Cage System Laser Diode Mount Kits


  • Compatible with Ø5.6 mm TO Can, Ø9 mm TO Can, or TO-3 Laser Diodes
  • 100 TPI Adjusters for Precise Collimation
  • Kits Include All Parts as Shown Below

Application Idea

LDH9-P2 with M9 x 0.5-
Threaded Aspheric Lenses and SR9 Strain Relief Cable

3/16"-100 Adjuster

LDH9-P2

CP1LD9

CP1M09

ER1.5

ER1.5

S1TM09

CP49

CP33

LDH3-P1

Related Items


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Features

  • Collimation Mounts for Ø5.6 mm TO Can, Ø9 mm TO Can, or TO-3 Laser Diodes
  • Compatible with Mounted Aspheric Lenses
  • TO-56 and TO-9 Mounts have 100 TPI Adjusters for Precise Collimation Adjustment
  • Kits Ship Preassembled
  • Individual Components are Also Available Below

Ø5.6 mm and Ø9 mm TO Can Kits
Each LDH56-P2(/M) or LDH9-P2(/M) Collimation Mount Kit includes cage plates for mounting either a Ø5.6 mm or Ø9 mm laser diode, an M9-threaded cage plate for holding a mounted aspheric lens, and four 1.5" long cage rods. 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 mount is compatible with our SR9 strain relief cables.

TO-3 Can Kit
The LDH3-P1(/M) Collimation Mount Kit holds a TO-3 laser diode and an M9 x 0.5-threaded aspheric lens. It uses an S1TM09 adapter and CP33(/M) cage plate to mount the aspheric lens and does not incorporate a hex adjuster. This kit includes four 1.5" long cage rods.

Laser Diode Temperature Warning
Please note that these laser diode cage plate mounts do not have any temperature regulation or temperature measurement capability, so we do not recommend using them with higher power laser diodes. Running a laser diode at a high operating temperature can significantly shorten its lifetime.

Cage System Overview

The 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 Standards

Thorlabs 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 accommodate 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 Threads

The 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.
Standard Cage System Measurements
Cage System 16 mm 30 mm 60 mm
Thread Series SM05 SM1 SM2
Rod to Rod Spacing 16 mm (0.63") 30 mm (1.18") 60 mm (2.36")
Total Length 25 mm (0.98") 41 mm (1.60") 71.1 mm (2.80")
Cage Components
Cage Rods 16 mm These rods are used to connect cage plates, optic mounts, and other components in the cage system. The SR Series Cage Rods are compatible with our 16 mm cage systems, while the 30 mm and 60 mm cage systems use ER Series Cage Rods.
30 mm
60 mm
Cage Plates 16 mm These serve as the basic building blocks for a cage system. They may have SM-threaded central bores, smooth bores sized for industry standard optics or to accommodate the outer profile of our SM Series Lens Tubes, or specialized bores for other components such as our FiberPorts.
30 mm
60 mm
Optic Mounts 16 mm Thorlabs offers fixed, kinematic, rotation, and translation mounts specifically designed for our Cage Systems.
30 mm
60 mm
Cage Cubes 16 mm These cubes are useful for housing larger optical components, such as prisms or mirrors, or optics that need to sit at an angle to the beam path, such as beamsplitters. Our cage cubes are available empty or with pre-mounted optics.
30 mm
60 mm
Replacement Setscrews Replacement setscrews are offered for our 16 mm (SS4B013, SS4B025, and SS4B038) and 30 mm (SS4MS5 and SS4MS4) cage systems products.
Post and Breadboard Mounts and Adapters Mounting options for cage systems can be found on our Cage System Construction pages. Cage Systems can be mounted either parallel or perpendicular to the table surface.
Size Adapters Cage System Size Adapters can be used to integrate components from different cage system and threading standards.
Specialized Components Thorlabs also produces specialized cage components, such as Filter Wheels, a HeNe Laser Mount, and a FiberPort Cage Plate Adapter, allowing a wide range of our products to be integrated into cage-mounted optical systems. Explore our Cage Systems Visual Navigation Guide to see the full range of Thorlabs' cage components.

Posted Comments:
Colin Marcus  (posted 2024-08-21 13:52:48.707)
Can I use the LDH56-P2 to mount a TO-46 diode?
jpolaris  (posted 2024-08-26 07:19:19.0)
Thank you for contacting Thorlabs. LDH56-P2 would not be compatible with TO-46 laser diodes. For TO-46 laser diodes, the diameter of the component of the housing that surrounds the emitter would be too large for the CP1LD56 cage plate. I have reached out to you directly with some drawings that illustrate this.
lovecrazydog  (posted 2014-06-17 11:35:09.197)
How much current/heat can be allowed for these products?
jlow  (posted 2014-07-29 03:57:57.0)
Response from Jeremy at Thorlabs: There's no temperature regulation for these mounts so it should be used for low-power LD only. The max. current would depend on the individual laser diode you are using.
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Collimation Mount Kit for Ø5.6 mm or Ø9 mm TO Can Laser Diodes

Kit Components
Item # Description Qty.
ER1.5 1.5" Long Cage Rod 4
LDH56-P2 Only
CP1M09 M9 x 0.5-Threaded Cage Plate 1
CP1LD56 Ø5.6 mm Laser Diode Cage Plate Mount 1
LDH56-P2/M Only
CP1TM09/Ma M9 x 0.5-Threaded Cage Plate 1
CP1LM56/Ma Ø5.6 mm Laser Diode Cage Plate Mount 1
LDH9-P2(/M) Only
CP1M09(/M) M9 x 0.5-Threaded Cage Plate 1
CP1LD9(/M) Ø9 mm Laser Diode Cage Plate Mount 1
  • The CP1M09/M cage plate can be used if a replacement for the CP1TM09/M cage plate is required. If a CP1LM56/M cage plate is required, a CP1LD56/M can be used as a replacement.
  • Complete Mounting Hardware (Laser Diode, Strain Relief Cable, and Aspheric Lens Not Included)
  • Kits for Mounting Ø5.6 mm or Ø9 mm Laser Diodes Available
  • M9 x 0.5-Threaded Cage Plate for Mounting Aspheric Lenses
  • 0.75" (19.1 mm) Long 100 TPI Fine Hex Adjuster for Lens Positioning
  • Kits Ship Preassembled

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.

Laser Diode Mount LDH9-P2
Click to Enlarge

The LDH9-P2(/M) 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.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
LDH56-P2 Support Documentation
LDH56-P230 mm Cage Plate Collimation Mount for Ø5.6 mm TO Can Laser Diodes and M9 x 0.5-Threaded Aspheric Lenses
$131.87
3-5 Days
LDH9-P2 Support Documentation
LDH9-P230 mm Cage Plate Collimation Mount for Ø9 mm TO Can Laser Diodes and M9 x 0.5-Threaded Aspheric Lenses
$131.87
3-5 Days
+1 Qty Docs Part Number - Metric Price Available
LDH56-P2/M Support Documentation
LDH56-P2/M30 mm Cage Plate Collimation Mount for Ø5.6 mm TO Can Laser Diodes and M9 x 0.5-Threaded Aspheric Lenses, Metric Post Tap
$131.87
3-5 Days
LDH9-P2/M Support Documentation
LDH9-P2/M30 mm Cage Plate Collimation Mount for Ø9 mm TO Can Laser Diodes and M9 x 0.5-Threaded Aspheric Lenses, Metric Post Tap
$131.87
3-5 Days
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Collimation Mount Kit for TO-3 Laser Diodes

LDH3-P1(/M) Kit Components
Item # Description Quantity
CP49a TO-3 Laser Diode Cage Plate Mount 1
CP33(/M) SM1-Threaded Cage Plate 1
S1TM09 M9 x 0.5 to SM1 Adapter 1
ER1.5 1.5" Long Cage Rod 4
  • The metric version of the CP49 is not available separately from Thorlabs, while the imperial version is available below.
  • Mount TO-3 Laser Diodes
  • M9 x 0.5-Threaded Lens Mount
  • Compatible with Standard Heat Sinks for TO-3 Laser Diodes
  • Kit Ships Preassembled

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(/M) cage plate to mount the aspheric lens. Unlike the LDH56-P2(/M) and LDH9-P2(/M) 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(/M) 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.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
LDH3-P1 Support Documentation
LDH3-P130 mm Cage Plate Collimation Mount for TO-3 Laser Diodes and M9 x 0.5-Threaded Aspheric Lenses
$153.24
3-5 Days
+1 Qty Docs Part Number - Metric Price Available
LDH3-P1/M Support Documentation
LDH3-P1/M30 mm Cage Plate Collimation Mount for TO-3 Laser Diodes and M9 x 0.5-Threaded Aspheric Lenses, Metric Post Tap
$153.24
3-5 Days
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Individual 30 mm Cage Plates for Laser Diodes

  • Cage Plates to Mount Ø5.6 mm, Ø9 mm, or TO-3 Laser Diodes
  • CP1LD56(/M) and CP1LD9(/M) Have 3/16"-100 Hex Adjusters for Fine Positioning (Item # F19SS075)
  • To Construct Kits Like Those Sold Above, Use:
    • One Cage Plate for Laser Diodes
    • One Cage Plate for Premounted Lenses (Sold Below)
    • Four ER1.5 Cage Rods

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].

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
CP1LD56 Support Documentation
CP1LD5630 mm Cage Plate Mount for Ø5.6 mm TO Can Laser Diodes
$56.43
3-5 Days
CP1LD9 Support Documentation
CP1LD930 mm Cage Plate Mount for Ø9 mm TO Can Laser Diodes
$56.43
3-5 Days
CP49 Support Documentation
CP4930 mm Cage Plate Mount for TO-3 Laser Diodes
$86.43
3-5 Days
+1 Qty Docs Part Number - Metric Price Available
CP1LD56/M Support Documentation
CP1LD56/M30 mm Cage Plate Mount for Ø5.6 mm TO Can Laser Diodes, Metric
$56.43
3-5 Days
CP1LD9/M Support Documentation
CP1LD9/M30 mm Cage Plate Mount for Ø9 mm TO Can Laser Diodes, Metric
$56.43
3-5 Days
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Individual 30 mm Cage Plates for Premounted Aspheric and Achromatic Lenses

  • Internal Threads Compatible with our Premounted Aspheric and Achromatic Lenses
  • 0.35" (8.9 mm) Thick Cage Plate
  • 8-32 (M4) Tap for Post Mounting
  • To Construct Kits Like Those Sold Above, Use:
    • One Cage Plate for Laser Diodes (Sold Above)
    • One Cage Plate for Premounted Lenses
    • Four ER1.5 Cage Rods

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.

Item # Internal Threads  Base Item # of Compatible Mounted Lenses Mount Thickness
CP1M06(/M) M6 x 0.5 A414TM, C140TME, C151TMD, C392TME, C430TME, C710TME Aspheric Lenses 0.35" (8.9 mm)
CP1M08(/M) M8 x 0.5 C021TME, C170TME, C350TMD, C390TME, C440TME, C660TME Aspheric Lenses
CP1M09(/M) M9 x 0.5 A110TM, A220TM, A230TM, A375TM, A390TM, A397TM, C036TME, C037TME,
C110TME, C220TME, C230TME, C260TMD, C280TME, C330TMD,
C340TMD, C560TME, C610TME, C775TMD Aspheric Lenses;
Ø5 mm, Ø6 mm, and Ø6.35 mm Mounted Achromatic Doublets
CP1M10(/M) M10 x 0.5 C028TME Aspheric Lenses
CP1M12(/M) M12 x 0.5 A240TM, C240TME Aspheric Lenses; Ø8 mm Mounted Achromatic Doublets
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
CP1M06 Support Documentation
CP1M0630 mm Cage Plate with M6 x 0.5 Internal Threads, 8-32 Tap
$42.88
3-5 Days
CP1M08 Support Documentation
CP1M0830 mm Cage Plate with M8 x 0.5 Internal Threads, 8-32 Tap
$42.88
3-5 Days
CP1M09 Support Documentation
CP1M0930 mm Cage Plate with M9 x 0.5 Internal Threads, 8-32 Tap
$42.88
3-5 Days
CP1M10 Support Documentation
CP1M1030 mm Cage Plate with M10 x 0.5 Internal Threads, 8-32 Tap
$42.88
3-5 Days
CP1M12 Support Documentation
CP1M1230 mm Cage Plate with M12 x 0.5 Internal Threads, 8-32 Tap
$42.88
3-5 Days
+1 Qty Docs Part Number - Metric Price Available
CP1M06/M Support Documentation
CP1M06/M30 mm Cage Plate with M6 x 0.5 Internal Threads, M4 Tap
$42.88
3-5 Days
CP1M08/M Support Documentation
CP1M08/M30 mm Cage Plate with M8 x 0.5 Internal Threads, M4 Tap
$42.88
3-5 Days
CP1M09/M Support Documentation
CP1M09/M30 mm Cage Plate with M9 x 0.5 Internal Threads, M4 Tap
$42.88
3-5 Days
CP1M10/M Support Documentation
CP1M10/M30 mm Cage Plate with M10 x 0.5 Internal Threads, M4 Tap
$42.88
3-5 Days
CP1M12/M Support Documentation
CP1M12/M30 mm Cage Plate with M12 x 0.5 Internal Threads, M4 Tap
$42.88
3-5 Days
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Individual 30 mm Cage Plates for Unmounted Optics from Ø5 mm to Ø20 mm

  • Mount Ø5 mm to Ø20 mm Optics
  • Ideal for Use with Unmounted Aspheric and Achromatic Lenses
  • Two Retaining Rings Included for Mounting Optic
  • Compatible with 30 mm Cage Systems
  • Not Post Mountable
  • These Cage Plates Can be Used in Place of the CP1Mxx Cage Plates when Constructing the Kits Sold Above

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].

Item # Optic
Diameter
CAa Optic Thickness (Max)b Internal Threads Retaining Ring Mount Thickness Spanner Wrench
CPN05 5 mm Ø0.15" (Ø3.8 mm) 0.09" (2.2 mm) M5.5 x 0.5 SM5RR 0.23" (5.7 mm) SPW205 or SPW801
CPN06 6 mm Ø0.19" (Ø4.8 mm) 0.11" (2.8 mm) M6.5 x 0.5 SM6RR 0.25" (6.4 mm) SPW206 or SPW801
CPN08 8 mm Ø0.27" (Ø6.9 mm) 0.16" (4.0 mm) M8.5 x 0.5 SM8RR 0.30" (7.6 mm) SPW208 or SPW801
CPN09 9 mm Ø0.31" (Ø7.9 mm) 0.16" (4.0 mm) M9.5 x 0.5 SM9RR 0.30" (7.6 mm) SPW209 or SPW801
CPN15 15 mm Ø0.50" (Ø12.7 mm) 0.21" (5.3 mm) M15.5 x 0.5 SM15RR 0.35" (8.9 mm) SPW801
CPN18 18 mm Ø0.62" (Ø15.7 mm) 0.24" (6.1 mm) 0.750"-40 SM18RR 0.40" (10.2 mm) SPW801
CPN20 20 mm Ø0.68" (Ø17.3 mm) 0.24" (6.1 mm) M20.5 x 0.5 SM20RR 0.40" (10.2 mm) SPW801
  • Clear Aperture of Retaining Ring
  • Maximum Optical Thickness: This specification is true for thin lenses. For lenses with small focal lengths, and hence large lens curvatures, please contact Tech Support to ensure a proper fit.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CPN05 Support Documentation
CPN0530 mm Cage Plate for Ø5 mm Optic, 2 SM5RR Retaining Rings Included
$33.60
3-5 Days
CPN06 Support Documentation
CPN0630 mm Cage Plate for Ø6 mm Optic, 2 SM6RR Retaining Rings Included
$33.60
3-5 Days
CPN08 Support Documentation
CPN0830 mm Cage Plate for Ø8 mm Optic, 2 SM8RR Retaining Rings Included
$33.60
3-5 Days
CPN09 Support Documentation
CPN0930 mm Cage Plate for Ø9 mm Optic, 2 SM9RR Retaining Rings Included
$33.60
3-5 Days
CPN15 Support Documentation
CPN1530 mm Cage Plate for Ø15 mm Optic, 2 SM15RR Retaining Rings Included
$34.95
3-5 Days
CPN18 Support Documentation
CPN1830 mm Cage Plate for Ø18 mm Optic, 2 SM18RR Retaining Rings Included
$34.95
Lead Time
CPN20 Support Documentation
CPN2030 mm Cage Plate for Ø20 mm Optic, 2 SM20RR Retaining Rings Included
$37.27
3-5 Days
Last Edited: Sep 06, 2013 Author: Dave Gardner