4

AIR-COOLED ARGON ION LASER HEADS IN CYLINDRICAL AND

RECTANGULAR PACKAGES

Specifications

Parameter

2218-0xxMLS/2219-0xxMLS

2218-0xxSLS/2219-0xxSLS

Optical

25 mW

10/20/30 mW

Wavelength

458 to 514 nm

488 nm

>95%

>95%

0.70

0.69

Beam divergence (mrad ±5%)

0.90

0.95

Minimum polarization ratio

250:1

566

Noise

p-p, 20 Hz to 2 kHz

≤0.1%

p-p, 20 Hz to 20 kHz

≤1.0%

rms, 20 Hz 2 MHz

≤1.0%

Maximum drift (light control mode over 2 hours)

≤1.0%

Maximum warm-up time

5 minutes

Beam pointing stability after warm-up (2 hours, 25±3 °C)

<30 µRad

CDRH class

3a

Static alignment

Beam position

±0.25 mm

Beam angle

±2.5 mrad

Environmental

Temperature

Operating

4 to 40 °C

Non-operating

30 to 60 °C

Altitude

Operating

0 to 10,000 feet

Non-operating

0 to 70,000 feet

Relative humidity (non-condensing)

Operating

0 to 90%

Non-operating

0 to 100%

Shock

Operating

25 g for 11 ms

Non-operating

25 g for 11 ms

Physical

Weight

14 lbs.

Umbilical length

72±2 inches

Note: Nominal airflow is 52 CFM. Use Dayton model 4C442 or equivalent fan rated for 140 CFM free air and typical pressure head of 0.95 inches of water.