32 Agilent 5517B/BL/C/D/DL/FL User’s Guide
4 Performance Tests
Introduction
The performance tests apply to all laser heads, except the 5517FL. These
tests are usually performed upon acceptance testing, first use, when a
problem is suspected in the laser head, and after repairs or tube and
power supply replacement. Performance tests include the laser beam
power output test and the split frequency test. A wavelength test can also
be performed, but is not covered in this manual (see “Wavelength test" on
page 36).
Recommended Test Equipment
Table 9 lists critical specifications for the required test equipment. Any
equipment that satisfies the critical specifications given in the table may
be substituted for the recommended model(s).
1
Equipment having equivalent characteristics can be substituted.
2
Use with 10884B or 10881D when using the E3615A.
Tab le 9 Recommended Test Equipment
Instrument USE* Critical Specifications Recommended Equipment
1
Digital voltmeter A DC Volts:
Floating Inputs
Input Resistance: >10 M
Ω
Range: 1, 10, 20 Volts DC
Ac curacy: 0.1%
Agilent 34401A Digital Multimeter
Laser powe r
meter
P Range: 1
μ
W to 1 mW
Accuracy: ±10%
Newport Power Meter 1935-C or
equivalent
Frequency
counter
P, A Frequency range: Agilent 53181A connected to a
house standard.
Laser h ea d
power suppl ie s
A +15V at 3A
–15V at 0.3A
two Agilent E3615A Power
Supplies
Laser h ea d
cable
P 1 8-pin an d 4-pin LEM O 10881 A
2
BNC ca ble P 5 0
Ω
8120-1840 or equivalent
Laser Br ea kou t
Box
P Differential Input to Single
Output
05517-60033
* P = Performance Tests; A = Adjustments
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