Advantest Q8384 Optical Spectrum Analyzer

Advantest Q8384  Optical Spectrum Analyzer

Product Description

Can measure and evaluate ultra high-speed optical DWDM transmission systems, and optical components at high wavelength resolution and high accuracy. New high-end optical spectrum analyzer adopting a new four-pass monochromator system providing high wavelength resolution and wide dynamic range. 

● 10 pm resolution bandwidth 

● 20 pm wavelength accuracy (after calibration with Opt. 25) 

● Wide dynamic range: 50 dB (±0.1 nm), 60 dB (±0.2 nm) 

● Optical frequency display 

● Accurate NF measurement on EDFAs 

● Can handle power levels as high as +23 dBm (200 mW) 

● Abundance of WDM analysis functions 

● Limit line function for Pass/Fail analysis provided

Excellent Basic Performance

10 pm high wavelength resolution

The Q8384 realizes a wavelength resolution bandwidth as high as 10 pm through the employment of a newly developed monochromator system. This makes it possible to measure and evaluate the side bands of optical signals which are intensity modulated at 10 Gbps, a task formerly impossible with conventional spectrum analyzers.

20 pm high wavelength accuracy

The Q8384 can measure wavelengths at an accuracy of ±20 pm within the wavelength range of the 1530 to 1570 nm C-band and at ±40 pm within the L-band range of 1570 to 1610 nm after being calibrated with the built-in calibration light source (option 25). It can accurately evaluate the exacting characteristics of laser diodes and optical filters used in DWDM transmission systems. Since the Q8384 provides a wavelength linearity of ±10 pm for the wavelength range of 1530 to 1570 nm, it can also accurately measure the wavelength interval of wavelength division multiplexed signals.

50 dB (±0.1 nm)/60 dB (±0.2 nm) wide dynamic ranges

Signals are subject to wavelength division multiplexing spaced at 50 GHz (0.4 nm) or shorter intervals in a DWDM system. An optical spectrum analyzer with superior dynamic range is required to separate and measure these tightly spaced signals. The Q8384 realizes a dynamic range of 60 dB or more at 0.2 nm making it ideal for this task. At 0.1 nm, the instrument provides a dynamic range of 50 dB or more, thus enabling it to support future DWDM systems with signals at even closer intervals.

Measuring the noise figure of an optical fiber amplifier

The Q8384 makes one button measurements of the noise figure with high accuracy possible through performance enhancements in dynamic range, polarization dependency, level accuracy, linearity, wavelength resolution setting accuracy, etc. and applying curve fitting and other functions. Since the Q8384 can accurately determine the ASE level of DWDM signals that are multiplexed at intervals of 50 GHz (0.4 nm) or narrower, it provides not only the capability to perform accurate noise figure measurements but also the capability to show a listing of multiple measurement results at the same time.

Data storage capabilities

The Q8384 can store data in two formats with the built-in standard floppy disk drive. TEXT format (numeric format) Measurement conditions and data are in ASCII format. The stored data may be restored by the Q8384 or read directly with a personal computer. BITMAP format The BITMAP format is used to store a bitmap image of the screen display on a floppy disk with no data manipulation. Built-in printer Additionally, the built-in high-speed thermal printer allows the user to make hardcopy images of measured data.

Calibration light source with EE-LED Output (OPTION 25)

Built-in wavelength calibration light source with acetylene cell to guarantee high-precision wavelength accuracy, and the 1550 nm C-band EE-LED (Edge Emitting LED) light source. This LED source can also be used as a low level broadband light source for device measurement