Anritsu VectorStar
Opto-Electronic Network Analyzers
ME7848A
The VectorStar opto-electronic network analyzer (ONA) series provides specified, traceable measurements of O/E, E/O, and O/O devices operating at 850, 1310, 1550 nm wavelengths up to 110 GHz
- Fast and accurate opto-electronic measurements — The VectorStar ME7848A 200 series ONA enables error-corrected transfer function, group delay, and return loss measurements of E/O and O/E components and subsystems.
- MN4765B O/E calibration module — The O/E calibration module is a thermally stabilized photodiode reference standard detector that can eliminate drift over temperature. Accurate bias voltage to the photodiode is maintained internally.
- MN4775A E/O converter — The E/O converter includes a lithium niobate (LiNbO3) modulator stabilized by a fully automatic bias controller and a tunable or fixed wavelength laser source. Excellent converter stability ensures characteristics remain consistent during measurement of opto-electronic DUT detectors and receivers.
- National Institute of Standards and Technology (NIST) derived characterization — Magnitude and phase characterization of the O/E calibration module is obtained using a primary standard characterized by NIST and held in the Anritsu Calibration Lab.
- Internal VNA de-embedding for simplified calibration — The built-in application menus provide instructions that guide the user through the set-up and calibrations required for making E/O, O/O, and O/E measurements.
- Excellent stability and repeatability — Use of full 12-term calibration with de-embedding results in stable and repeatable measurements of opto-electronic devices using the VectorStar VNA.
- Modularity and upgradeability — The VectorStar ME7848A ONA can be easily modified to a different wavelength by adding the appropriate MN4775A E/O converter and MN4765B O/E calibration detector. The VectorStar ME7838A 100 series can be upgraded to a 200 series by including the appropriate MN4775A E/O converter.
Product Description
Features
Options
Documents
E/O Converter Features
Product Description
The VectorStar ME7848A opto-electronic network analyzer (ONA) provides a modular approach to optical measurements of O/E, E/O, and O/O devices operating at 850, 1310, and 1550 nm wavelengths. There are two configurations available: the VectorStar ME7848A-100 series includes the MN4765B O/E calibration module and the VectorStar ME7848A-200 series adds the MN4775A E/O converter.
The VectorStar ME7848A-200 series provides the ability to quickly switch between O/E, E/O, and O/O measurements with specified traceable measurements established by the MN4765B O/E calibration module.
The VectorStar ME7848A ONA can be easily modified to different wavelengths by adding the appropriate MN4775A E/O converter and MN4765B O/E calibration detector. The VectorStar ME7838A-100 series can be upgraded to a 200 series by including the appropriate MN4775A E/O converter.
Measurement Capabilities
With the addition of the two modulators, VectorStar, along with a 110 GHz O/E photodetector, can make the following measurements. The inherent advantages that we had on the 70 GHz system are still applicable to the 110 GHz system, namely upgradability, flexibility of making opto-electronic and E/E measurements, and NIST traceability on the reference calibration photodetector.
- Responsivity parameters (frequency response, conversion efficiency, gain of receiver, etc.)
- Transfer functions
- Group delay measurements
- Optical losses
- Balanced measurements (four port differential frequency response, gain, etc. for differential electro-optical devices)
- E/E measurements (S11/S22)
Features
Opto-Electronic Features
- Fast and accurate opto-electronic measurements — The VectorStar ME7848A 200 series ONA enables error-corrected transfer function, group delay, and return loss measurements of E/O and O/E components and subsystems.
- MN4765B O/E calibration module — The O/E calibration module is a thermally stabilized photodiode reference standard detector that can eliminate drift over temperature. Accurate bias voltage to the photodiode is maintained internally.
- MN4775A E/O converter — The E/O converter includes a lithium niobate (LiNbO3) modulator stabilized by a fully automatic bias controller and a tunable or fixed wavelength laser source. Excellent converter stability ensures characteristics remain consistent during measurement of opto-electronic DUT detectors and receivers.
- National Institute of Standards and Technology (NIST) derived characterization — Magnitude and phase characterization of the O/E calibration module is obtained using a primary standard characterized by NIST and held in the Anritsu Calibration Lab.
- Internal VNA de-embedding for simplified calibration — The built-in application menus provide instructions that guide the user through the set-up and calibrations required for making E/O, O/O, and O/E measurements.
- Excellent stability and repeatability — Use of full 12-term calibration with de-embedding results in stable and repeatable measurements of opto-electronic devices using the VectorStar VNA.
- Modularity and upgradeability — The VectorStar ME7848A ONA can be easily modified to a different wavelength by adding the appropriate MN4775A E/O converter and MN4765B O/E calibration detector. The VectorStar ME7838A 100 series can be upgraded to a 200 series by including the appropriate MN4775A E/O converter.
Spectrum Analyzer Option
- SPA available from 70KHz to 20/40/70/110/125/145 and 220GHz. Also available for banded configuration to 1.1THz.
- Dual SPA mode available: suitable for Mixers/Amplifier/ Harmonics /Spurious testing.
- SPA available on all ports. User can define which port to use as SPA port.
- Several detection types available in classical mode: Peak, minimum, RMS, Mean.
- Various math functions can be applied on SPA mode like Min hold/max hold/ user defined equations.
- Sources and receivers can be independently configured. Can be used as Tracking Generator.
- For units that have a dual source, a dual drive option is available. Support for external source control also possible.
- Phase synchronization for units with Dual source available. This feature allows users to control and configure the phase between the two sources.
- Source and receiver attenuator available with VNA can be activated in SPA mode. Recommendation to use option 62 (with attenuator on receiver side) for measuring the spectrum content of high-power devices.
- Software option: easy to install and upgrade existing user equipment.
Other Features
- Broadest frequency span from a single coaxial test port covering 70 kHz to 70 GHz in a single instrument and 70 kHz to 145 GHz in the Broadband configuration. Extendable to 1.1 THz
- Universal Fixture Extraction (UFX) software option provides advanced de-embedding tools for test fixture extraction.
- IMDView™ software coupled with the internal combiner option offers the ability to switch from S parameters to IMD measurements in a single connection
- Highest performance pulse measurements— PulseView™ offers 2.5 ns pulse resolution with 100 dB dynamic range
- 4-port single-ended or balanced measurements using DifferentialView™ analysis
- Internal trace-based eye diagram option provides the ability to display Time Domain, S-Parameters, and Eye Diagram analysis with active sweep updates
- Superior Dynamic Range – up to 142 dB
- High available power – up to +14 dBm
- Best test port characteristic performance – up to 50 dB in Directivity
- Best time domain analysis
- Fast and accurate optoelectronic measurements from 70 kHz to 40, 70 GHz and 110 GHz, at 850, 1060, 1310 and 1550 nm wavelengths, using MN4765B O/E Calibration module
Options
ME7848A VectorStar ONA Configurations:
| Model | Description |
| ME7848A-0210 | 110 GHz 1550 nm system with O/E Calibration Module and E/O Converter (based on ME7838AX broadband VNA system) |
| ME7848A-0211 | 110 GHz 1310 nm system with O/E Calibration Module and E/O Converter (based on ME7838AX broadband VNA system) |
| ME7848E-0210 | 110 GHz 1550 nm system with O/E Calibration Module and E/O Converter (based on ME7838EX broadband VNA system) |
| ME7848E-0211 | 110 GHz 1310 nm system with O/E Calibration Module and E/O Converter (based on ME7838EX broadband VNA system) |
| ME7848A-0240 | 40 GHz, 850 nm system with O/E Calibration Module and E/O Converter (Requires Option 51, 61, or 62 (for MS4644B), sold separately) |
| ME7848A-0270 | 70 GHz, 1550 nm system with O/E Calibration Module and E/O Converter (Requires Option 51, 61, or 62 (for MS4647B), sold separately) |
| ME7848A-0271 | 70 GHz, 1310 nm system with O/E Calibration Module and E/O Converter (Requires Option 51, 61, or 62 (for MS4647B), sold separately) |
| ME7848A-0272 | 70 GHz, 1310/1550 nm system with O/E Calibration Module and E/O Converter (Requires Option 51, 61, or 62 (for MS4647B), sold separately) |
| ME7848A-0110 | 110 GHz 1550 nm system with O/E Calibration Module only (based on ME7838AX broadband VNA system) |
| ME7848A-0111 | 110 GHz 1310 nm system with O/E Calibration Module only (based on ME7838AX broadband VNA system) |
| ME7848A-0112 | 110 GHz 1310/1550 nm system with O/E Calibration Module only (based on ME7838AX broadband VNA system) |
| ME7848E-0110 | 110 GHz 1550 nm system with O/E Calibration Module only (based on ME7838EX broadband VNA system) |
| ME7848E-0111 | 110 GHz 1310 nm system with O/E Calibration Module only (based on ME7838EX broadband VNA system) |
| ME7848E-0112 | 110 GHz 1310/1550 nm system with O/E Calibration Module only (based on ME7838EX broadband VNA system) |
| ME7848A-0140 | 40 GHz, 850 nm system with O/E Calibration Module only (Requires Option 51, 61, or 62 (for MS4644B), sold separately) |
| ME7848A-0170 | 70 GHz, 1550 nm system with O/E Calibration Module only (Requires Option 51, 61, or 62 (for MS4647B), sold separately) |
| ME7848A-0171 | 70 GHz, 1310 nm system with O/E Calibration Module only (Requires Option 51, 61, or 62 (for MS4647B), sold separately) |
| ME7848A-0172 | 70 GHz, 1310/1550 nm system with O/E Calibration Module only (Requires Option 51, 61, or 62 (for MS4647B), sold separately) |
Documents
- VectorStar Opto-Electronic Network Analyzer ME7848A Quick Fact Sheet
- Opto-electronic Network Analyzer ME7848A Technical Data Sheet
- Electrical to Optical Converter MN4775A Technical Data Sheet
- EU Declaration of Conformity for the Opto-electronic Network Analyzer ME7848A
- EU Declaration of Conformity for the E/O Converter MN4775A
- Material Measurements with Vector Network Analyzers Application Note
E/O Converter Features
Electrical to Optical Converter MN4775A
The MN4775A is an electrical to optical converter that uses an RF input signal to intensity modulate an internal laser. The E/O converter is used in conjunction with the VectorStar MS464xB or the Shockline MS4652xB series VNAs and the MN4765B optical to electrical (O/E) converter to perform highly accurate and stable optoelectronic measurements of both modulators (E/O) and photoreceivers (O/E). The MN4775A includes a laser, an optical Mach-Zehnder intensity modulator and a variable optical attenuator to control its output power. Internal circuitry provides various power and modulation configurations as well as stabilizes overall performance.
Configuration Options
- MN4775A-0040 40 GHz modulation bandwidth and internal 850 nm laser
- MN4775A-0070 70 GHz modulation bandwidth and internal C-Band laser set to 1550 nm
- MN4775A-0071 70 GHz modulation bandwidth and internal 1310 nm fixed laser
- MN4775A-0072 70 GHz modulation bandwidth and internal 1310 nm fixed laser and internal C-Band laser set to 1550 nm (optically switched)
- MN4775A-0110 110 GHz modulation bandwidth and internal C-Band laser set to 1550 nm
- MN4775A-0111 110 GHz modulation bandwidth and internal 1310 nm fixed laser
Additional Features
- Fully integrated E/O to support a complete optoelectronic characterization system
- Mach-Zehnder intensity modulator and bias controller with manual and fully automatic operation modes
- Variable Optical Attenuator (VOA) for automatic or manual power control
- Internal biasing for stable operation and temperature compensation
- Internal optical power detection/monitoring
- Configurability for adapting to measurement applications
- Optical output power control
- Modulator biasing alternatives
- Intuitive Touchscreen Front panel control of optical components as well as remote control via rear panel USB or RS-232 connections
- In Options -007x and -011x, a jumper loop is provided which enables using an external laser (with the internal modulator and output control) from 1250 nm to 1610 nm.