What is the Chopped Light Mode?
- To increase measurement level sensitivity by cutting the high frequency noise
- To detect only the light that the LS emitted, effective for free space measurement. In free space measurement, the detector can also receive ambient light, e.g. sunlight and ceiling light. If the LS emits chopped light, then the OPM measures only the chopped signal at the same frequency
- To remove power measurement error due to the drift of the electrical amplifier's offset, effective for long term measurement. Since the amplifier's offset is temperature dependent, AC detection (CHOP mode) is ideal for long term measurement
- In field testing, chopped light is commonly used for fiber identification
Related Products & Solutions
AQ6319 Optical Spectrum Analyzer
With high performance capabilities and a wavelength resolution of 10 picometer or less, the AQ6319 is designed for advanced research and development applications. With a wavelength range or 600 to 1700 nm this OSA offers an excellent combination of wavelength range and resolution.
AQ6370 Optical Spectrum Analyzer
- Yokogawa AQ6370 Optical Spectrum Analyzer
- Re-defining Optical Spectrum Measurement Excellence
Long Wavelength Optical Spectrum Analyzer AQ6375
Unique LONG wavelength range of 1200 to 2400 nm makes this the world's first and only OSA specifically designed for use in advance applications such as Carbon Monoxide (CO), Carbon Dioxide (CO2) gas detection and LIDAR.
Optical Time Domain Reflectometer AQ7275
The AQ7275 is one of the best selling OTDRs in the world. Model lineup has been expanded to a total of 9 models to choose from with a dynamic range of up to 45dB . Wavelength capability spans from 850nm (MMF) to 1650nm (SMF). An impressive 0.8m event dead zone makes this model an excellent choice for FTTH and metro, core networks.
Modular Manufacturing Test System
A modular test platform with a wide selection of modules allows optimal configuration of test solutions for optical component and network systems manufacturing.
Optical Spectrum Analyzer
- Optical Spectrum Analyzer to measure and display power distribution of an optical source
- Optical analyzer trace displays power in vertical scale and wavelength in horizontal scale
Optical Test Equipment
- Yokogawa optical test equipment solutions to measure optical components/systems
- Serves demand for high capacity fiber lines and new component technologies
Optical Time Domain Reflectometer
- Precision instrument for optical fiber installation and maintenance
- Locate events or faults along a fiber