The Keysight DCA-M series is based on Keysight's Digital Communication Analyzer (DCA) technology and is widely recognized as a benchmarking instrument to verify that optical transmitters meet communication standards. The DCA-M's compact form factor design offers a choice of optical and electrical channels from single to four channels for manufacturing and R&D applications. Its low-noise, high-sensitivity, calibrated reference receiver can be used to analyze both multimode and single-mode signals. The DCA-M is available in a wide range of models with associated software and compliance testing applications to ensure that you can measure and analyze electrical or optical communications devices with high accuracy.

The DCA-X broadband sampling oscilloscope is an important member of our digital Communication Analyzer (DCA) family. These modular platforms enable accurate measurements of high-speed digital designs ranging from 50 Mb/s to 224 Gb/s. Users can choose from a variety of plug-in modules to configure the DCA-X host for accurate optical communication, electrical, and time domain reflectometry/transmission (TDR/TDT) measurements. By selecting specific modules, users can obtain the required bandwidth, filtering, and sensitivity to meet a variety of measurement needs.

For optical and electrical waveform analysis, N1076B Electrical clock recovery module supports up to 64 GBd, N1077A optical/Electrical Clock recovery module supports up to 32 GBd, N1077B optical/Electrical Clock recovery module supports up to 64 GBd, The N1078A optical/electrical clock recovery module supports up to 64 GBd, providing a comprehensive clock recovery solution.

The user interface and operating system of the N107x series are identical to the N1000A and 86100D with modern FlexDCA interfaces. A user-supplied PC running the N1010A FlexDCA software can control the N107X with a simple USB 2.0 or 3.0 connection.

The N7745C, a replacement for Keysight's popular N7745A optical power meter, is deeply optimized for high measurement throughput and is suitable for characterizing multi-port optical devices such as multiplexers, PON splitters, wavelength selective switches (WSS) and ROADMs. With high-speed data acquisition and faster data transfer rates, this instrument uses dual-port RAM to simultaneously measure and read results without interrupting operation. In addition, the new function enables faster power range switching and reduces measurement and processing latency. The power threshold trigger feature now also supports transient measurement.

The N7744C also features the reliable N7740 fiber connection design, which is connected via a four-way fiber adapter with a fast locking clip. Even if the instrument is measuring other devices, the device under test can be easily connected to a four-way fiber optic adapter. Once connected, the adapter locks immediately, providing repeatable precision connections.

High channel density saves space and multiple instruments can be easily integrated into a single system for parallel programming control via LAN or USB connection. Common trigger functions throughout the range and a modern user interface accessible through a browser make it easy to configure instrument functions.

Multiport optical power meters with 2 or 4 channels provide linear or logarithmic feedback through analog output and extend the wavelength range up to 800 nm with options. Provides fast power range switching and simultaneous measurement and display of measurement results without interruption.

The N7747C is equipped with two power sensor channels and the N7748C is equipped with four power sensor channels. Each port can be connected to a proven 81000xI connector interface to meet common fiber optic connector standards.

The N7747C and N7748C continue the common trigger concept of the N77-C series and the modern user interface, which is accessible through a browser and allows users to easily configure the functions of the instrument. The instrument has high-speed measurement data acquisition capabilities and a faster data interface, and uses dual-port RAM to simultaneously measure and read results without interrupting either operation. In addition, the quick power range switching function helps to avoid unnecessary delays in the measurement process and post-processing.

The new 8162-C series optical power probe offers a 5mm detector area or integrating sphere, allowing flexible placement of the remote optical power meter and connection to the N7749C. Multiple adapter options allow input from popular fiber connector types, bare fiber, or open beam. The magnetic D-shaped adapter can be quickly removed and replaced without twisting the connected fiber.

The simple geometric design and high quality detectors provide the highest precision measurements. Some models also offer enhanced metrological reference quality calibration for working standards or other demanding applications.

The N7749C interface supports two to four optical power probes

N7749C optical probe interface controls remote probes. Reading is supported via LAN and USB interfaces, and comes with a built-in web browser GUI and a common SCPI command set for Keysight optical power meters. The double 1M sample buffer of each probe allows continuous sampling of internal or external triggered power values. The average sample time of the probe is usually between 100 microseconds and 10 seconds.

This design makes the N7749C ideal for versatile, accurate measurements that meet a wide range of optical measurement needs.

The Keysight N7781C is a compact high-speed polarization analyzer capable of comprehensive analysis of the polarization characteristics of optical signals, including the polarization state (SOP) represented by the Poincare sphere (Stokes parameter). Its built-in algorithms and calibration data ensure highly accurate measurements over a wide wavelength range.

With a real-time measurement capability of 1 MSa/s, the instrument is ideal for analyzing disturbed and fluctuating signals, as well as control applications that require real-time feedback of polarization information, such as digital control loops in automated manufacturing test systems. The N7781C is ideal for applications with high polarization measurement and control requirements.

The Keysight N7785C is a high-speed synchronous scrambler that can repeatedly switch a range of polarization states (SOP) through input and output trigger functions. The instrument has comprehensive polarization control and management capabilities with wavelength options covering the full CWDM wavelength range. Its <10 µs SOP cycle time and rugged design with no moving optics make it particularly suitable for a variety of applications.

The N7785C supports multiple modes of operation:

· Synchronous scrambler: An SOP that switches the output signal through a (pseudo-) random but repeatable code pattern with a switching time of just a few microseconds. The SOP remains stable for a predefined period of time until switching to the new SOP. The scrambler is kept in sync with external events through an electronically triggered input.

· SOP switch: Can quickly and repeatably switch the internal wave plate to a user-defined Angle.

· Traditional scrambler: Random walk code type smoothly changes the output SOP.

· Polarization stabilizer: Using feedback and external references, the SOP is set and stabilized by program commands.

The Keysight N7786C includes a high-speed lithium niobate polarization controller and a polarization analyzer that monitors the output signal and provides feedback to the controller. The instrument supports a variety of operating modes:

1. Polarization stabilizer: Even if the input SOP fluctuates and drifts, it can still provide a stable output polarization state (SOP), suitable for standard single-mode fiber (SMF). The output SOP can be defined in the following ways:

· After activating the "(set-and-forget)" switch, the device will maintain the current SOP even if the input changes.

· Define the target output SOP using Stokes parameters and set these parameters with polarization analyzer feedback.

· Switching output SOP with selected code type, cycle speed up to 100 kSOPs/s.

2. SOP switch: cyclic switching SOP sequence at a rate of more than 40 kHz. The internally set stabilizer function ensures fast direct switching in just a few microseconds and synchronizes with external events via electronically triggered inputs.

3. Traditional scrambler: Randomly change the output SOP to cover the entire Poincare ball in just a few milliseconds.

4. Polarization analyzer: provides sampling up to 1 MSa at a sampling rate of up to 1 MSa/s, ensuring true high-speed functionality.

5. Fast switching polarization controller: can be used in combination with the Optical Communication Application software suite (PAS) for single sweep wavelength-dependent PDL measurement.

The versatile and high-speed nature of the N7786C makes it ideal for optical polarization measurement and control.

The N7788C optical device analyzer combines polarization control and analysis functions for a variety of applications in the laboratory. In particular, the N7788C can be used with tunable laser sources to measure the effect of optical devices on signal polarization states (SOP). The measurement is based on generalized standard Jones Matrix Eigenanalysis (JME), using a unique single-scan polarization correlation method to determine parameters such as polarization mode dispersion (PMD), Difference group delay (DGD), and polarization dependent loss (PDL). This method makes the measurement more efficient and accurate.

Keysight Technologies' N777-C series tunable laser sources offer the full wavelength range from 1240 nm to 1650 nm with no wavelength gap. The N777-C series delivers the cost-effectiveness and performance required to test coarse wavelength division multiplexing (CWDM), dense wavelength division multiplexing (DWDM, LR4) and passive optical network (PON) components. Whether it's validating the design of demanding optical components, adjusting more wavelength-selector switches per hour, or requiring a stable, adjustable light source, the N777-C series offers the right model.

All N777-C models are based on a common resonator and laser module design with narrow linewidth, excellent long-term stability and low spontaneous emission levels. They are compatible with the 8160xA and 81600B laser software, but take up less rack space. The instrument's remote user interface can be accessed using a web browser via a LAN or USB connection. An optional touch screen display provides local operation access and display of current operation parameters. Compared to the top-of-the-line N7776C, the N7778C and N7779C offer additional price-performance options based on output power, tuning speed, wavelength accuracy and repeatability.