KEYSIGHT N7784B CALIBRATION and KEYSIGHT N7784B 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 KEYSIGHT N7784B Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   KEYSIGHT N7784B   Description / Specification:    
KEYSIGHT N7784B 1260 to 1640 nm High Speed Polarization Controller

The Keysight N7784B polarization controller contains a high-speed polarization controller plus microcontroller-based driving circuitry. It can operate in various modes.
As a polarization stabilizer, it provides a stable output state of polarization (SOP) even with fluctuations
and drifts of the input SOP as occurring for example through temperature drift and mechanical settling
processes.
As a synchronous scrambler, the device switches the SOP of the output signal in a random (pseudo) way.
As an SOP switch, the N7784B allows switching the internal waveplates to user definable angles with
very high speed and repeatability.
As traditional scrambler the N7784B varies the output SOP smoothly in a random/pseudo random way.
Specifications.

Wavelength.
Operating wavelength range: 1260 to 1640 nm.
Wavelength range in stabilizer mode: 1520 to 1580 nm.

Polarization control and stabilization.
SOP switching time (open-loop): < 10 μs.
PER at PMF output (typical): > 23 dB.
Stabilizer response time (typical): 2 ms.

Optical power.
Insertion loss port I to port II: < 3.5 dB (< 3.0 dB, typical).
Insertion loss port III to port IV: < 1.8 dB (< 1.4 dB, typical).
PDL port I to port II (typical): < 0.2 dB (C/L-Band), < 0.5 dB (O-Band).
Maximum safe input power: 20 dBm (Port I), 3 dBm (Port III).
Input power range in stabilizer mode Port III: -30 to 0 dBm.

Options.
N7784B-021 Straight contact connectors.
N7784B-022 Aangled contact connectors.



 

Standard Calibration $1,040.00 *
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*This is a Web introductory price for one calibration of the KEYSIGHT N7784B. 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.

Coherence Time
Average time for the wave train to lose its phase realtionships

Fiber Bragg Grating (FBG)
A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by adding a periodic variation to the refractive index of the fiber core, which generates a wavelength specific dielectric mirror. A fiber Bragg grating can therefore be used as an inline optical filter to block certain wavelengths, or as a wavelength-specific reflector.

Modulation
Modulation is the process by which the characteristic of one wave (the carrier) is modified by another. Adding information into pulses of light.

Power Linearity
When changing the power level and measuring the differences (in dB) between actual and displayed power levels, the power linearity is ± half the span (in dB) between the maximum and the minimum value of all differences.

Stability
Stability is the extent to which a specified property, characteristic, or parameter of a substance, device, or apparatus, such as a fiber optic transmission system, remains fixed with the passage of time or with varying environmental conditions.

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