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Diode-pumped Alexandrite laser for next generation satellite-based earth observation lidar

CEAS space journal, 2019-12, Vol.11 (4), p.413-422 [Peer Reviewed Journal]

The Author(s) 2019 ;ISSN: 1868-2502 ;EISSN: 1868-2510 ;DOI: 10.1007/s12567-019-00253-z

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  • Title:
    Diode-pumped Alexandrite laser for next generation satellite-based earth observation lidar
  • Author: Strotkamp, Michael ; Munk, Alexander ; Jungbluth, Bernd ; Hoffmann, Hans-Dieter ; Höffner, Josef
  • Subjects: Aerospace Technology and Astronautics ; Engineering ; Original Paper
  • Is Part Of: CEAS space journal, 2019-12, Vol.11 (4), p.413-422
  • Description: In this work, the design of a diode-pumped Alexandrite ring laser in Q-switched single-longitudinal-mode (SLM) operation for a spaceborne lidar mission is presented. The laser is pumped by a self-developed fiber-coupled laser diode pump device and yields a pulse energy of 1.7 mJ at a repetition rate of 500 Hz with an excellent beam quality of M 2  < 1.1. By seeding the resonator with a narrow band diode laser, SLM operation with a linewidth of approximately 10 MHz is achieved. The electro-optical efficiency of 2% is the highest achieved for all Alexandrite lasers in SLM operation and reasonable for space operation. The performance analysis as well as benchmarking with the space-qualified mounting technology points out the TRL and the remaining effort for the development of the technology. An estimation of the requirements for a spaceborne resonance lidar mission underlines the suitability of such a lidar system with a diode-pumped Alexandrite laser as the beam source.
  • Publisher: Vienna: Springer Vienna
  • Language: English
  • Identifier: ISSN: 1868-2502
    EISSN: 1868-2510
    DOI: 10.1007/s12567-019-00253-z
  • Source: Springer Nature OA/Free Journals
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