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Just to bend your mind around the pace of optical technology...~BC<br>
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Helvetica, sans-serif"><b>March 25, 2015 Test &
Measurement</b></font></a></td>
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<b>Highlights of this issue:</b><br>
• <a moz-do-not-send="true" href="#1">Laser frequency
comb in SM fiber can aid search for exoplanets </a><br>
• <a moz-do-not-send="true" href="#3">Cornell CMOS
mid-IR optical frequency comb fits on 1 mm chip</a><br>
• <a moz-do-not-send="true" href="#6">Cryogenic
optical-lattice clocks will enable
mapping Earth's gravity</a><br>
• <a moz-do-not-send="true" href="#7">He-Ne lasers meet
metrology challenges at PTB</a> <br>
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<td colspan="2" bgcolor="#005BAA"><font
color="#ffffff" face="Arial, Helvetica,
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Measurement News and Featured Articles</b></font></td>
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target="_blank"> <img
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src="http://media.pennnet.com/images/100*59/comb.png"
alt="A laser frequency comb
aids in exoplanet search"
title="A laser frequency comb
aids in exoplanet search"
border="0" height="59"
width="100"> </a> </td>
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target="_blank"><b>Laser frequency comb in
SM fiber can aid search for exoplanets
(VIDEO)</b></a></strong></font><br>
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A solar telescope can be combined with a laser
frequency comb (LFC) to allow spectral analysis
of distant stars with unprecedented accuracy,
which can potentially aid the hunt for
exoplanets.<a moz-do-not-send="true" name="2"></a>
<a moz-do-not-send="true"
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target="_blank"><b>WEBCAST April 15: Laser
Measurements Critical to Successful AM </b></a></strong></font><br>
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Specifically, when a laser is used during
additive manufacturing (AM) processes, knowing
how the laser interacts with the material is
crucial to the success of the parts being built
up.<a moz-do-not-send="true" name="3"></a> <a
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alt="Cornell CMOS-compatible
mid-IR frequency comb fits on
a chip" title="Cornell
CMOS-compatible mid-IR
frequency comb fits on a chip"
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width="100"> </a> </td>
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target="_blank"><b>Cornell CMOS mid-IR
optical frequency comb fits on 1 mm chip</b></a></strong></font><br>
<font face="Arial, Helvetica, sans-serif" size="2">
The CMOS-compatible miniature frequency comb
could lead to highly sensitive handheld gas
sensors for anything from atmospheric research
to disaster-recovery missions.<a
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target="_blank"><b>Distributed fiber sensing
systems could unlock geothermal energy</b></a></strong></font><br>
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In the last five years, advances in fiber-optic
technology have enabled cables to gather around
a terabyte of detailed seismic and temperature
data per day in downhole environments.<a
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target="_blank"> <img
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src="http://media.pennnet.com/images/100*82/cross+correlator.png"
alt="The delay scanning cross
correlator has a new rival"
title="The delay scanning
cross correlator has a new
rival" border="0" height="82"
width="100"> </a> </td>
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target="_blank"><b>Single-shot
cross-correlator has > 10exp10 dynamic
range</b></a></strong></font><br>
<font face="Arial, Helvetica, sans-serif" size="2">
Promising for constructing and optimizing
ultra-high peak-power laser systems, the new
device is comparable to a delay-scanning
cross-correlator (DSCC).<a
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target="_blank"><b>Cryogenic optical-lattice
clocks will enable mapping Earth's gravity</b></a></strong></font><br>
<font face="Arial, Helvetica, sans-serif" size="2">
Applications of the clock include measuring
different time delays produced during varied
driving routes for a motor vehicle carrying the
clock, allowing gravitational potential to be
mapped.<a moz-do-not-send="true" name="7"></a> <a
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The He-Ne laser is now the preferred laser for
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