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PLI in the News
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May 1, 2008
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High-resolution linescan cameras use multichip designs and prisms to improve color fidelity>>
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Jan 2, 2008
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Princeton Lightwave, Inc. (PLI), a manufacturer of high-performance optical semiconductor
components and sub-systems, has been awarded a two-year $3.5M contract for the
development of focal plane arrays (FPAs) with single photon sensitivity for use in threedimensional
(3-D) imaging systems at 1.06 μm. For this program, sponsored by the Defense
Advanced Research Projects Agency (DARPA), PLI will develop FPA modules which employ
InP-based Geiger-mode avalanche photodiodes (GmAPDs) to achieve single photon sensitivity
and perform time-of-flight ranging measurements on a per-pixel basis. These modules are
intended for use as the optical engines at the core of 3-D imaging flash ladar systems such as
those demonstrated in DARPA’s Jigsaw program.
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Mar 9, 2007
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High-speed inspection systems for monitoring moving objects often struggle to obtain sufficient contrast between desirable and undesirable product attributes. To address this challenge, we have combined visible and near-infrared (near-IR) imaging in a single, dual-band camera that enables accurate sorting algorithms. Rather than trying to coregister the output of separate visible and IR cameras, this dual-band camera registers data from the same resolved spot at the same time and across a 60° field of view in both the 400- to 900-nm wavelength band and the 1100- to 1700-nm band. To ensure spatial registration, the two spectral bands must propagate with high efficiency through one lens system and be detected within an integrated package that includes a beamsplitter, an InGaAs array, and a CCD sensor.
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Jan
15,
2007 |
Princeton Lightwave Introduces the Next Generation
Single Photon Counting Bench-top Receiver for Wavelengths from 1 to 1.5 µm
Princeton Lightwave (PLI) the leader in InGaAs APDs introduces the next generation Single Photon Counting Bench-top
Receiver for wavelengths from 1 to 1.5 µm. The receiver offers the lowest dark count rate in the industry with highest detection efficiency.
The low dark count rate is obtained by using PLI’s custom InGaAs Single Photon Counting Avalanche Photodiode (SPAD).
In addition, the receiver offers an easy to use interface and remote operation. The Single Photon Counting Bench-top Receiver
has a comprehensive measurement in the range from 1 to 1.5 µm. The unit can operate from either the internal
frequency generator or an external trigger at rates up to 20 MHz. An output from the
internal frequency generator can be used to synchronize other equipment such as a laser source.
All operating parameters such as bias voltage, SPAD temperature, trigger delay, and measurement
interval are controlled from the front panel or through the RS-232 interface.
The unit displays the number of photons detected as well as the number of trigger pulses in a user defined interval.
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Jan
3,
2007 |
Princeton
Lightwave Introduces an Avalanche Photodetector Optimized
for Photon Counting at 1.06 µm
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.
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Nov
27,
2006 |
Princeton Lightwave
wins contract for development of high power laser
diodes
rinceton Lightwave, Inc. (PLI), the leading expert
in high performance lasers and detectors in the 1 um
to 2 um wavelength band, has been awarded a contract
for the development of high power pump laser diodes
based on the InGaAsP semiconductor materials system.
During this two-year program, supported by $730,000
in funding from the Army , the company will deliver
one-dimensional bars and two-dimensional stacks of
1470 nm multimode diode lasers optimized for the pumping
of eye-safe solid state laser gain media such as Er:YAG.
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Apr
18, 2006 |
Princeton
Lightwave Announces Production of Single Photon Detection
Benchtop Receiver
Princeton Lightwave, Inc. (PLI), a manufacturer of
high performance optical semiconductor components,
announced the production of their single photon detection
benchtop receiver. This unit is an essential component
of quantum cryptography systems, which enable extremely
secure communications even in the presence of eavesdropping
>> More
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