Laser solutions           
for your world

Beam Deflection/Gating Shutter Assemblies Low Power Beam Dump Shutter Assemblies These compact beam deflection shutters are designed to be used extracavity to deflect or redirect laser beams up to 12mm diameter into a suitable absorber or power detector. The model 1031-1 is supplied with a gold plated copper shutter flag that reflects >95% at wavelengths .7 to 20 microns. This flag is mounted at 45° to deflect the beam downward into an absorber or power detector. Model 1031-2 dump shutters are supplied with a dielectrically coated dichroic mirror designed to fully reflect 1.06 and .532 microns. To check the availability of mirrors coated at other wavelengths, contact the U.S. Laser Corp sales dept. Beam deflection shutters are supplied on a U.S. Laser carriage mount. For plate mounting instead of carriage mount, add "-P" to P/N. Typical transition times for these shutters are ≈10ms to open and ≈10ms to close when driven with the U.S. Laser Corp shutter drive electronics. N1031-2 shown with cover removed N1031-1-B N1031-2-B-P plate mounted version

Moderate/High Power Beam Dump Shutters This heavy duty series of beam dump shutters is designed for use with high power continuous and pulsed lasers in the range of 100 watts to <1 KW and beam diameters up to 20mm. Functionally, the beam dump shutter is placed extracavity, in the beam path . When the shutter is de-activated, the incoming laser beam is deflected 90°. When voltage is applied to the solenoid, it rotates the mirror out of the beam path, fully transmitting the incoming laser beam. To accommodate a range of applications, the reflector mirror is available in three different configurations, each of which will easily accommodate beam diameters of up to 20 mm.. A gold plated copper arm is available for use at lower power levels. This mirror has a reflectivity of > 95% at wavelengths from .7 to 20 microns, and is a lower cost alternative to dielectrically coated mirrors. The second version uses a highly damage resistant dielectrically coated fused silica mirror, and is coated to reflect >99% of the incident 1064 nm beam. The third version uses the same dielectrically coated mirror, with the addition of an optical filter designed to transmit visible light while blocking any 1064 nm laser light leakage. This version is designed to be used with high power 1064 nm lasers which are equipped with integral visible spotting lasers. For pricing and availability of dielectrically coated mirrors for use at wavelengths other than 1064 nm, please consult our sales department. The shutter mirror is actuated by a heavy duty 24 volt DC solenoid, and is equipped with an emission light, and a shutter position interlock switch. The deflected beam is designed to be absorbed by either a continuous duty water cooled absorber (see part no 1039), or a high power detector assembly (see part no 1036), both of which are listed in the power meter section of this catalog, and are sold separately. Related Products: Power Meters Plate Mounted Dump Shutter Version Carriage Mounted Dump Shutter Version

High Power Beam Dump Shutter with Absorber

Specifically designed for use with high power C.W. Nd:YAG lasers operating at 1 KW and above, they provide an efficient way of extracavity shuttering the beam and deflecting it into an absorber designed to fully dissipate the power. The beam is deflected by a highly damage resistant dielectrically coated fused silica mirror which is designed to reflect >99.5% of the incident 1064 nm beam. The mirror is actuated by a heavy duty 24 volt D.C. solenoid. In operation, with no power applied, the incoming laser beam is deflected into the highly efficient water cooled absorber. When power is applied , the shutter mirror reacts, activating a shutter position switch, and allowing the beam to pass through unrestricted. The high power dump shutter can accommodate beams up to 19 mm diameter, and requires a minimum of 3 g.p.m. of tap or chiller water for cooling. For further details, contact U.S. Laser sales department.

SAFETY SHUTTER/DUMP SHUTTER POWER SUPPLY CONTROLLER:

This power supply controller provides power and an activation interface to control USL safety shutters and dump shutters. Control can be accomplished either by a TTL computer interface or manually via front panel switch or external contact closure. The power supply operates off of 115 VAC with a 3 prong grounded plug. An overseas version is available with 220 VAC and a European plug. Both models operate at either 50 or 60 Hz. The controller output is 24 V DC to the shutter but has a higher voltage shaped turn-on pulse to increase the shutter activation speed, which is nominally 20 to 80 milliseconds depending on the type of shutter being driven. Shutter cable is included with power supply controller ( N8022-1, -2, -3 and -4)

BEAM DUMP ABSORBERS:

Beam dumps are used to absorb the power emitted by lasers. Two types are available, air cooled, for use with lower powered lasers, and water cooled, for use with higher powered lasers at higher duty cycles. When used with a switching or deflecting device, these absorbers can be a very effective extracavity shutter mechanism (also called a dump shutter). Beam dumps can also be used in the lab as an absorber when performing beam diagnostics. The model 1039-1 and -2 absorbers are recommended to be used with the model 1031-1 beam dump shutters. The model 1039-3 and -4 absorbers are recommended to be used with the model 1031-3 thru 1031-5 beam dump shutters. Our sales department would be happy to assist in selecting the correct absorber/shutter combination.

High Power Beam Dump Absorber:

Very high power continuous duty, water cooled beam dump absorber designed for use with laser up to 2000 watts. Maximum entry beam diameter is 19 mm. Absorber assembly is 9" high x 3" wide, and 5" deep, and comes equipped with a mounting base for use vertically. It requires 3-5 GPM of coolant water. For a complete assembly with dump shutter and absorber, see part number 1031-6 in the beam dump shutter section of this catalog.