PB7200 Datasheet, PDF (1/4 Pages) Emcore Corporation – Portable Frequency Domain Terahertz Spectrometer

PB7200 Portable Frequency Domain
Terahertz Spectrometer
DATASHEET | AUGUST 2013
TERAHERTZ SYSTEMS
Applications
Threat Signature Characterization
o Explosives
o Biologicals
o Chemicals
Microwave and THz Spectroscopy
Materials Characterization
Features
Full Turnkey System: Arrives Configured
and Ready to Start Making
Measurements
Extremely Economical: A Fraction of the
Cost of Previous THz Systems
Portable: Configurable with Built-in Li Ion
Battery with Up to 12 hours of
Continuous Use
Compact: Under 23 cm x 23 cm x 8 cm
(9″x 9″ x 3″) and less than 4 kg (9 lb.)
Continuous Rapid Scanning From 100
GHz to over 1.8 THz
Fiber Optic Coupled THz Source and
Detector
Integrated Lock-in Detection
Room Temperature Solid State
Detection: No Cryogenics Required
Shipped in Custom Travel Case
OEM version with Quantity Pricing
Available
Compact, Portable Terahertz Spectroscopy System
EMCORE’s versatile PB7200 Spectroscopy Platform is designed for scanning complex
compounds to precise specifications with greater accuracy and control. The PB7200 is
ideal for THz researchers and application developers who need to study the properties
of materials at THz frequencies with high-resolution, but who don’t want to design and
build their own high-resolution THz spectroscopy system. The PB7200 can sweep up
to 2.0 THz in a single rapid scan with frequency resolution better than 0.25 GHz.
The PB7200 employs precisely tuned, fiber-coupled butterfly packaged semiconductor
DFB lasers, advanced photo-mixing source and detector, and sophisticated digital
control hardware and software to provide a fully turnkey laboratory THz spectrometer.
The room temperature solid-state homodyne detection technique eliminates the need
for cryogenics. The highly efficient CW nature of the photo-mixing source puts all the
THz power at the frequency of interest, yielding excellent signal-to-noise ratios across
the scan range of up to 70 dB Hz.
Unlike time-domain systems requiring expensive mode-locked lasers, the tunable
semiconductor laser diodes in the PB7200 can support linear scans or can ‘frequency
hop’ between frequencies of interest to scan specific regions of the spectrum with
varying degrees of resolution. The latest ‘snap-in-place’ fiber-optically coupled source
and detector heads are mounted on a rail system and configured for transmission
measurements. They may also be detached from the processor unit and used with
extended fiber optic cables for maximum measurement flexibility in a wide range of
applications, in either transmission or reflection modes. The new terahertz heads
make the PB7200 not only lighter and more compact, but easier to assemble and tear
down.
The PB7200’s latest software package includes smoothing functions and background
subtraction features. The software automatically downloads the calibration files from the
PB7200 which makes setting up multiple computers easy.
Models
Model
PB7200-2000-T-I
PB7200-D-CCW
Description
PB7200 Portable THz Frequency Domain Spectrometer in transmission
mode with USB interface, internal lithium ion battery and rail system.
Additional detection head with counter-clockwise photomixer required for
operating the PB7200 system in reflection mode.
Performance Highlight
Parameter
System Bandwidth
Spectral Purity
Frequency Resolution
Detector Sensitivity (NEP @ 1000 GHz)
Dynamic Range @ 1000 GHz
Electronic Chopping Frequency
Min
1700
0.010
0.100
10^-12
40
-
Typical
1850
0.015
-
10^-11
55
6000
Max
2000
0.025
-
10^-10
60
Units
GHz
GHz
GHz
W/Hz
dB Hz
Hz
| REV 2013.08
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Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.