Compact 35μm fiber coupled diode laser module based on dense wavelength division multiplexing of NBA mini-bars | Zendy

Ulrich Witte | Zendy; Martin Traub | Zendy; Angelo Di Meo | Zendy; M. Hamann | Zendy; David Rubel | Zendy; Stefan Hengesbach | Zendy; D. H. H. Hoffmann | Zendy

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Compact 35μm fiber coupled diode laser module based on dense wavelength division multiplexing of NBA mini-bars

Author(s) -

Ulrich Witte,

Martin Traub,

Angelo Di Meo,

M. Hamann,

David Rubel,

Stefan Hengesbach,

D. H. H. Hoffmann

Publication year - 2016

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.2211157

Subject(s) - optics , laser , materials science , optoelectronics , wavelength division multiplexing , diode , wavelength , optical fiber , laser diode , tunable laser , fiber laser , semiconductor laser theory , multiplexing , physics , telecommunications , computer science

We present a compact, modular and cross talk free approach for dense wavelength division multiplexing of high power diode lasers based on ultra-steep dielectric filters. The mini bars consist of 5 narrow stripe broad area emitters with a beam parameter product in the range of 2 mm mrad and a wavelength spacing of 2.5 nm between 2 adjacent emitters. Experimental results for fiber coupling (35 μm core diameter, NA < 0.2) of internally and externally stabilized diode lasers are presented. Optical losses are analyzed and alternative optical designs to overcome the current limitations of the setup are discussed

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