Record high power diode-pumped alexandrite laser demonstrated by Midaz for ESA

London, England--Midaz announced that it has successfully completed a Technology Research Programme awarded by ESA/ESTEC for the design and construction of a highly efficient diode-pumped alexandrite laser with performance capabilities exceeding existing Nd:YAG lasers.

Midaz diode pumped Alexandrite laser demonstrator
Midaz diode pumped Alexandrite laser demonstrator

London, England--Midaz announced that it has successfully completed a Technology Research Programme awarded by the European Space Research and Technology Centre (ESA/ESTEC) for the design and construction of a highly efficient diode-pumped alexandrite laser with performance capabilities exceeding existing Nd:YAG lasers. The Alexandrite laser has delivered high pulse energy (>23mJ @ 100Hz), providing prospects for satellite-based remote sensing.

Michael Damzen, CTO of Midaz, said, “What is remarkable about this laser technology demonstration is its exceptional high efficiency of greater than 31% slope efficiency (equivalent to >40% with respect to absorbed pump power) in a system still with considerable scope for further optimization toward 60% efficiency. The demonstrated efficiency is already an order of magnitude higher than lamp-pumped versions of the technology but the real significance is the opportunity diode-pumped Alexandrite offers to supersede Nd:YAG as the preferred laser source for space-based Lidar remote sensing.”

Hovemere (Tonbridge, England), a leader in the development of Lidar systems, has been subcontractor to Midaz providing advice for Lidar system aspects. Additional benefits such as wavelength tuning and portability offer great scope for other sensing applications in commercial and defense markets in the near IR (700-860 nm), UV (350-430 nm), and deep UV (233-287 nm; 175-215 nm). Industrial and scientific markets include microscopy for biomedical imaging solutions and laser-induced fluorescence spectroscopy for analysing materials at the molecular level. Diode-pumped alexandrite can be used in scientific research as a high energy amplifier for Ti:sapphire lasers.

Currently, Midaz offers DPSS products including lasers with very high pulse repetition rates and high gain, single stage, amplifier modules. The company hopes that alexandrite lasers will increase its product line.

SOURCE: Midaz

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