BRISTOL INSTRUMENTS 428A CALIBRATION and BRISTOL INSTRUMENTS 428A REPAIR
 
A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the BRISTOL INSTRUMENTS 428A Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   BRISTOL INSTRUMENTS 428A   Description / Specification:    
BRISTOL INSTRUMENTS 428A Multi-Wavelength Meter

The Bristol instruments 428A Multi-Wavelength Meter combines proven Michelson interlerometer-based technology with fast Fourier transform analysis. This results in the ability to measure the wavelength and power of up to 250 discrete optical signals. Wavelength is measured to an accuracy as high as ± 0.3 pm and power is measured to an accuracy of ± 0.5 dB. In addition, the 428A system automatically calculates OSNR to greater than 40 dB. The wavelength accuracy of the 428A system is maintained over long periods of time because it is continuously calibrated with a built-in HeNe laser wavelength standard. In order to achieve the highest accuracy, the model 428A uses a single-frequency HeNe laser that is stabilized using a precise balanced longitudinal mode technique. Specifications. Optical Signal: CW and modulated. Wavelength Range: 1270 to 1650 nm (182 to 236 THz). Absolute Accuracy: ± 0.2 parts per miliion, (± 0.3 pm at 1550 nm). Differential Accuracy: ± 0.15 parts per miliion. Minimum Resolvable Seperation: 15 GHz, equal power lines input. Wavelength Display Resolution: 0.0001 nm. Power Calibration Accuracy: ± 0.5 dB, at ±30 nm from 1310 and 1550 nm. Flatness: ± 0.2 dB (1270 - 1600 nm), 30 nm from any wavelength. Linearity: ±0.3 dB (1270 - 1600 nm), lines above -30 dBm. Polarization Dependence: ± 0.5dB (1270-1600 nm). Power Display Resolution: 0.01 dB. Signal-To-Noise Ratio: > 40 dB with 100 averages, 100 GHz channel spacing; > 35 dB with 100 averages. 50 GHz channel spacing. Optical Input Signal Sensitivity Single line input: -40 dBm (1270 to 1600 nm), -30 dBm (1600 to 1650 nm). Optical Input Signal Sensitivity Multiple line input: 30 dB below total input power, but not less than single line input sensitivity. Maximum Power Displayed level: +10 dBm, sum of all lines input. Maximum Power Safe level: +18 dBm, sum of all lines input. Return Loss: 35 dB (UPC), 50 dB (APC). Maximum Number of Lines: 250. Optical Input: 9/125 um single-mode fiber (FC/UPC or FC/APC). Instrument Interface: SCPI via USB 2.0, Ethernet. and optional GPIB.



 

Standard Calibration $675.00 *
*This is a Web introductory price for one calibration of the BRISTOL INSTRUMENTS 428A. 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.

Chromatic Dispersion
Chromatic Dispersion is a broadening of the input signal as it travels down the length of the fiber. Chromatic Dispersion results from a variation in propagation delay with wavelength, and is affected by fiber materials and dimensions.

Detector
A Detector is a signal conversion device that converts power from one form to another, such as from optical power to electrical power

Jitter
Jitter in technical terms is the deviation in or displacement of some aspect of the pulses in a high-frequency digital signal. Jitter is the time variation of a periodic signal in electronics and telecommunications, often in relation to a reference clock source. Jitter may be observed in characteristics such as the frequency of successive pulses, the signal amplitude, or phase of periodic signals. Jitter is a significant, and usually undesired, factor in the design of almost all communications links (e.g., USB, PCI-e, SATA, OC-48). In clock recovery applications it is called timing jitter.

Polarization Mode Dispersion (PMD)
Polarization mode dispersion (PMD) is a form of modal dispersion where two different polarizations of light in a waveguide, which normally travel at the same speed, travel at different speeds due to random imperfections and asymmetries, causing random spreading of optical pulses. It is he difference between the maximum and minimum values of loss typically measured in ps/km^1/2.

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