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 Features
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Bandwidth to 750 MHz |
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900 to 1700 nm wavelengths |
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Gain switch x1 and x10 |
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BNC connects to oscilloscope |
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Battery operation |
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AC or DC coupling |
The TIA-950 optical receiver is the optimum instrument
for the laboratory or for field use. This optical receiver can be used with a
wide range of oscilloscopes and digitisers to provide the utility of a
convenient, easy to use fibre optic probe. This compact unit mounts directly on
the BNC input of an oscilloscope. Energising the unit, the optical signal
presented to it is faithfully reproduced on the CRT of the oscilloscope or
digitiser.
Applications for this instrument include: checking the
output of fibre optic communication links, fibre optic computer networks, the
operation of laser sources and the signal from an optical transmitter. Adaptors
are available for fibre optic connector compatibility.
Gains are switch selected and provide peak responsivity
values of approx. 2000 to 20,000 volts per watt at the peak of the detector
response curve. AC coupling between stages may be introduced so that weak
signals in the presence of a strong DC signal may be examined.
Electrical bandwidth of the TIA-950 exceeds 750 MHz in
the low gain position and 250 MHz in the high gain position. The output stage
of the TIA-950 is fully capable of driving a 50 ohm coaxial cable terminated in
its characteristic impedance. The InGaAs detector covers the 900 to 1700 nm
spectral region. An FC fibre optic connector comes as standard with the
TIA-950.
Powered by a 9 V battery, the TIA-950 provides true
electrical isolation from power lines and ground loops.
Specifications
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Detector type: InGaAs (900-1700 nm) |
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Transimpedance ranges: 2K |
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Post amplifier gain: 1.0, 10.0 selectable |
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Max. linear input power: >0.8 mW |
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Max. input power without damage: 10 mW |
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Bandwidth (-3dB): DC to 750 MHZ at gain of 1.0, DC to 250
MHZ at gain of 10.0 |
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Output impedance: 50 ohms |
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Output connector: BNC |
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Fibre optic input connector: FC |
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Input numerical aperture: 0.29 |
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Interstage coupling: AC or DC (100 Hz frequency cut
off) |
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Output offset voltage: +/- 0.75 V at max. gain |
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Max. output voltage: 2 V pk-pk, no load, 1 V pk-pk with 50
ohm load |
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Noise level: 3 pW/ Hz1/2 |
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Power required: 9 V battery powers the unit for approx. 30
hrs (no load) |
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Dimensions: 30.5 (W) x 63 (L) x 38 (H) mm |
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Weight: 150 gm |
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Limited warranty: 2 years from date of receipt |
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