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   ANDO AQ2140 (AQ-2140)   Description / Specification:    
ANDO AQ2140 Optical Multimeter Mainframe

The Ando AQ2140 optical multimeter was developed to serve as a basic optical measurement instrument in a wide range of applications from R&D to optical fiber and component manufacture, and construction and maintenance. This single unit provides high precision, powerful functions and high-speed measurement, making it possible to use it as an optical power meter, a stabilized light source, a loss test set or a return loss measurement instrument. Sensor Features. Sensor unit; Measurement accuracy of ±2.5% is guaranteed under the reference conditions. Covers a wide waveband from 400 to 1870nm, and provides a dynamic range of 100dB or more for loss measurement. (It depends on sensors.) The AQ2733 and AQ2734 sensor units achieve a low polarization dependence of 0.02 dB p-p or less. The AQ2734 sensor unit uses a photodiode with flat wavelength sensitivity from 1300 to 1800nm, for accurate measurement at 1650nm as well. Light source unit; The LD unit has an internal isolator that maintain optical output level stability at ±0.003 dB. Optical power can be decreased in 0.1 dB steps to 6.0dB. A wide variety of optical connectors can be used just be exchanging the universal and connector adapters (AQ4214 excluded). Return loss unit; Because internal self-reflectance data is stored by individual units in memory to correct operations, even high-reflectance attenuation can be measured with excellent accuracy. The internal high-stability sensor can be used together with the LD unit to provide stable reflectance attenuation measurement. Mounted with a return loss unit and LD unit, the display will show reflectance attenuation after measurement of reference reflectance by merely disconnecting the measured fiber cable. Mainframe. Unit display Absolule, dBm, mW, uW, nW, pW, Relative: dB, Comparative: None. Range: Automatic or fixed (up/down). Measurement mode: Seleclable, CW light/chopped light (270Hz, 1kHz, 2kHz). Measurement interval: Seleclable 10(20)/50/100 ms. Display resolution Selectable (0.1, 0.01, 0.001).


Functional Test $80.00 *
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*This is a Web introductory price for one calibration of the ANDO AQ2140. Price does not in most cases include measurement performance data. Pricing does include NIST traceable calibration and issue of a calibration certificate and calibration label. Pricing may vary slightly due to volume and location of laboratory supporting calibration. Volume pricing may apply. On-site fees may apply depending on logistics, location and volume of work to be completed during the visit.

Related Optical Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Broadband Source (BBS)
A Broadband Source is a spectrally large source that emits a signal which contains a continuous range of frequencies with a broad optical bandwidth (usually 100 nm or more). Sometimes called a white light source, there are two different meanings of this term. Visible white light and a source which does not necessarily emit in the visible spectral region.

Coherence is the pattern and or relationships of waves due to phase properties.

Linearity is the relative difference between the displayed power ratio, Dx/D0, and the actual (true) power ratio Px/P0 caused by changing the displayed power level from the reference level, D0, to an arbitrary displayed level, Dx.

Power Flatness Over Modulation
When changing the wavelength and modulation frequency, and measuring the differences between actual and displayed power levels (in dB), the power flatness is ± half the span between the maximum and the minimum value of all differences.

Singlemode fiber
Singlemode Fiber has a small core, only about 9 microns, and is used for telephony and CATV with laser sources at 1300 and 1550 nm. It can go very long distances at very high speeds. Both multimode and singlemode fiber have an outside diameter of 125 microns - about 5 thousandths of an inch - just slightly larger than a human hair.

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