DIAMOND™ C-20 and C-30 Liquid-Cooled Laser Operator’s Manual
1 - 2
Specifications
and Input
Requirements
Table 1-2 on page 1-5 and Table 1-3 on page 1-6 provides specifica-
tions and requirements for cooling water and power inputs for the
DIAMOND C-20 and C-30 lasers.
Figure 1-1 illustrates the baseline configurations (i.e., without any
optional hardware additions or deletions) of the DIAMOND C-20
and C-30 lasers. Each laser system consists of a laser head assembly
and an integrated radio frequency (RF) power supply. The RF power
module converts 48 VDC, ≤ 12 A power to radio frequency power.
Connection of the customer-supplied DC power supply to the
DIAMOND C-20 and C-30 is via a barrier strip with screw terminals
on the RF power module. These terminals should also be used for the
connection of wires for remote voltage sensing. Such sensing is
recommended to control the voltage at the input to the RF power
module more precisely.
Hardware
Overview
The DIAMOND C-20 and C-30 lasers are a waveguide, carbon
dioxide (CO
2
) lasers. RF electric fields provided by the RF power
module excite the CO
2
gas mixture. The standard configuration of
these lasers operates at a wavelength near 10.6 µm in the infrared
region of the electromagnetic spectrum, while additional models
operate at 9.3 µm or 10.2 µm. Refer to the Identification Label,
shown in Figure 2-4 on page 2-8, to determine the specific model
and wavelength of the laser head.
DC Input Power
DC input power is provided by the user through customer-supplied
bus wiring, which goes to the RF power module. The RF power
module converts this DC electrical power into RF power, which is
used to excite the gas in the laser head. The DC power supply
requirements are discussed in detail in the subsection entitled “DC
Power Supply Requirements” on page 3-10.
Cooling
Requirements
Total heat dissipation for the laser is specified in Table 1-2 and
Table 1-3. The laser head typically dissipates 325 W from its base
surface while the RF power module typically dissipates 175 W for a
total typical heat dissipation of 500 W (maximum total heat
dissipation is < 575 W). The DIAMOND C-20 and C-30 must be
provided adequate cooling to keep the laser’s operating temperature
within acceptable limits. The cooling method that is used must not
induce stresses that will result in misalignment of the laser resonator.
The DIAMOND C-20 and C-30 heat sinks are designed so that the
assembled structure remains free of excessive stress.
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