This high-speed laser shutter model is designed for use as a fast process laser shutter and quick reaction laser safety interlock. The inherent speed is achieved with minimum electrical power requirement. The LST200SLP is used routinely in application that operates 24/7/365, accumulating billions of cycles. It is our highest reliability product. Laser shutter controller choice affects switching speeds. The solid copper package efficiently manages thermal flow, delivering the heat to the mounting surfaces.
Compatible system controllers are CX4000B or user-built circuits designed around 24 VDC. Specifications are for use with a typical 24 V capacitor discharge or PWM circuit.
Special considerations for this model are primarily thermal mounting. The Output Aperture face is the ideal surface for high heat loads, and the bottom threaded surface for lower heat loads.
Restricted use for this model include close proximity to high magnetic fields and strict observance of optical power rating. Environments subjecting shutter to large size particles could inhibit shutter motion.
See the Mechanical Drawing tab 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. See the Product Matrix page to compare laser shutter models.
|Aperture Diameter||2.3 mm|
|Typical Beam Diameter used for Specs||1.0 mm|
|Maximum Shutter Repetition Rate =||100 Hz|
|CW and Quasi-CW Optical Power Handling||2 W Standard|
|Typical Damage Threshold, Aligned Polarization||30 mJ/cm2 (PW=10 ns)|
|Delay to Begin Opening after Command Open||2 ms|
|Opening Time Switching Speed||1 ms|
|Delay to Begin Closing after Command Close||1 ms|
|Closing Time Switching Speed||1 ms|
|Minimum FWHM Exposure Capability||2.5 ms|
|Thermal Power Dissipation Holding Open||4 W|
|Thermal Power Dissipation, Repetitive Cycling||10 W @ 50 Hz|
|Nominal Magnetic Winding Impedance||22 Ohms|
|Cable/Wire Type and Length||18 Inch twisted pair, 22 g.|
|Mounting Surface for Thermal Sinking||Output Face, Bottom|
|Position Sensors||Not Available|
|Size (see mechanical drawing)||2.10 x 1.35 x 0.38 Inches|
|Aperture Size Range||2.3mm to 3mm|
|Wire Length||2ft max|
|Wire/Cable Type Wire Gauge||Teflon, Vinyl|
|Connector||Any 2 pin connector|
|Size||2.10 x 1.35 x 0.38 in.|
Note: 3-D solid model available upon request (Solidworks or .stp file)
|Number of Wire Leads, Std.||Two, 22 g|
|Cable or Wires – Length||18 inches|
|Recommended Controller and Voltage Present||Capacitor Discharge 24 V, 24 V PWM, or our controllers|
|Shutter Winding Resistance||22 Ohms Nominal|
|Typical Minimum Hold Open Voltage, Room Temperature||10 V|
|Typical Hold Open Power Dissipation as Heat||4 W|
|User Power Supply Notes||24 V, 1A Rating|
|User Drive Circuit/Cap Discharge||24 V, C=330 mmF, R=25 ohm, use 1N4001 Flyback diode, and 15-36 V Zener|
|Nominal Winding Inductance||10 mH|
|User Drive Circuit/PWM Type||24 V for 5 ms, then drop to 10 V hold, use above described flyback arrangement.|