HomeProductsOptomechanicsOptomechanical DevicesSingle-Blade Optical Beam Shutter and Controller
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Single-Blade Optical Beam Shutter and Controller

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Optical Beam Shutter




  • Ø1/2" and Ø1" Beam Shutters
  • Two Controller Options Available
  • Interlock Mode Incorporated into Control Logic

Ø1/2" Optical Beam Shutter

 

  • Default Position: Closed
  • Close Activation Time: <1.5 ms
  • Compatible with SM05 Lens Tubes
  • Laser Safety Applications
  • Passive Closure Mechanism
  • Includes 10-Foot-Long Cable for Connection to Controller

The SH05 Optical Beam Shutter utilizes a rotary, electro-mechanical actuator to provide millisecond shutter operation. During operation, the shutter remains in a closed position and then opens when a pulse control signal is applied. As long as the control voltage to the optical shutter remains high, the shutter stays open, but as soon as the voltage goes low, the shutter closes, providing inherent "fail-safe" operation. The rate at which the device is opened can be controlled. An optical sensor, which detects the shutter blade position in the housing, provides information that confirms the state of the optical shutter position. This makes it ideal in applications where a laser safety lockout is required.

In order to ensure long lifetime of your optical beam shutter, the aperture should not be located near the focus of a laser beam. Please note that the solenoid's performance is not guaranteed if the case temperature exceeds 50 °C. Significant heat buildup will occur if the aperture is closed for a long time while a high-power laser is incident on the shutter.

Both sides of the aperture of the SH05 are internally SM05 (0.535"-40) threaded to easily interface with all of our SM05 lens tubes. For post mounting, the SH05 has three M6 x 0.5 tapped holes. To enable compatibility with our imperial and metric Ø1/2" posts, three adapters are provided to convert the internal M6 threading to internal 8-32 and three more allow for conversion to internal M4.

Thorlabs offers two compatible controllers for use with the SH05: the SC10 Shutter Controller and the TSC001 T-Cube Flipper/Shutter Controller. Both include an "interlock mode" that is incorporated into the controller's logic as described in the controller presentations below. A 10-foot-long cable with 6-way HRS connector is included for connecting the shutter to either the SC10 or TSC001 Shutter Controller presented below. The SH05 can also be used with a third-party controller.

 


Ø1" Optical Beam Shutter

 

  • Default Position: Closed
  • Close Activation Time:
  • Compatible with 30 mm Cage System and SM1 Lens Tubes
  • Ideal for Laser Safety Applications
  • Includes 10-Foot-Long Cable for Connection to Controller

The SH1 Optical Beam Shutter utilizes a rotary, electro-mechanical actuator to provide millisecond shutter operation. During operation, the optical shutter remains in a closed position and then opens when a pulse control signal is applied. As long as the control voltage to the shutter remains high, the shutter stays open, but as soon as the voltage goes low, the optical shutter closes, providing inherent "fail-safe" operation. The rate at which the shutter opens can be controlled. An optical sensor, which detects the shutter blade position in the housing, provides information that confirms the state of the shutter position. This makes it ideal in applications where a laser safety lockout is required.

In order to ensure long lifetime of your optical beam shutter, the aperture should not be located near the focus of a laser beam. Please note that the solenoid's performance is not guaranteed if the case temperature exceeds 50 °C. Significant heat buildup will occur if the aperture is closed for a long time while a high-power laser is incident on the shutter.

Both sides of the aperture of the SH1 are internally SM1 (1.035"-40) threaded to easily interface with all of our SM1 lens tubes. In addition, the aperture is surrounded by four, 4-40 holes on both sides for compatibility with our 30 mm cage system. For Ø1/2" post mounting, the SH1 has four 8-32 tapped holes. The SH1/M features M4 tapped holes for compatibility with metric Ø1/2" posts.

Thorlabs offers two compatible controllers for the SH1; both include an "interlock mode" that is incorporated into the controller's logic; for details, please see the controller presentations below. A 10-foot-long cable with 6-way HRS connector is included for connecting the shutter to either the SC10 or TSC001 Shutter Controller presented below. The SH1 can also be used with a third-party controller. 

This shutter features a single blade that slides across the aperture. Additionally, Thorlabs offers a Ø1" diaphragm shutter and controller, which has five stainless steel blades that open from the center.

 


Shutter Controller

 

  • Local Operation or Remote Control via LabVIEW, LabWindows or BNC
  • Programmable with Repeating Open/Close Sequences at Millisecond Intervals
  • LCD Front Panel with Dedicated Shutter Status Indicators
  • Safety Alarm When Coupled with SH05 and SH1 Beam Shutter
  • Keyswitch Provides Additional Safety

Thorlabs' SC10 Shutter Controller provides an easy-to-use control interface for our SH05 and SH1 Beam Shutters. The shutter can be controlled by hand using the buttons on the front of the unit, and the back includes a BNC input for external triggering, a BNC output for synchronization with other equipment, and an RS-232 port for remote computer control. Dedicated lights on the front panel reveal if the shutter is enabled and if the shutter is open. It also features a keyswitch that enables opening of the shutter, helping to comply with lab laser safety requirements. In addition, it incorporates a safety interlock that overrides all system commands and closes the shutter. If the interlock is tripped, the keyswitch must be cycled to resume operations.

The easy-to-read LCD front panel provides access to the same commands as the included LabVIEW and LabWindows software packages. In addition to simply opening or closing the shutter, a repeating sequence of open and close events with on and off times as short as 1 ms can be set up and initiated either by a front panel button, a TTL pulse (+5 V), or a computer command via RS-232. Alternatively, the shutter can be synchronized to follow the rising and falling edges of an external voltage supplied over BNC.

The shutter controller includes LabVIEW VI's suitable for integrating into existing LabVIEW applications. A standalone executable written in LabWindows/CVI is also provided, allowing remote computer control of the SC10 without any additional programming. See the Software tab to download these packages.

The shutter controller's BNC output allows it to double as a standalone digital delay generator with 1 ms resolution and 0.1 ms accuracy.

In October 2012, the firmware of the SC10 was updated to address compatibility issues with our SH1 Shutter.

 


T-Cube Shutter Controller

 

  • Local Operation or Remote Control via USB or SMA
  • Programmable with Repeating Open/Close Sequences
  • Dedicated Shutter Status Light
  • Keyswitch Provides Additional Safety

Thorlabs' TSC001 T-Cube Shutter Controller is a compact [2.37" x 2.37" x 1.87" (60.3 mm x 60.3 mm x 47.5 mm)] controller that is designed for use with our SH05 and SH1 Beam Shutters. A button on top of the unit allows the shutter to be controlled by hand, and an indicator light shows if the shutter is open or closed. The sides include an SMA input for external triggering, an SMA output for synchronization with other T-Cubes and equipment, and a mini-USB connector for remote computer control. The shutter controller features a keyswitch that enables opening of the shutter, helping to comply with laser lab safety requirements. In addition, it incorporates an interlock circuit for integration with external laser safety systems.

The SMA input on the unit, which accepts TTL pulses (+5 V), can be used to toggle the shutter. In addition, a standalone Windows executable is included, providing manual control and allowing a repeating sequence of open and close events with on and off times as short as 100 ms to be set up and initiated without additional programming. ActiveX libraries for home-built software solutions are also available.

The base of the shutter controller contains an 1/4" (M6) clearance slot that permits direct mounting to an optical table or breadboard. For more information on the controller and the included software, please visit our TSC001 page.

 


6-Pin, Hirose Cable

 

  • 6-Pin, Male-to-Male Hirose Connector Cable
  • Compatible with Several Thorlabs Products
    • TC200 Temperature Controller
    • SC10 Shutter Controller
    • SH05 Beam Shutter, Ø1/2" Aperture
    • SH1 Beam Shutter, Ø1" Aperture
  • Cut Cable to Expose Wires for Custom Applications

The TC200CAB10 is a 10-foot-long, 6-pin, male-to-male Hirose connector cable that is compatible with our TC200 temperature controller, SH05 and SH1 beam shutters, and SC10 shutter controller. The wires in this cable cross as seen in the drawing to the right. This is not a straight-through cable.

This Hirose connector cable can also be cut to any length leaving one connectorized end and one bare end. The colored wire diagram to the right shows the relationship between the six colored wires and the pins in the connector, allowing the cut cable to be incorporated into a variety of custom applications.

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