| Cranbury, N.J., January 3, 2007 Princeton Lightwave,
Inc. (PLI), introduces the first Indium Phosphide single
photon counting APD (SPAD) designed for optimum performance
at 1.06 µm.
The PLI 1.06 µm SPAD bridges the performance gap between
Silicon and conventional Indium Phosphide devices. Silicon,
which reaches its maximum responsivity below 1µm suffers
from very low detection efficiency at 1.06 µm. Alternatively,
conventional Indium Phosphide SPADs, with a responsivity
peak at 1.55 µm, have excellent detection efficiency
but the excess noise generated by the unused spectrum increases
the dark count rate at 1.06 µm.
The device designed by Princeton Lightwave combines an adjustment
in the spectral peak through material engineering with single
photon capabilities stemming from prior designs for longer
wavelengths. The result is a SPAD with peak responsivity
at 1.06µm which enables very low dark count rates while
providing an order of magnitude larger detection efficiency
compared to Silicon.
The device is available in sizes of 80 and 200 microns,
packaged with a thermoelectric cooler inside a windowed TO-8
can. The low dark count rate will allow operations in either
gated or non-gated mode. A detection efficiency of 50% is
achievable.
Applications include all low-light YAG laser detection,
time resolved spectroscopy in biomedical, LIDAR and LADAR
systems designed for remote sensing as well as for free-space
optical transmission.
About Princeton Lightwave:
Headquartered in Cranbury, NJ, Princeton Lightwave provides
leading edge semiconductor lasers and detectors for optical
communications, instrumentation and defense applications.
PLI's rich product capability is based upon unique GaAS and
InP optical chip design, packaging and integration technology.
For more information visit www.princetonlightwave.com.
Contact:
Sales@Princetonlightwave.com
PR@princetonlightwave.com |
