Optics Valley Technical Series: Detection of Localized Heating in High Power Laser Diode Stacks

Detecting localized heating within a high-power bar-based laser diode stack can help in screening devices for longevity. Localized heating is generally a signature of early power degradation or catastrophic failure of a bond joint, such as solder imperfections. Resolution of emitter level spectral measurements can be used to generate a thermally mapped near field image of a free space multi-emitter laser diode bar or stack. Approaches using this technique to obtain the right accuracy, calibration and adjustment to different device properties are discussed.

TANDA photonics uses its decades of expertise to design custom diode laser packaging, design and deliver automated or semi-automated production level tooling, and provide engineering services for high power diode laser assemblies. 

About Our Presenters:

Trevor Crum, co-owner of TANDA photonics, has been working in the photonics industry for over 25 years and is recognized as a specialist in high power diode laser packaging.  Over the course of his career, Trevor has designed and released high volume products into the medical, industrial, and defense industry under various employers including Spectra Physics, nLIGHT Photonics, Oclaro, and II-VI Aerospace and Defense.  Trevor holds multiple patents within the field of photonic packaging and has authored multiple technical papers at various SPIE conferences. 

Adam Abdelatif, co-owner of TANDA photonics, is an optical engineer and laser product developer who specializes in design, prototyping, and production of next generation high power laser diode products. He has experience in development of laser products that achieve next level specifications through innovative packaging designs and beam shaping techniques. Additionally, he has developed fully automated optical alignment stations used in high volume production. Adam holds a MS in Optical Sciences from the University of Arizona.

TANDA photonics uses its decades of expertise to design custom diode laser packaging, design and deliver automated or semi-automated production level tooling, and provide engineering services for high power diode laser assemblies.		Optics Valley, a committee of the Arizona Technology Council, is one of the leading clusters for optics, photonics and astronomy in the world. Optics Valley’s mission is to catalyze, convene and connect optics, photonics, astronomy and the supporting business interests throughout Arizona.