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Cranbury, N.J., November 2, 2005
Princeton Lightwave Inc. (PLI),a producer of near infrared
high power diode lasers, InGaAs detectors and optical sub-systems
for defense, sensing and communications, has introduced a
line of low noise, high performance application specific large
area InGaAs Avalanche Photodiodes (APDs).
PLI’s APD’s meet the demanding low noise requirements for
laser radar applications that include eye-safe commercial
range-finding, free space optical communications, earth atmospheric
studies, and other uses in the defense and instrumentation
industries. These applications require the high signal-to-noise
ratio (SNR) and low noise equivalent power (NEP) achieved
by PLI’s very low dark current and high quantum efficiency
device design.
APDs have internal gain that allows receiver designers to
achieve a higher SNR, relative to standard PIN photodetectors,
providing a significant advantage in detecting low light signals.
InGaAs is the best material system available in the wavelength
range from 1.0 - 1.7um, and recent imperatives dictating the
need for eye safety and low atmospheric attenuation are pushing
vendors to use wavelengths longer than 1.4 um.
“Reliable process control is key to these specialty markets,
and our process yields excellent uniformity across the wafer
with little wafer to wafer variation giving us a stable supply
of devices,” said Bouchaib Nessar, PLI’s Director of Marketing
& Sales. “In addition, PLI’s InGaAs APD includes proven
design elements such as planar passivation and diffused junctions
which provide high reliability and excellent performance for
these demanding applications.”
The PLI APDs are available with active area diameters of
200, 110, and 80 um in industry standard TO-18 cans as well
as on ceramic carriers. Additionally devices as large as 1mm
diameter are available along with quadrant configurations.
About Princeton Lightwave, Inc.
Headquartered in Cranbury, New Jersey, PLI provides leading
edge semiconductor lasers and detectors, and sub-systems based
on these components for optical communications, defense, and
sensing applications. PLI's extensive product capability is
based upon unique InP and GaAs optical chip development, packaging
and integration technology, and system-level optical and electronics
design. Its multi-disciplinary team designs and delivers components
and system-level products based on high power pump modules,
single-mode and multi-mode light sources, and high performance
detector arrays and discrete devices.
Contact: pr@princetonlightwave.com
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