Digital Optical Attenuator
DOA24041 is a programmable four-channel single-mode digital optical attenuator with low insertion loss, high attenuation accuracy and repeatability；
In addition, the optical input and output sides are integrated with a high-precision optical power meter ,to detect the input and output optical power in real time。
It applies for 4-channel parallel testing of high-speed optical modules such as 100G/400G, and also suitable for various integrated tests in the fields of optical fiber communication, optical fiber CATV, etc. ,to meet different application requirements.
Internal optical path diagram of optical attenuation with power monitoring
Application
- Optical module testing
- ROSA / BOSA Optical Component Testing
- System and device optical loss simulation
- Laboratory studies
Features
- Low insertion loss, ≤1.5dB.
- Attenuation range： 0~40dB (other ranges can be customized)
- High attenuation accuracy, ±0.05dB
- High attenuation repeatability, ±0.05dB.
- The input and output optical power meter has a large detection range and good linearity with an input range of +20~ -30dBm, an output detection range of +20~ -50dBm and a linearity of ±0.05dB.
- High precision of constant power output.
- Supports LOS signal hysteresis test, including the power point and level size of LOS alarm and warning removal as well as the hysteresis range. The test is completed by the slave device and the typical test time is less than 1s (2.5G optical module in test range of -30dBm~ -40dBm).
- Support module DDM detection interface.
- Support RS232 and LAN or GPIB.
Technical Specifications
Item Spec. Wavelength Range 1270nm ~ 1610nm Calibration Wavelength 1270nm、1290nm、1310nm、1330nm、1490nm、1550nm，other wavelengths can be customized Insertion Loss ≤1.5dB Attenuation Range 0 ~ 40dB ( other ranges can be customized ) Attenuation Accuracy ±0.05dB Attenuation Repeatability ±0.05dB Input Optical Power Detection Range +20 ~ -30dBm Output Optical Power Detection Range +20 ~ -50dBm Input & Output Optical Power Meter Linearity ±0.05dB Decay Response Time ≤50ms
[Note] In software attenuation mode, the variation of attenuation is less than 10dB and the power is not shifted.Optical Connector FC / UPC，FC / APC can be customized LOS Signal Hysteresis, DDM Test Function Optional support
Optional Items
OPT1
Interface
Item Spec. #1 RS232、GPIB #2 RS232、LAN OPT2
LOS Signal Hysteresis, DDM Test Function
Item Spec. #A Not support #B Support OPT3
Optical Connector
Item Spec. #1 FC / UPC #2 FC / APC
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