the laser systems. The most common solid-state lasers used for remote sensing applications are Neodymium-based, 1-micron lasers and Thulium/Holmium based 2-micron lasers. 2-micron lasers require a pump wavelength of around 10 to 20 nm shorter compared with 1-micron lasers, and require pump pulse durations 5 to 10 times longer. This work focuses on the long pulsewidth laser diode arrays (LDAs) operating at a central wavelength of 792 nm used for optically pumping 2-micron solid-state laser materials. Such LDAs are required to operate at relatively high pulse energies with pulse durations on the order of one millisecond. However, such relatively long pulse durations cause the laser diode active region to experience high peak temperatures and drastic thermal cycling. This extreme localized heating and thermal cycling of the active regions are considered the primary contributing factors for both gradual and catastrophic degradation of LDAs, thus limiting their reliability and lifetime. One method for mitigating this damage is to incorporate materials that can improve thermo-mechanical properties by increasing the rate of heat dissipation and reducing internal stresses due to differences in thermal expansion and thus increasing lifetime. This paper explains the need for long pulsewidth operation, how this affects reliability and lifetime and presents some results from characterization and life testing of these devices.

High Power Laser Diode Arrays for Pumping Solid State Laser and Pumping Characteristics

1996 ◽  
Vol 24 (Supplement) ◽  
pp. 85-88
Author(s):  
H. Kan ◽  
T. Kanzaki ◽  
H. Miyajima ◽  
Y. Ito ◽  
K. Matsui ◽  
...  
Keyword(s):  
Solid State ◽  
Laser Diode ◽  
High Power ◽  
Solid State Laser ◽  
High Power Laser ◽  
Power Laser ◽  
State Laser ◽  
Laser Diode Arrays ◽  
High Power Laser Diode

Optimization of rod diameter in solid state lasers side-pumped with multiple laser diode arrays

1992 ◽  
Author(s):  
Newton L. Sims, Jr. ◽  
Christyl C. Johnson ◽  
Norman P. Barnes ◽  
George E. Lockard ◽  
Patricia L. Cross
Keyword(s):  
Solid State ◽  
Laser Diode ◽  
Solid State Lasers ◽  
Laser Diode Arrays

Laser diode arrays for high-average-power pumping of solid state lasers

1993 ◽  
Author(s):  
David C. Mundinger ◽  
John G. Endriz ◽  
James M. Haden ◽  
Gary L. Harnagel ◽  
David Dawson-Elli
Keyword(s):  
Solid State ◽  
Laser Diode ◽  
Average Power ◽  
Solid State Lasers ◽  
High Average Power ◽  
Laser Diode Arrays

Thermal characteristics of high-power long-pulsewidth quasi-CW laser diode arrays

2004 ◽  
Author(s):  
Byron L. Meadows ◽  
Farzin Amzajerdian ◽  
Nathaniel R. Baker ◽  
Vikas Sudesh ◽  
Upendra N. Singh ◽  
...  
Keyword(s):  
Laser Diode ◽  
High Power ◽  
Thermal Characteristics ◽  
Cw Laser ◽  
Laser Diode Arrays
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