Mode Section; Mode Select; Ttl Output; Output Function - ILX Lightwave MPS-8033 Series User Manual

L O C A L O P E R A T I O N
2
C H A P T E R
Introduction to the MPS-8033 Front Panel

MODE Section

When the CW switch is pressed the CW LED illuminates indicating the internal modulation function
is disabled and a continuous wave output is enabled.
The first execution of the INT MODULATION switch will return the modulation to the last selected
modulation frequency. Subsequent executions of the INT MODULATION switch will sequentially
select between modulation frequencies.
The MODE switches select between either continuous wave or internally modulated optical outputs.
The internally modulated output is a square wave pulse with a 50% duty cycle at one of three
frequencies; 270, 1000, and 2000 Hertz.

MODE SELECT

The CW switch is used to select Continuous Wave operation. When CW mode is selected, the
corresponding LED becomes lit and all modulation is disabled.
To switch from CW to pulse modulation, the INT MODULATION switch must be pressed. The first
execution of the INT MODULATION switch will return modulation to the last selected frequency.
Subsequent executions of the INT MODULATION switch will sequentially cycle through the
available modulation frequencies.

TTL Output

The rear panel TTL output is an electrical equivalent to the front panel modulated optical output.

OUTPUT Function

When the ON switch is pressed, the output on indicator flashes for two seconds before the laser is
enabled. Following the delay, the output on indicator fully illuminates and the display switches to the
actual measured output power.
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! MPS-8033
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Continuous
Wave Output
LED
Internal Pulse
Modulation
Frequencies

Figure 2.2 Mode Section

CW Switch
INT Modulation
Switch