Equipment information:

Advantest Corporation Q8347 Spectrum analyzer
Manufacturer:
Advantest Corporation
Model: Q8347
Date: 1994
Category: Measurement instruments
Group: Spectrum analyzer
Description: Optical Spectrum Analyzer
Information:
                                    The Q8347 is an optical spectrum analyzer employing a
Michelson interferometer. Its main features
are given below.
Features
•
High-resolution wavelength measurement
The analyzer measures wavelength with high resolution of
0.01 nm at 1.5/^m band and
0.001 nm at 0.5/дп band.
Therefore, the analyzer can analyze the devices used for
multi-mode light or wavelength
division multiplexing that cannot be dissolve heretofore.
•
Coherent length can be measured.
The coherent length which cannot be measured by dispersion
spectroscopy using a grating
can be measured by the Q8347 using the interference method.
Therefore, the Q8347 can
easily determine the noise suppression performance of the
CD/VD laser diode due to the
•
reflected light. The analysis range is as wide as ± 165mm.
High-speed measurement
As the analyzer employs Fourier spectroscopy using an
interferometer, high-speed
measurement is realized.
Even when the GP!B is used in system, the entire procedure
from the measurement start
trigger to data output can be carried out in 2.5 seconds (in
the high-resolution mode) or in
1.0 second (in the normakesoiution mode). (In this case, the
wavelength range is the long
wavelength.)
•
±0.01nm wavelength measurement accuracy
As a He-Ne laser is used as the internal reference light
source, a high wavelength accuracy
of 0.01 nm is realized. Wavelength calibration is not required.
•
Easy operation
Various aspects have been taken into consideration to make
measurement easier.
The panel key arrangement, Softkey menus and basic key
functions can be specified in the
first hierarchy.
The Q8347 has a built-in level meter which greatly
facilitates adjustment of the
•
measurement light coupling.
Zoom function
The measurement data can be analyzed again and displayed
with the zoom function.
Data can be displayed from wide to narrow span without
repeating measurement.
•
Various processing functions
Various processing functions are available. They include
four types of FWHM (full width
half maximum) measurement function, an automatic peak search
function, four types of
cursor indication modes, a peak value listing function and
16 data memory areas.
•
Built-in high-speed printer
Measurement data can be easily output using a high-speed
thermal printer having a printing
speed of less than 8 seconds.

These manuals are available for the above equipment:

Advantest Corporation -- Q8347 -- User Manual
File name: Advantest-7978-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 299
Size: 9.19 Mbytes (9638872 Bytes)
Language: english
Revision:
Manual-ID/Number: FOE-8324212G02
Date: 20 March 1994
Quality: Scanned document, all readable.
Upload date:
MD5: c5ed7a007d666e6d7822294ae7598481
ed2kID: 5e778508724e1dcfc85b5c675e36b596
Downloads: 6 since 10 August 2016
Information:
1. G E N E R A L
...........................................................................
..
1-1
1.1 Outline of the Analyzer
................................................................
1.2 Before Using the Analyzer
...........................................
......................... ..
1.2.1 Checking the External and Accessories
.....................
1.2.2 Environment and Precautions
......................................................... ..
1.2.3 Power Source and Fuse ........................ ..
1.2.4 Expendables ..........................
.................. ..........................................
1.2.5 Setup ....... ......................
..................................... ..
1.2.6 Damage to Circuit Element Due to Power Line CMV Loop .
. . . . . .
1.2.7 Colored Liquid Crystal Display
.................................... ..........................
1.2.8 Cleaning the Input Optical Connector
...................................................
1.2.9 Operation when Power is Turned ON
............................. .....................
1.2.10 Setting the Print Paper
..........................................................................
1.2.11 Cleaning, Storage and Transportation
................................................
2. P A N E L S
.....................
.....................................................
............................ 2-1
2.1 Front Panel ......................................
.............................. .................................
2.2 Rear Panel
......................................................................................................
2-1
2-9
3. B A S IC O P E R A T IO N < For those using the analyzer
for the first time > . 3-1
3.1 Functions ........................
................................................................................
3.2 Entering the Light to be Measured
............................................. ..
3.3 Reading the LCD Display
............................................................................
3.4 Basic Operation Procedure ................... ..
3.5 Setting the Measurement Conditions ............
................................
3.6 Setting the Display Conditions
......................................................... ..
3.7 Measurement and Data Output ..........................
..................................... ..
3.8 Analyzing the Measurement Data ......................
.........................
3.9 Measurement Data Memory ...................
............................................
3.10 Operating Precautions (wavelength
resolution/sensitivity) . . . . . . . . . . 3-1
4. P A N E L O P E R A T IO N
........................................................
............. ..
4.1 FUNCTION S e c tio n
.....................................
.................................................
4.1.1 CENTER key
.............................................................................................
4.1.2 SPAN key
.................................................................................................
4.1.3 REF LEVEL key
........................................................................................
4.1.4 LEVEL SCALE key
...................................................................................
4.1.5 MODE key
..................................................................................................
4.1.6 AVERAGE key
..........................................................................................
4.1.7 ZOOM key
..................................................................................................
4.1.8 AUTO key
..................................................................................................
4.2 CURSOR Section
...........................................................................................
4.2.1 Cursor control
..........................................................................................
4.2.2 Rotry knob
..................................................................................................
4.3 DATA Section
........................................................
.........................................
4.3.1 Numeric keys, Arrow keys
.....................................................................
4.3.2 Setting the Label
......................................................................................
4.4 MEASURE Section
...................................................................................
4.4.1 SINGLE k e y
...............................................................................................
4.4.2 REPEAT key
........................................................................................
4.4.3 STOP key
..................................................................................................
4.5 DISPLAY Section
...........................................................................................
4.5.1 CONTROL k e y
.........................................................
................................
4.5.2 SAVE key, RECALL key
..........................................................................
4.5.3 NORMALIZE (LOSS/TRANS) key
.........................................................
4.5.4 SPECTRAL WIDTH key
..........................................................................
4.5.5 ADVANCE key
...........................................................................................
4.6 DATA OUT Section
........................................................................................
4.6.1 DEVICE k e y
...............................................................................................
4.6.2 COPY key
..................................................................................................
4.6.3 FEED key
.................................................................................................
4.7 GPIB Section
.........................................................
........................................
4.7.1 LOCAL (ADDRESS) key
................................................................
..
4.7.2 Status L a m p s
.............................................................................................
4.8 Other Keys
.......................................................................................................
4.8.1 INSTR PRESET key
.................................................................................
4.8.2 CAL key
....................................................................................................
5. E X P L A N A T IO N O N F U N C T ION
........................................................... 5-1
5.1 List of Softkey Menus
...................................................................................
5.2 Key Function and Corresponding Softkey Menus
....................................
5.2.1 FUNCTION Section
.................................................................................
5.2.2 CURSOR Section
......................................................................................
5.2.3 DATA Section
...........................................................................................
5-1
5.2.4
5.2.5
5.2.6
5.2.7
DISPLAY Section
...................................................................................
..
DATA OUT Section
...............................................................
..
GPIB Section
......................................................................
.....................
Others
..........................................................................................
6. G P IB IN T E R F A C E
.............................................. ..
6.1 General ..........................................
...................................... .................... ..
6.2 Specifications
..................................................
.........................................
6.2.1 GPIB Specifications
...............................................................................
6.2.2 Interface Function ..............
..............................................
6.3 GPIB Handling
...............................................................................................
6.3.1 Connecting Other Device ........................
..............................................
6.3.2 Program Code (Listener format)
.......................... ................................
6.3.3 Talker Format (Data output format)
......................................................
6.3.4 Service Request
................................................................
....................
6.3.5 Device Trigger Function
.................................................
.......................
6.3.6 Device Clear Function ...........................
................................................
6.3.7 Status Modification by Command
.......................... ..............................
6.3.8 Sample Program
....................................................................................
7. F L O P P Y D IS K
........... ............................................
.................................... 7-1
7.1 Handling the Floppy Disk .
........................................................
...................
7.1.1 Overview .........................................
..........................................................
7.1.2 Initialization (formatting) ............
.................. .........................................
7.1.3 Write Protect
............................................................................
................
7.1.4 Inserting/Ejecting the Floppy Disk
........................................................
7.2 Restoring Data from Floppy Disk ........................
............................. ..
7.2.1 Types of Data in the Floppy Disk ..............
.............. .................. ..
7.2.2 Data File item .......
..........................................
7.2.3 Example of Floppy Data Restore Program
................................. .. 7-1

8. E X A M P L E S O F M E A S U R E M E N T . . . . . . . .
. . . . . . . . . . . . . . 8-1
8.1 Measuring Coherence of a Laser Diode
......................... ..
8.2 Measuring the Spectral Half-width of an LED
.................... ..
8.3 Measuring the Loss Wavelength Characteristics of an
Optical Filter . . . 8-1
8-4
9. PRINCIPLE OF OPERATION
.....................................................
9.1 Explanation of the Operation Principle
9-1
....................................................... 9-1
10. SPECIFICATIONS
......................................................................
10-1
APPENDIX
............................................................................
.. . . . . A-1
A-1 Explanation of Technical Terms
......................................................
............ A-1
ALPHABETICAL INDEX
..................................................................
1-1
Q8347 EXTERNAL VIEW
......................................................................................
Q8347 FRONT VIEW
.............................................................................................
Q8347 REAR VIEW
...............................................................................................
EXT1
EXT2
EXT3
Advantest-7978-Manual-Page-1-Picture
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