TIA-5270 pages

TIA-527
Balanced
O/E Converter
Features:
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Matched InGaAs detectors
DC to 125 MHz Analog Bandwidth

Applications:

Selectable Gain Settings

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Operates from Battery or Line Power
Capability to drive 50 Ohm output loads
Low Noise - 3.6 pW/root-Hz

Coherent Heterodyne Detection
Polaization-Shift-Keying Modulation
Spectroscopy
Binary Differential Phase-Shift Keying (2-DPSK)

balanced optical to electrical converter
The TIA-527Indium Gallium Arsenidecurrents fromThe
operates by subtracting the photo
two
well-matched
detectors.
result is then amplied and presented to the output port.
Each of the optical signals causes the output to move
with a different sense. Common mode signals (e.g. laser
RIN noise) are effectively cancelled out.

Teraher tz Technologies Inc.
169 Clear Road

With selectable gain settings and a bandwidth of DC to
125 MHz this receiver is useful for coherent heterodyne
detection applications, differential polarization or phase
shifted keying modulation systems, spectroscopy, and
similar applications for which the ability to discern small
variations in signal strength in two optical paths is critical.
Use of this converter can greatly simplify signal processing requirements downstream from the experiment.
Gains of 1400 V/W, 14 000 V/W and 140 000 V/W may
be selected as well as selectable AC inter-stage coupling.
The unit is designed to be conveniently mounted on an
oscilloscope input BNC connector and may be powered
by its internal battery or with the universal wall-mount
supply that is provided with each unit.

Oriskany, New York 13424
Tel : +1 ( 315 ) 736-3642
Fax : +1 ( 315 ) 736-4078
Email : sales @ teraher tztechnologies.com
Web : www.teraher tztechnologies.com