Data Sheets
Introduction
The 8612xx family of multi-wavelength meters is known for reliability and durability on the manufacturing floor, on engineer‘s benches, and even on ships. Statistical data from a large share of the industry’s installed wavelength meters enables Keysight to continuously fine-tune its instruments for lower cost of ownership and longer usage. Current updates include an extended recommended recalibration period of two years and a doubled lifetime of the built-in reference laser.
Fast Update Option for the 86122C Multi-Wavelength Meter
Our flagship model, the Keysight 86122C, is now available with a faster update rate. The new option 86122C-110 accelerates the update rate from 2 per second to 3 per second. The measurement cycle time is reduced from 0.5 seconds to 0.3 seconds. For compatibility, the previous update rate is still available under option 86122C-100.
86120D Multi-Wavelength Meter
For the measurement of light sources and signals in the wavelength range from 700 nm to 1700 nm, the new 86120D model offers a compelling set of features with ±1.5 ppm accuracy and a measurement cycle time of 0.6 seconds. Like for the 86122C, all wavelength accuracy specifications apply to single-scan measurements - there is no averaging required. This makes them ideal for fast, automated wavelength adjustment procedures.
The 86120D has been qualified for “General Purpose” environmental operating conditions from 0 °C to +55 °C, including shock and vibration levels for use cases that require robust test equipment.
Keysight multi-wavelength meters are Michelson interferometer- based instruments that measure wavelength and optical power of laser light over a specified wavelength range. Simultaneous measurements of multiple laser lines are performed, allowing measurements of DWDM signals and multiple lines of Fabry-Perot lasers. Each laser line is assumed to have a linewidth (including modulation sidebands) of less than:
- 10 GHz for the 86120D, and
- 2.5 GHz for the 86122C
A broadband mode is also available for measuring the weighted center of wider lines.
This technical specifications sheet describes the measurement accuracy and operating conditions of the Keysight 86120D and 86122C Multi-Wavelength Meters. The specifications apply to all functions within the specified environmental conditions.
All specifications apply after the instrument’s temperature has been stabilized after 15 minutes continuous operation.
Definitions of Terms
Characteristics and specifications
The distinction between specifications and characteristics is described as follows:
- Specifications describe warranted performance.
- Characteristics provide useful, but non-warranted information about the functions and performance of the instrument.
- General Characteristics give additional information for using the instrument. These are general descriptive terms that do not imply a level of performance.
Specifications apply for wavelengths not equal to any water absorption line.
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