PB7220-2000-T Datasheet, PDF (1/6 Pages) Emcore Corporation – Portable Frequency Domain Terahertz Spectrometer

PB7220-2000-T Portable Frequency Domain
Terahertz Spectrometer
DATASHEET | MAY 2014
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 7 kg with
case
Continuous Rapid Scanning From 100
GHz to over 1.8 THz
Fiber Optic Coupled THz Source and
Detector Heads
Integrated Lock-in Detection
Room Temperature Solid State
Detection: No Cryogenics Required
Shipped in Custom Travel Case
OEM Version with Quantity Pricing
Available
TERAHERTZ SYSTEMS
Compact, Portable Terahertz Spectroscopy System
EMCORE’s versatile PB7220-2000-T Spectroscopy Platform is designed for scanning
complex compounds to precise specifications with greater accuracy and control. The
PB7220 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 PB7220 can
sweep from 100 GHz to over 1.8 THz in a single rapid scan with frequency resolution
better than 0.25 GHz.
The PB7220 employs precisely tuned, fiber coupled, butterfly packaged semiconductor
DFB lasers, an advanced photo-mixing source and detector, and sophisticated digital
control hardware and software to provide a fully turnkey 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 PB7220 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 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 to provide
maximum measurement flexibility in a wide range of applications.
Performance Highlights
Parameter
System Bandwidth
Spectral Purity
Frequency Resolution
Dynamic Range @ 100 GHz
Dynamic Range @ 1000 GHz
Dynamic Range @ 2000 GHz
THz Beam Diameter @ 500 GHz
THz path length
Tuning speed
Electronic Chopping Frequency
Min
1700
0.010
100
65
40
30
10
Typical
1850
0.015
1000
70
55
40
6
25
10
6000
Max
2100
0.025
5000
75
60
45
-
Units
GHz
GHz
MHz
dB Hz
dB Hz
dB Hz
mm
(FWHM)
cm
GHz/sec
Hz
| REV 2014.05
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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.