User`s guide
Cleaning Procedures for Lightwave Test and Measurement Equipment General Cleaning Procedure
264 Agilent 81600B Tunable Laser Source Family, Fourth Edition
How to clean metal filters or attenuating 
mesh filters
This kind of device is extremely fragile. A misalignment of the filter leads to 
inaccurate measurements. Never touch the surface of the metal filter or 
attenuating mesh filter.
Be very careful when using or cleaning these devices. Do not use cotton 
swabs or soft tissues, as there is the danger that you cannot remove the 
lint and that the device will be destroyed by becoming mechanically 
distorted.
Preferred Procedure
Use the following procedure on most occasions.
• Use compressed air at a distance and with low pressure to remove any 
dust or lint.
Procedure for Stubborn Dirt
Do not use an ultrasonic bath as this can damage your device. Use this 
procedure when there is greasy dirt on the device.
1 Put the optical device into a bath of isopropyl alcohol, and wait at least 
10 minutes.
2 Remove the fluid using compressed air at some distance and with low 
pressure. If there are any streaks or drying stains on the surface, repeat 
the whole cleaning procedure.










