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8 Channel Optically Controlled Optical Attenuator Calibration Wavelength Optional
The 8-channel optically controlled optical attenuator is a key device used in optical testing and communication systems, which can precisely control and adjust the intensity of the optical signal.
Basic concept
The 8-channel optical attenuator, as the name suggests, refers to
an optical attenuator with 8 independent channels, each channel can
independently control the attenuation amount of the optical signal.
This device is usually used in scenarios where multiple optical
signals need to be processed in parallel, such as multi-channel
error measurement of optical transceiver modules and sensitivity
measurement of optical transceiver modules.
Working principle
The working principle of 8-channel optical attenuator mainly
includes light absorption, light scattering, light reflection,
dislocation technology and displacement attenuation. These
mechanisms reduce the intensity of the light signal through
different physical processes, thus achieving attenuation effects.
Specifically, the optical material inside the optical attenuator
absorbs, scatters, or reflects part of the incident light, or
increases the coupling loss by changing the way the fiber is
interfacing (such as dislocation or displacement), so as to achieve
the purpose of attenuating the optical signal.
Specification
Model # | U8734 | U8738 |
Attenuator Range | 0~40 dB | |
Calibration Wavelength | 1270 / 1286 / 1290 / 1295 / 1300 / 1305 / 1310 / 1330 / 1510 / 1530 / 1550 / 1570 nm | |
Insertion Loss | ≤1.5 dB | |
Fiber Type | 9/125 um single mode | |
Connector Type | FC/UPC Connector | |
Attenuation Accuracy | ≤ ± 0.1 dB (0 ~ 25 dB) ≤ ± 0.02 dB (0 ~ 25 dB With Power control) | |
Repeatability | ≤ ±0.02 dB | |
Averaging time of monitor PM | 1~1000ms | |
Settling Time | 100ms | |
Attenuation Transition Speed | 0.1 ~ 50 dB/s | |
Return Loss | > 45 dB | |
Maximum safe input power | +20dBm | |
Communication Interface | RS232, USB,RJ45 Control by PC | |
Recalibration Period | 2 years | |
Operation Temperature | 0~ +40℃ | |
Storage Temperature | -30~+80℃ | |
Power | 100~240 V | |
Dimensions | 235mm W, 55 mm H, 320 mm D | |
Weight | 3.0 kg |
8-channel optically controlled optical attenuators have a wide range of applications in a number of areas, including but not limited to:
Optical communication system: used for attenuation control of
optical fiber links to ensure the transmission quality and
performance of optical signals in the optical path.
Optical measurement: In the optical microscope, spectrometer
calibration and other occasions, used to control the light
intensity reflection or transmission of the sample to the light.
Photonics research: In photonics experiments, it is used to
simulate light signals of different intensities and study the
interaction between light and matter.
Use and maintenance
When using an 8-channel optically controlled optical attenuator,
the following points need to be noted:
Correct connection: Ensure that the connection between the optical
attenuator and other optical components (such as optical fibers,
couplers, etc.) is stable and reliable to reduce optical loss.
Set the baseline: Set the baseline before use to determine the
initial degree of light attenuation.
Real-time monitoring: Using measuring equipment such as optical
power meters to monitor changes in optical signal strength in real
time and adjust accordingly.
Periodic calibration: Periodic calibration is performed according
to the calibration cycle to ensure the accuracy of the attenuation
accuracy.