Gentec-EO THZ-D - Manual (Page 6)

6
Revision 1.1
THZ-D Series Instruction Manual Gentec Electro-Optics Inc. All rights reserved
2 GENERAL INFORMATION
2.1 INTRODUCTION
The Gentec-EO THZ-D Series is made up of two high performance, thermal power
probes…THZ12D a thermopile and THZ9D a Pyroelectric. Each unit is built for durability,
compactness and ease of operation.
The THZ12D-3S-VP includes an optical absorber that exhibits nearly flat spectral absorption from
10.6 µm to 600 µm.
The THZ9D-20mS-BL includes a black coating for broadband response from 10.6 µm to 3000
µm. The spectral correction factors are programmed from 10.6 µm to 440 µm.
The THZ-D Series benefits from the use of a DB-
15 male, “Smart Interface” connector, containing
an EEPROM (Erasable Electrical Programmable Read-Only Memory) programmed with the
calibration sensitivity, the spectral correction factors at different wavelengths and other data
related to the specific THZ-D Series probe. This connector allows the monitor to automatically
adjust its setting to those of the power probe being connected.
The D0 versions of the THZ9D series, can be used with the APM-D (not compatible with a T-RAD
Analog) and an oscilloscope or an OEM acquisition system. Please note that the noise equivalent
power will depend on the acquisition system.
Every THZ-D Series are designed for high resistance to electromagnetic interference.
THZ-D Series detectors are designed for user-friendly power measurement of CW and/or Quasi
CW (high rep rate) lasers using our standard monitors.
THZ-D Series detectors require no external power source
1
. They can also be used with a 1 M

input impedance oscilloscope 1 (or fast chart recorder). The calibrated V/W sensitivity is
documented in the calibration certificate of each unit. The spectral correction of this sensitivity is
also documented in the typical
“Personal wavelength correction” certificate, see section 8 .
1 An APM-D is required.