Lauri Hallman

TL;DR: In this article, a time-gated single photon avalanche diode (SPAD) was designed and fabricated in a standard high voltage 0.35 μm CMOS technology for Raman spectroscopy.

TL;DR: In this article, the construction principles and performance of a pulsed time-of-flight (TOF) laser radar based on high-speed (FWHM$ 100 ps) and high-energy (sim$ 1 nJ) optical transmitter pulses produced with a specific laser diode working in an enhanced gain-switching regime and based on single-photon detection in the receiver is discussed.

TL;DR: In this paper, an asymmetric waveguide laser diode with a thick active layer operated with enhanced gain switching is shown to be able to produce?100 ps,?25 W optical pulses in fundamental transverse mode with?15 A,?1.5 ns injection current pulses.

TL;DR: Squeezing the laser source in a small footprint removes a key technological bottleneck that has hampered the realization of a miniaturized TD diffuse optics system, able to compete with already assessed continuous-wave devices in terms of size and cost, but with wider performance potentialities, as demonstrated by research over the last two decades.

TL;DR: In this article, a compact laser pulser emitting ∼100 ps, ∼10 W pulses at >100 kHz is presented, where the high pulsing frequency is achieved using a MOSFET-based current driver, whereas the high pulse power is a merit of the used laser diode with an asymmetric waveguide structure leading to enhanced gain switching.