Difference between Anritsu MS9740B and MS9740A Spectrum Analysers?
The main differences between the MS9740B and the MS9740A are the reduction in measurement processing time and the application of high-speed signal processing technology.The MS9740B reduces measurement processing time by half while maintaining the original functions and performance. This has been achieved by improving productivity and reducing measurement and inspection time, thereby increasing the productivity of optical active equipment manufacturers. In addition, the MS9740B employs advanced optical design and high-speed signal processing technology to enable fast and accurate spectral analysis over a wide range of wavelengths. This includes everything from waveform scanning to waveform parsing and data transfer to external control equipment, achieving overall test speeds of less than 0.2 seconds at the shortest.
Although both support multimode fibre inputs and have a wavelength range of 600 nm to 1750 nm, suitable for 850 nm band VCSEL fabrication and evaluation, the MS9740B has been optimised in terms of processing speed and measurement sensitivity, overcoming the problem of reduced measurement sensitivity caused by faster processing speeds. In addition, the MS9740B offers a wider dynamic range and higher resolution, and supports a simplified analysis process.
In summary, the MS9740B offers improvements and enhancements in measurement processing time, signal processing techniques, dynamic range, resolution, and overall test speed over the MS9740A. These improvements make the MS9740B more suitable for the manufacture and evaluation of active optical devices that require efficient inspection.
What are the specific differences in optical design between the MS9740B and the MS9740A?
Reduction of measurement processing time: While maintaining the same measurement sensitivity performance, functionality and size as its predecessor, the MS9740A, the MS9740B reduces the measurement processing time by 50% by optimising the optical receiver bandwidth setting of the spectrum analyser MS9740B. 2. Maximum output power of the built-in laser: Although the literature does not directly refer to the specific parameters of the MS9740A , it is clear from the description of the MS9740B that it has a built-in laser and lists the maximum output power (mW), pulse width (s)/repetition rate, and emission wavelength (nm). This suggests that the MS9740B may have been optically designed with different technologies or materials to achieve higher output power and a wider wavelength range for different application scenarios.
High-performance optical resolution and high-speed measurements: The MS9740A is described as offering high-performance optical resolution and high-speed measurements that can meet the needs of device and component manufacturers. Waveform data can be measured and transferred to an external control device in less than 0.2 seconds, a 5x speed increase over previous Anritsu models. Although this description is directly associated with the MS9740A, it indirectly reflects the design philosophy of the MS9740 series, which seeks high performance and speed. Combined with the MS9740B's improvements in measurement processing time, it can be surmised that the MS9740B also focuses on improving performance and efficiency in its optical design.
The specific differences in optical design between the MS9740B and the MS9740A are mainly in the optimisation of measurement processing time, the maximum output power of the built-in laser, and the continued pursuit of high performance optical resolution and high speed measurement. These differences enable the MS9740B to offer higher productivity and a wider range of usage scenarios while maintaining similar functionality and size to the MS9740A.
What specific technologies or methods are included in the MS9740B's high-speed signal processing technology?
Wide dynamic range: The dynamic range of the MS9740B reaches 80 dB (1 nm bandwidth), which makes it possible to clearly observe spectra with a high signal-to-noise ratio (SNR).
Signal Level Integration Function: The signal level integration function for modulated signals is supported, which helps to estimate the noise position more accurately during analysis.
Noise Fitting Function: The noise fitting function can be used to accurately estimate the noise position, which is critical for improving measurement accuracy.
Optical axis alignment, wavelength calibration, and effective resolution calibration functions: These functions ensure the accuracy and reliability of measurements, especially when processing high-speed signals.
High Decomposition Energy and High-Speed Scanning: The MS9740B achieves high decomposition energy and high-speed scanning, which is important for capturing fast-changing signals.
Multi-mode fibre input: Support for multi-mode fibre input, especially ideal for fabrication and evaluation of VCSELs in the 850 nm band, demonstrates its flexibility in processing different types of high-speed signals.
The MS9740B's high-speed signal processing techniques cover a wide range of areas from wide dynamic range, signal level integration, and noise fitting functions to optical axis alignment, wavelength calibration, effective resolution calibration, and high decomposition energy and high-speed scanning, which together ensure its high efficiency and accuracy in the field of high-speed signal processing.
How can the improvements in dynamic range and resolution of the MS9740B be quantified?
The improvements in dynamic range and resolution of the MS9740B spectrum analyser can be quantified in the following ways:
Dynamic range: according to my search, the MS9740B has a wide dynamic range of over 70 dB. However, the exact value of its dynamic range varies in different literature. For example, one source mentions a high dynamic range of 60 dB and a normal dynamic range of 58 dB. this suggests that the MS9740B is designed to provide a wide measurement range to suit different testing needs.
Resolution: The MS9740B has a resolution of 0.05nm, measured at 1550nm wavelength and with optical attenuation turned off (Att: Off) at a temperature of 20 to 30°C. The MS9740B has a resolution of 0.05nm, measured at 1550nm wavelength and with optical attenuation turned off (Att: Off) at a temperature of 20 to 30°C. This improved resolution means that the MS9740B is able to more accurately measure subtle differences in the spectrum, which is especially important for application scenarios that require high-precision measurements.
Measurement processing time: The MS9740B halves the measurement processing time while overcoming the problem of reduced measurement sensitivity caused by faster processing. This is not directly related to the quantification of dynamic range and resolution, but it demonstrates the MS9740B's ability to improve efficiency while maintaining high-performance measurements.
Support for multimode fibre input: The MS9740B supports multimode fibre input, which makes it suitable for a wide range of application scenarios such as manufacturing and evaluating 850nm band VCSEL modules. This flexibility further enhances its suitability and performance in different applications.
Improvements to the dynamic range and resolution of the MS9740B focus on its wide dynamic range, high resolution, and fast measurement processing capabilities. These improvements enable the MS9740B to meet a wider range of measurement needs with higher accuracy, especially in the fields of optical communications and optoelectronic device manufacturing.
How exactly does the MS9740B support a simplified analysis process?
MS9740B supports simplified analysis process mainly through the following aspects:
Full-band real-time spectrum analysis: The MS9740B is capable of full-band real-time spectrum analysis, which means it is able to capture episodic or transient signals, thus reducing the time and complexity of testing.
All-in-one design: The MS9740B is an all-in-one spectrum analyser with integrated SM and MM fibres. This design reduces the total time required from waveform scanning to data transfer to an external control device, making the entire analysis process simpler and more efficient.
Automatic Optical Calibration and Waveform Calibration: Before performing measurements, the MS9740B needs to be warmed up for at least 2 hours and scans are repeated under specific conditions (span ≥ 100 nm, video bandwidth ≥ 10 kHz). This is followed by automatic optical calibration (WI Cal) and waveform calibration. These automated calibration processes reduce manual intervention and further simplify the operational process44.
MM Mode Function: The MS9740B features an MM Mode function for calibrating loss when connecting 50 µm/125 µm multimode fibres and displaying the level. This feature simplifies the process of multimode fibre testing, allowing users to complete tests more quickly and accurately.
The MS9740B simplifies the analysis process and improves test efficiency and accuracy through features such as its full-band real-time spectrum analysis capability, all-in-one design, automated calibration process, and MM mode function.
What is the impact of the MS9740B on measurement sensitivity and its optimisation?
The impact of the MS9740B on measurement sensitivity is mainly reflected in its optimised design to increase measurement processing speed while maintaining the original functionality and performance.The MS9740B has successfully overcome issues that could have led to a decrease in measurement sensitivity with faster processing speed. In addition, the MS9740B reduces measurement processing time by 50 per cent compared with its predecessor, the MS9740A, while maintaining the same measurement sensitivity performance, functionality and size. This demonstrates that the MS9740B improves productivity while ensuring measurement accuracy and sensitivity.
In order to further optimise the measurement sensitivity of the MS9740B, the following measures were taken: firstly, production line efficiency was improved by optimising the bandwidth settings of the MS9740B optical receiver, which is commonly used by users as a spectrum analyser. Second, the MS9740B-020 version introduces a new measurement function for evaluating pulsed laser diode (LD) chips. This new solution reduces the testing time of pulsed LD chips, thus improving the production efficiency of high-power LD chips. These optimisations not only enhance the performance of the MS9740B, but also ensure that measurement sensitivity is not sacrificed during high-speed measurements.
The MS9740B effectively maintains measurement sensitivity while increasing measurement processing speed through optimised design and technical improvements, and further enhances productivity and measurement accuracy through specific optimisation measures.
The main differences between the MS9740B and the MS9740A are the reduction in measurement processing time and the application of high-speed signal processing technology.The MS9740B reduces measurement processing time by half while maintaining the original functions and performance. This has been achieved by improving productivity and reducing measurement and inspection time, thereby increasing the productivity of optical active equipment manufacturers. In addition, the MS9740B employs advanced optical design and high-speed signal processing technology to enable fast and accurate spectral analysis over a wide range of wavelengths. This includes everything from waveform scanning to waveform parsing and data transfer to external control equipment, achieving overall test speeds of less than 0.2 seconds at the shortest.
Although both support multimode fibre inputs and have a wavelength range of 600 nm to 1750 nm, suitable for 850 nm band VCSEL fabrication and evaluation, the MS9740B has been optimised in terms of processing speed and measurement sensitivity, overcoming the problem of reduced measurement sensitivity caused by faster processing speeds. In addition, the MS9740B offers a wider dynamic range and higher resolution, and supports a simplified analysis process.
In summary, the MS9740B offers improvements and enhancements in measurement processing time, signal processing techniques, dynamic range, resolution, and overall test speed over the MS9740A. These improvements make the MS9740B more suitable for the manufacture and evaluation of active optical devices that require efficient inspection.
What are the specific differences in optical design between the MS9740B and the MS9740A?
Reduction of measurement processing time: While maintaining the same measurement sensitivity performance, functionality and size as its predecessor, the MS9740A, the MS9740B reduces the measurement processing time by 50% by optimising the optical receiver bandwidth setting of the spectrum analyser MS9740B. 2. Maximum output power of the built-in laser: Although the literature does not directly refer to the specific parameters of the MS9740A , it is clear from the description of the MS9740B that it has a built-in laser and lists the maximum output power (mW), pulse width (s)/repetition rate, and emission wavelength (nm). This suggests that the MS9740B may have been optically designed with different technologies or materials to achieve higher output power and a wider wavelength range for different application scenarios.
High-performance optical resolution and high-speed measurements: The MS9740A is described as offering high-performance optical resolution and high-speed measurements that can meet the needs of device and component manufacturers. Waveform data can be measured and transferred to an external control device in less than 0.2 seconds, a 5x speed increase over previous Anritsu models. Although this description is directly associated with the MS9740A, it indirectly reflects the design philosophy of the MS9740 series, which seeks high performance and speed. Combined with the MS9740B's improvements in measurement processing time, it can be surmised that the MS9740B also focuses on improving performance and efficiency in its optical design.
The specific differences in optical design between the MS9740B and the MS9740A are mainly in the optimisation of measurement processing time, the maximum output power of the built-in laser, and the continued pursuit of high performance optical resolution and high speed measurement. These differences enable the MS9740B to offer higher productivity and a wider range of usage scenarios while maintaining similar functionality and size to the MS9740A.
What specific technologies or methods are included in the MS9740B's high-speed signal processing technology?
Wide dynamic range: The dynamic range of the MS9740B reaches 80 dB (1 nm bandwidth), which makes it possible to clearly observe spectra with a high signal-to-noise ratio (SNR).
Signal Level Integration Function: The signal level integration function for modulated signals is supported, which helps to estimate the noise position more accurately during analysis.
Noise Fitting Function: The noise fitting function can be used to accurately estimate the noise position, which is critical for improving measurement accuracy.
Optical axis alignment, wavelength calibration, and effective resolution calibration functions: These functions ensure the accuracy and reliability of measurements, especially when processing high-speed signals.
High Decomposition Energy and High-Speed Scanning: The MS9740B achieves high decomposition energy and high-speed scanning, which is important for capturing fast-changing signals.
Multi-mode fibre input: Support for multi-mode fibre input, especially ideal for fabrication and evaluation of VCSELs in the 850 nm band, demonstrates its flexibility in processing different types of high-speed signals.
The MS9740B's high-speed signal processing techniques cover a wide range of areas from wide dynamic range, signal level integration, and noise fitting functions to optical axis alignment, wavelength calibration, effective resolution calibration, and high decomposition energy and high-speed scanning, which together ensure its high efficiency and accuracy in the field of high-speed signal processing.
How can the improvements in dynamic range and resolution of the MS9740B be quantified?
The improvements in dynamic range and resolution of the MS9740B spectrum analyser can be quantified in the following ways:
Dynamic range: according to my search, the MS9740B has a wide dynamic range of over 70 dB. However, the exact value of its dynamic range varies in different literature. For example, one source mentions a high dynamic range of 60 dB and a normal dynamic range of 58 dB. this suggests that the MS9740B is designed to provide a wide measurement range to suit different testing needs.
Resolution: The MS9740B has a resolution of 0.05nm, measured at 1550nm wavelength and with optical attenuation turned off (Att: Off) at a temperature of 20 to 30°C. The MS9740B has a resolution of 0.05nm, measured at 1550nm wavelength and with optical attenuation turned off (Att: Off) at a temperature of 20 to 30°C. This improved resolution means that the MS9740B is able to more accurately measure subtle differences in the spectrum, which is especially important for application scenarios that require high-precision measurements.
Measurement processing time: The MS9740B halves the measurement processing time while overcoming the problem of reduced measurement sensitivity caused by faster processing. This is not directly related to the quantification of dynamic range and resolution, but it demonstrates the MS9740B's ability to improve efficiency while maintaining high-performance measurements.
Support for multimode fibre input: The MS9740B supports multimode fibre input, which makes it suitable for a wide range of application scenarios such as manufacturing and evaluating 850nm band VCSEL modules. This flexibility further enhances its suitability and performance in different applications.
Improvements to the dynamic range and resolution of the MS9740B focus on its wide dynamic range, high resolution, and fast measurement processing capabilities. These improvements enable the MS9740B to meet a wider range of measurement needs with higher accuracy, especially in the fields of optical communications and optoelectronic device manufacturing.
How exactly does the MS9740B support a simplified analysis process?
MS9740B supports simplified analysis process mainly through the following aspects:
Full-band real-time spectrum analysis: The MS9740B is capable of full-band real-time spectrum analysis, which means it is able to capture episodic or transient signals, thus reducing the time and complexity of testing.
All-in-one design: The MS9740B is an all-in-one spectrum analyser with integrated SM and MM fibres. This design reduces the total time required from waveform scanning to data transfer to an external control device, making the entire analysis process simpler and more efficient.
Automatic Optical Calibration and Waveform Calibration: Before performing measurements, the MS9740B needs to be warmed up for at least 2 hours and scans are repeated under specific conditions (span ≥ 100 nm, video bandwidth ≥ 10 kHz). This is followed by automatic optical calibration (WI Cal) and waveform calibration. These automated calibration processes reduce manual intervention and further simplify the operational process44.
MM Mode Function: The MS9740B features an MM Mode function for calibrating loss when connecting 50 µm/125 µm multimode fibres and displaying the level. This feature simplifies the process of multimode fibre testing, allowing users to complete tests more quickly and accurately.
The MS9740B simplifies the analysis process and improves test efficiency and accuracy through features such as its full-band real-time spectrum analysis capability, all-in-one design, automated calibration process, and MM mode function.
What is the impact of the MS9740B on measurement sensitivity and its optimisation?
The impact of the MS9740B on measurement sensitivity is mainly reflected in its optimised design to increase measurement processing speed while maintaining the original functionality and performance.The MS9740B has successfully overcome issues that could have led to a decrease in measurement sensitivity with faster processing speed. In addition, the MS9740B reduces measurement processing time by 50 per cent compared with its predecessor, the MS9740A, while maintaining the same measurement sensitivity performance, functionality and size. This demonstrates that the MS9740B improves productivity while ensuring measurement accuracy and sensitivity.
In order to further optimise the measurement sensitivity of the MS9740B, the following measures were taken: firstly, production line efficiency was improved by optimising the bandwidth settings of the MS9740B optical receiver, which is commonly used by users as a spectrum analyser. Second, the MS9740B-020 version introduces a new measurement function for evaluating pulsed laser diode (LD) chips. This new solution reduces the testing time of pulsed LD chips, thus improving the production efficiency of high-power LD chips. These optimisations not only enhance the performance of the MS9740B, but also ensure that measurement sensitivity is not sacrificed during high-speed measurements.
The MS9740B effectively maintains measurement sensitivity while increasing measurement processing speed through optimised design and technical improvements, and further enhances productivity and measurement accuracy through specific optimisation measures.