PB7200 Portable Frequency Domain
Terahertz Spectrometer
DATASHEET | AUGUST 2013
TERAHERTZ SYSTEMS
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.
Applications
Threat Signature Characterization
o Explosives
o Biologicals
o Chemicals
Microwave and THz Spectroscopy
Materials Characterization
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.
Features
Full Turnkey System: Arrives Configured
and Ready to Start Making
Measurements
Models
Model
Description
Extremely Economical: A Fraction of the
Cost of Previous THz Systems
PB7200 Portable THz Frequency Domain Spectrometer in transmission
mode with USB interface, internal lithium ion battery and rail system.
PB7200-2000-T-I
Portable: Configurable with Built-in Li Ion
Battery with Up to 12 hours of
Continuous Use
Additional detection head with counter-clockwise photomixer required for
operating the PB7200 system in reflection mode.
PB7200-D-CCW
Compact: Under 23 cm x 23 cm x 8 cm
(9″x 9″ x 3″) and less than 4 kg (9 lb.)
Performance Highlight
Parameter
Continuous Rapid Scanning From 100
GHz to over 1.8 THz
Min
Typical
Max
Units
2000
GHz
System Bandwidth
1700
1850
Fiber Optic Coupled THz Source and
Detector
Spectral Purity
0.010
0.100
0.015
0.025
-
GHz
GHz
Integrated Lock-in Detection
Frequency Resolution
-
10-12
40
-
10-11
55
10-10
W/Hz
dB Hz
Hz
Room Temperature Solid State
Detection: No Cryogenics Required
Detector Sensitivity (NEP @ 1000 GHz)
Dynamic Range @ 1000 GHz
60
Shipped in Custom Travel Case
6000
Electronic Chopping Frequency
OEM version with Quantity Pricing
Available
|
REV 2013.08
Please see Page 4 for Regional Sales Contact information
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.