High-energy sub-nanosecond optical pulse generation with a semiconductor laser diode for pulsed TOF laser ranging utilizing the single photon detection approach

Jaakko Huikari*, Eugene Avrutin, Boris Ryvkin, Juha Kostamovaara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Bulk and quantum well laser diodes with a large equivalent spot size of daa ≈ 3 µm and stripe width/cavity length of 30 µm/3 mm were realized and tested. They achieved a pulse energy and pulse length of the order of ~1 nJ and ~100 ps, respectively, with a peak pulse current of 6–8 A and a current pulse width of 1 ns. The 2D characteristics of the optical output power versus wavelength and time were also analyzed with a monochromator/streak camera set-up. The far-field characteristics were studied with respect to the time-homogeneity and energy distribution. The feasibility of a laser diode with a large equivalent spot size in single photon detection based laser ranging was demonstrated to a non-cooperative target at a distance of a few tens of meters.

Original languageEnglish
Pages (from-to)522-528
Number of pages7
JournalOptical Review
Issue number3
Early online date13 Feb 2016
Publication statusPublished - 1 Jun 2016

Bibliographical note

©The Author(s) 2016.


  • Gain switching
  • Laser radar
  • Laser ranging
  • Semiconductor laser diode
  • Single photon detection
  • Solid-state scanner

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