HeNe FiberPort and Threading Adapters

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Figure G1.1  SM05AHN Adapter Connects SM05 Lens Tube to HeNe

• Effectively Adds External SM05 (0.535"-40) Threading to HeNe Output Port
• Attaches to Lasers That Have Industry-Standard, 1" square, 4-40 or M3 Four-Bolt Patterns
• Includes Four 4-40 Cap Screws

The SM05AHN Adapter allows SM05-threaded components to be attached directly to the front of a standard cylindrical HeNe laser (mechanical drawing shown in Figure G1.2). It contains four counterbored slots that fit industry-standard, 4-40 and M3 four-bolt patterns. This adapter is ideal for enclosing a HeNe beam path using SM05 Lens Tubes.

Figure G1.2  Standard Cylindrical HeNe Mechanical Drawing

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Figure 406A  HCL Adapter Mounts FiberPort to HeNe Laser
Mounting Details

• Attaches to Lasers That Have Industry-Standard, 4-40 or M3 Four-Bolt Patterns
• Central Bore with C-Mount Threading
• Mounting Cap Screws with 4-40 and M3 Threading Included
• Four 2-56 Screws Included for Attaching a FiberPort

The HCL Adapter allows a FiberPort to be directly attached to the front of a standard cylindrical HeNe laser (mechanical drawing shown in Figure 406B). Equipped with a four-bolt pattern on 1" centers, the adapter comes with the necessary 4-40 and M3 cap screws for attaching it to the HeNe laser body, as well as the additional four cap screws needed to attach a FiberPort. The four-bolt pattern on the HCL accommodates both the M3-threaded Ø1.38" (Ø34.9 mm) and 4-40-threaded Ø1.47" (Ø36 mm) standards. For added mounting options, the HCL also has internal C-Mount (1.000"-32) threading, which is utilized on some lasers.

For cylindrical lasers, the 2.0 mm focal length PAF2-2A and 4.6 mm focal length PAF2-5A FiberPorts, which are compatible with the HCL, are recommended. For more information, please see the Selection Guide tab on our FiberPorts page.

Figure 406B  Standard Cylindrical HeNe Mechanical Drawing

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• External 5/8"-32 Threading is Compatible with Thorlabs' Self-Contained HeNe Lasers
• Front Counterbore has Internal SM05 (0.535"-40) Threading
• Outer Ring has External SM1 (1.035"-40) Threading

The SM1A32 Adapter allows externally SM05-threaded or internally SM1-threaded optomechanics to be attached to the output aperture of the HNLS008R(-EC) or HNLS008L(-EC) Self-Contained HeNe Lasers.

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Figure 410A  FiberPort Mounted onto a Self-Contained
HeNe Laser Using an HCL2 Adapter

• External 5/8"-32 Threading is Compatible with Thorlabs' Self-Contained HeNe Lasers
• 5/8"-32 External Threading
• Slip Plate Design for Coarse FiberPort Alignment

The HCL2 Adapter, which features external 5/8"-32 threading, allows a FiberPort coupler to be attached directly to the threaded aperture of our self-contained HeNe lasers or any other 5/8"-32 tapped hole. A slip-plate design allows the position of the FiberPort to be shifted and locked to maximize coupling efficiency. FiberPort mounting screws are included.