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Cage System Laser Diode Mount Kits![]()
Application Idea LDH9-P2 with M9 x 0.5- 3/16"-100 Adjuster LDH9-P2 CP1LD9 CP1M09 ER1.5 ER1.5 S1TM09 CP04 CP02 LDH3-P1 ![]() Please Wait Features
Ø5.6 mm and Ø9 mm TO Can Kits TO-3 Can Kit Laser Diode Temperature Warning
Cage System OverviewThe Cage Assembly System provides a convenient way to construct large optomechanical systems with an established line of precision-machined building blocks designed for high flexibility and accurate alignment. 16 mm, 30 mm, and 60 mm Cage System StandardsThorlabs offers three standards defined by the center-to-center spacing of the cage assembly rods (see image below). The 16 mm cage, 30 mm cage, and 60 mm cage standards are designed to accomodate Ø1/2", Ø1", and Ø2" optics, respectively. Specialized cage plates that allow smaller optics to be directly inserted into our larger cage systems are also available. Standard ThreadsThe flexibility of our Cage Assembly System stems from well-defined mounting and thread standards designed to directly interface with a wide range of specialized products. The three most prevalent thread standards are our SM05 Series (0.535"-40 thread), SM1 Series (1.035"-40 thread), and SM2 Series (2.035"-40 thread), all of which were defined to house the industry's most common optic sizes. Essential building blocks, such as our popular lens tubes, directly interface to these standards. ![]() An example of the standard cage plate measurements determining cage system compatibility.
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The LDH56-P2(/M) and LDH9-P2(/M) Collimation Mount Kits are 30 mm cage system assemblies that hold a user-provided Ø5.6 mm or Ø9 mm TO can laser diode and a user-provided M9 x 0.5-threaded aspheric lens. Each kit includes a cage plate for mounting either a Ø5.6 mm or Ø9 mm laser diode, as well as an M9-threaded cage plate for holding the aspheric lens; see the table to the right for the components list. Precision mounting of the lens and laser diode without the use of adapters ensures maximum centration for good beam quality and alignment to the cage system. The distance between the laser diode and lens can be precisely set using a 3/16"-100 adjuster which has a 5/64" (2.0 mm) hex (Item # F19SS075). The laser diode is secured with a retaining ring that can be tightened using a spanner wrench. The Ø5.6 mm mount is compatible with our SPW801 spanner wrench only, while the Ø9 mm kit is compatible with the SPW301 and SPW801 spanner wrenches. To align the laser chip axis to the cage system, access ports on the front of the mount allow rotation of the laser diode using tweezers prior to fully threading the retaining ring (see photo to the lower right). After the laser diode is mounted, a strain relief cable can be screwed into the back of the cage plate for electrical connections. This collimation mount can be integrated into a 30 mm cage system by threading the ER1.5 cage rods onto a longer cage section or by mounting the two cage plates directly onto a longer cage section. Individual components are also available below, including cage plates that hold unmounted optics or aspheric lenses with housings based on other thread standards. The laser diode mount cage plates are also available separately below. ![]() Click to Enlarge The LDH9-P2 is compatible with M9-threaded aspheric lenses, Ø5.6 mm or Ø9 mm TO can laser diodes, and SR9 strain relief cables. Laser diodes are secured into the CP1LD56(/M) or CP1LD9(/M) cage plate mounts by tightening a retaining ring (left). Access holes (right) allow the laser diode to be rotated using tweezers and the notches in the laser's housing. ![]()
The LDH3-P1(/M) Collimation Mount holds a TO-3 laser diode and a M9 x 0.5-threaded aspheric lens. It uses an S1TM09 adapter and CP33 cage plate to mount the aspheric lens. Unlike the LDH56-P2 and LDH9-P2 collimation mounts described above, this mount does not feature a hex adjuster and only offers coarse positional adjustment of the laser diode and lens cage plates. Fine adjustment of an aspheric collimating lens relative to the laser diode package can be accomplished by rotating the S1TM09 lens adapter. The LDH3-P1 can be mounted directly onto any heat sink that is designed to accept TO-3 laser packages. This collimation mount can be integrated into a 30 mm cage system by threading the ER1.5 cage rods onto a longer cage section or by mounting the two cage plates directly onto a longer cage section. Individual components are also available below, including cage plates that hold unmounted optics or aspheric lenses with housings based on other thread standards. The laser diode mount cage plates are also available separately below. ![]()
Individual cage plates for mounting Ø5.6 mm TO can, Ø9 mm TO can, or TO-3 laser diodes are available here. Cage plates for mounting M6, M8, M9, M10, and M12-threaded aspheric lenses and unmounted optics are available below. Each cage plate has four through holes that accept Ø6 mm cage rods; the rods can be secured in the plate by tightening M4 x 0.7 side-located locking setscrews [5/64" (2 mm) hex]. ![]()
These cage plates are ideal for mounting aspheric or small achromatic lenses in a 30 mm cage system without the use of adapters. They are available with M6, M8, M10, or M12 internal threads. Alternatively, aspheric lenses can be mounted within a cage system using our aspheric lens adapters and a standard SM1-threaded cage plate. Each cage plate has four through holes that accept Ø6 mm cage rods; the rods can be secured in the plate by tightening M4 x 0.7 side-located locking setscrews [5/64" (2 mm) hex]. For unmounted optics, please see the cage plates for unmounted optics up to Ø20 mm sold below.
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These cage plates are designed for mounting optics that have a diameter up to 20 mm, such as our unmounted aspheric and achromatic lenses, into a 30 mm cage system. They have M5.5, M6.5, M8.5, M9.5, M15.5, 0.750"-40, or M20.5 internal threads and include two retaining rings of the appropriate size to secure the optic. The SPW801 spanner wrench is recommended when threading the retaining rings into place. Each cage plate has four through holes that accept Ø6 mm cage rods; the rods can be secured in the plate by tightening M4 x 0.7 side-located locking setscrews [5/64" (2 mm) hex].
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