LST500

Features
Optical Power Handling: 100 W
High Rep Rate: 15 Hz
Aperture: 15 mm
High LIDT: 2 J/cm2
Optics: Metal & Dielectric
$995.00
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LST500 Laser Shutter

Applications
Laser Safety
High Energy Pulse Gating
Rep-Rate Divider
Large Beam Application
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Optical Specifications


Aperture Diameter 15 mm
Typical Beam Diameter 1 – 12 mm
Maximum Optical Power Handling 100 W (Dielectric Optics)
(+50 W Requires Water Cooling),
30 W (Gold and Al Optics)
Optics Options Gold, Aluminum, or Dielectric
Dielectric Optics Suffix -1 (1064nm), -2 (532 nm), -3 (355 nm)
Metal Optics Suffix CO2 (-C2), STD (-AL)
Laser Induced Damage Threshold 2 J/cm2 at 10 ns (Dielectric Optics)
500 mJ/cm2 at 10 ns (Gold/Al Optics)

Performance Specifications


Open Delay Time 10 ms
Open Rise Time 20 ms
Open Total Time 30 ms
Close Delay Time 10 ms
Close Fall Time 20 ms
Close Total Time 30 ms
Min. FWHM Exposure 50 ms
Max. Shutter Repetition Rate 10 Hz (Custom – 15 Hz)
Lifetime Over 100 Million Cycles

Thermal Specifications


Thermal Power Dissipation Holding Open 5 W
Thermal Power Dissipation, Cycling 16 W @ 10 Hz
Max. Operating Temperature 50 C
Mounting Surface Datum A, Datum B

Custom Options


Optics Options Gold, Aluminum, or Dielectric
Dual Position Sensors Available
Custom Repetition Rate Up to 15 Hz
Diverting Port to Power Meter Available

Electrical Specifications


Power Supply 24 VDC, 2 AMP RATING
Electrical Drive Circuit Boost Open = 24 V for 30 ms
Hold Open = 8 V
Delay Close = 17 ms
Brake Close = 24 V for 6 ms
Recommended Controller CX4000B
Winding Resistance 11 ohms @ Room Temp.
Winding Inductance 25 mH
Position Sensors Logic TTL, Require 5 VDC @ 30 mA
Cable/Wire Type, No., Length,
Termination
26 g Teflon, six wires, 18 in.,
MTA-100

Wire Pin # - Color


1 – White Power Winding (+)
2 – Black Power Winding (-)
3 – Red Sensor Supply, 5 V DC(+) – 30 mA
4 – Yellow Normally Open Sensor (HI – Open)
5 – Orange Normally Closed Sensor (HI – Close)
6 – Blue 5 V Return and Sensor Ground

Attributes


Dimensions 5.5 in. x 0.97 in. x 2.0 in.
Weight ~1 lb.
Classification Safety/Process
Gravity Considerations None
Specifications Date March 27, 2023

Description


The LST500 laser shutter model is designed for use as a laser safety interlock and processing applications. The shutter provides TTL output position sensors for the open and closed states as standard equipment. Compatible system controllers are CX4000B or user-built circuits designed around 24 VDC @ 2 A. Options are available using a suffix code system. Many options cannot be installed after manufacture, so choose carefully. Choose the –C2 suffix for CO2 laser use (see LST500-C2). Choose the –IR suffix IR use, starting at about 700 nm. The standard over-coated aluminum mirror is good from deep UV to about 700 nm (see LST500-AL). Special dielectric mirrors are available for OEM applications. Use suffix –1 for 1064 nm, -2 for 532 nm, -3 for 355 nm, -4 for 266 nm, and -123 for 355 + 532 + 1064 nm harmonic mirror (for lower damage threshold, see LST500-123; for high pulsed laser see LST500-123-HP). See the Mechanical Drawing for dimensions. Also see the Application Notes in the Technical Information menu for important operational issues including: thermal mounting, user-built circuits, polarization, lifetime, jitter, vacuum operation, and contamination.