The 86122C Multiwavelength Meter is a high-precision, high-speed optical test instrument manufactured by Keysight Technologies for optical communications, fiber sensing, laser manufacturing, and more. It measures the wavelength and optical power of lasers in a specified wavelength range and supports spectrum analysis of up to 1,000 laser lines, covering all fiber-to-the-home, urban and long-distance transmission systems. In this article, we'll look at the key features, applications, and benefits of the 86122C multiwavelength meter, and how to use it for optical testing.
Model: 86122C
Name: Multi-wavelength meter.
Brand: KeysightKeysight.
Classification: General Electronic Test > Optical Test > Multi-wavelength Meter.
Product attributes: Host.
Function. 
Enhanced, stabilized helium-neon (HENE) reference laser source with double life cycle.
Absolute wavelength accuracy: 02 ppm
Differential wavelength accuracy: 015 ppm
Wavelength scan time < 05 seconds.
New feature: Wavelength scan time < 03 seconds.
Optical Communications: The 86122C Multiwavelength Meter can be used to test wavelength division multiplexing (WDM) signals in fiber optic networks, including dense wavelength division multiplexing (DWDM) and coarse wavelength division multiplexing (CWDM) signals. It quickly and accurately measures the wavelength, optical power, channel spacing, and number of channels for each channel, as well as the optical signal-to-noise ratio (OSNR) of the entire signal. It can also measure the wavelength and power drift of the signal to evaluate the stability and quality of the signal. The high accuracy and speed of the 86122C multiwavelength meter can help optical communications engineers optimize network performance and reduce costs.
Fiber Optic Sensing: The 86122C multiwavelength meter can be used to test fiber-based sensors such as fiber Bragg grating (FBG) sensors, fiber optic Raman scattering (FORS) sensors, fiber optics coherence tomography (OCT) sensors, etc. It can measure the reflection or transmission spectrum of the sensor, as well as the wavelength drift of the sensor to obtain the physical parameters of the sensor, such as temperature, pressure, stress, vibration, etc. The high sensitivity and resolution of the 86122C multiwavelength meter can help fiber optic sensing engineers improve the accuracy and reliability of their sensors.
Laser Manufacturing: The 86122C multi-wavelength meter can be used to test various types of lasers, such as semiconductor lasers, solid-state lasers, fiber lasers, femtosecond lasers, etc. It can measure the output spectrum of the laser, as well as the wavelength stability, linewidth, modulation characteristics of the laser, etc. The 86122C multiwavelength meter's high dynamic range and high measurement speed can help laser manufacturing engineers improve the performance and quality of their lasers.
The new Keysight 86122C multiwavelength meter has 02 ppm absolute wavelength accuracy and 015 ppm differential wavelength accuracy, ideal for optical communications testing. It has a wavelength range of 1270 to 1650 nm and covers all fiber-to-the-home, urban and long-distance transmission systems. This multi-wavelength meter can measure the spectrum of up to 1,000 laser lines at a time, enough to support a fully configured dense wavelength division multiplexing (DWDM) system.
The new 86122c is an updated version of the proven 86122a and 86122b. This product is ideal for efficiently developing, manufacturing, and validating tunable emitter laser sources and optical communication subsystems for current and future high-speed applications. Due to its outstanding reliability and durability, it is often found on production floors and engineers' benches, but it can also be used on ships. Based on the vast amount of statistics provided by most wavelength meters currently in use in the industry, we are constantly improving our instrument design to reduce the cost of ownership and extend the lifetime, especially in 24x7 testing.
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