1
Getting Started
This chapter gives you the necessary information to begin using the
SR475 and SR476 Laser Shutters.
In This Chapter
1.1
Introduction to the Instrument . . . . . . . . . . . . . 1 – 2
1.1.1
Overview . . . . . . . . . . . . . . . . . . . . . 1 – 2
1.1.2
Design and theory of operation . . . . . . . . . 1 – 2
1.1.3
Mechanical performance . . . . . . . . . . . . . 1 – 3
1.1.4
Power-o
ff
and standby states . . . . . . . . . . 1 – 4
1.1.5
Power-on state . . . . . . . . . . . . . . . . . . 1 – 6
1.1.6
Resetting the shutter head . . . . . . . . . . . . 1 – 6
1.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 6
1.2.1
Vibration considerations . . . . . . . . . . . . . 1 – 6
1.2.2
Thermal considerations . . . . . . . . . . . . . 1 – 7
1.2.3
Grounding considerations . . . . . . . . . . . . 1 – 8
1.3
Optical alignment . . . . . . . . . . . . . . . . . . . . 1 – 8
1.4
Optical power capacity . . . . . . . . . . . . . . . . . 1 – 9
1.5
Operating environment . . . . . . . . . . . . . . . . . 1 – 9
1.5.1
Dust . . . . . . . . . . . . . . . . . . . . . . . . 1 – 9
1.5.2
Magnetic field . . . . . . . . . . . . . . . . . . . 1 – 10
1.5.3
Temperature . . . . . . . . . . . . . . . . . . . . 1 – 10
1.5.4
Vacuum . . . . . . . . . . . . . . . . . . . . . . 1 – 10
1.5.5
Oxygen-rich environments . . . . . . . . . . . 1 – 10
1.6
Alternate speed modes . . . . . . . . . . . . . . . . . . 1 – 10
1.7
Shutter interface connector . . . . . . . . . . . . . . . 1 – 12
1.7.1
Direct interfacing . . . . . . . . . . . . . . . . . 1 – 12
1 – 1