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Coherent StingRay Operator’s Manual

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Operating

Environment

Coherent StingRay lasers are suitable for regular indoor and outdoor

use and function normally when the following environmental condi-

tions are met:

• Altitudes up to 2000 m.

• Environments where the maximum relative humidity (RH) is

80% (for temperatures up to 31°C). Note that above 31°C, the

RH decreases linearly from 80 to 50% (at 50°C).

• Environments in which the diode is soaked –10 to 50°C. In

warmer environments, a heatsink or a thermoelectric cooler

should be used to minimize the heat build-up. In extremely

cold environments, care should be taken to maintain the laser

above –10°C at all times.

NOTICE!

As with all semiconductor materials, avoid prolonged or

repeated exposure to electrostatic charges or water droplets. All

Coherent StingRay lasers are designed with ESD protection.

Operate the laser in an environment in which there is normal aera-

tion.

Table 2-4. Modulation Characteristics and States

Modulation F

max

Direct Indirect

Analog 500 KHz

0 to 0.5 VDC 4.5 to 5 VDC

OFF

0.5 to 5 VDC 0 to 4.5 VDC

LINEAR REGION

TTL 100 KHz

0 to 1 VDC 4 to 5 VDC

OFF

4 to 5 VDC 0 to 1 VDC

1 to 4 VDC 1 to 4 VDC

UNDEFINED

Fast TTL 2 MHz

0 to 1 VDC 4 to 5 VDC

OFF

4 to 5 VDC 0 to 1 VDC

1 to 4 VDC 1 to 4 VDC

UNDEFINED

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 57 58

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