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Proceedings Article

Lateral mode selection in a broad-area laser diode by self-injection locking with a mirror stripe

[+] Author Affiliations
Birgitte Thestrup, Mingjun Chi, Paul Michael Petersen

Riso National Lab. (Denmark)

Proc. SPIE 5336, High-Power Diode Laser Technology and Applications II, 38 (June 1, 2004); doi:10.1117/12.529005
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From Conference Volume 5336

  • High-Power Diode Laser Technology and Applications II
  • Mark S. Zediker
  • San Jose, Ca | January 25, 2004

abstract

In this paper, we demonstrate lateral mode selection and amplification in a broad area laser (BAL) diode in an external cavity. The cavity is based on self-injection locking of an 807 nm, 3W broad area diode using a mirror stripe as the feedback unit. At the optimum mirror stripe position, the lateral far-field intensity profile is narrowed 8.5 times compared with the profile from the freely running laser when running at a drive current of twice the threshold current. We have determined the lateral angular range, in which, different array modes can be exited and, only, within a narrow range around 2.3° from the beam center a high, spatial beam coherence can be obtained.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Birgitte Thestrup ; Mingjun Chi and Paul Michael Petersen
"Lateral mode selection in a broad-area laser diode by self-injection locking with a mirror stripe", Proc. SPIE 5336, High-Power Diode Laser Technology and Applications II, 38 (June 1, 2004); doi:10.1117/12.529005; http://dx.doi.org/10.1117/12.529005


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