Custom Quartz Laser Pump Cavities

Parameter	Typical Range
Rod bore	3–15 mm
Lamp bore	3–15 mm
Outer OD	10–50 mm
Length	50–300 mm
Bore concentricity / parallelism	±0.02–0.05 mm
Reflective surface	Diffuse (frosted) as standard; coated on request
Bore surface finish	Fire-polished or ground

Inquiry

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Quartz pump cavity bodies bored for a laser rod and flashlamp side by side, with the bore geometry and reflective surface that actually determine pump coupling — not just an outer cylinder.

Rod bore, lamp bore, and their parallelism to each other and to the outer OD aren't independent — a cavity can hit both bore diameters individually and still misalign the pump geometry if parallelism isn't held between them. Specify all three together.

Rod Bore, Lamp Bore and Cavity Geometry

The rod and lamp bores run the length of the cavity, parallel to each other and to the outer surface. Bore diameter is sized to the rod and lamp OD with a small working clearance — send both diameters, not just the cavity's outer size. Where a single-bore or multi-lamp configuration is needed instead of the standard two-bore layout, tell us the configuration up front, since it changes how concentricity is checked.

Quartz Laser Pump Cavities Factory Standard & Manufacturing Limit

The table above is what's repeatable without added lead time. Bore parallelism and position are the figures most likely to need confirmation at the tightest end — a long cavity holds parallelism less easily than a short one at the same bore diameter.

Laser Pump Cavity Bore Configurations

Reflective surface treatment (diffuse frosting on the outer wall, to redirect lamp light into the rod) is standard; specular coating is available where our current coating capability supports it — confirm before assuming it's included. Before shipment we check bore diameters, bore-to-bore spacing, concentricity/parallelism, overall length, end-face condition, and surface finish.

Single / MultiCavity Structure

Rod + LampControlled Bores

JGS2Optical Quartz Option

Au / AgReflective Finish Options

Ø × LPrimary Quote Dimensions

WaterCooling Interface Option

Pump Geometry

Specify the Rod, Lamp and Cooling Interfaces Together

Controlled Feature	Reference Capability / Requirement
Cavity Construction	Monolithic multi-bore body or assembled optical cavity, selected from the laser architecture
Rod Bore	Diameter, fit and datum specified from the laser-rod envelope
Lamp Bore	Diameter and count defined for the flashlamp arrangement
Bore Spacing	Center distance and positional relationship controlled as one optical geometry
Bore Parallelism	Specified where rod-to-lamp alignment affects pumping uniformity
Internal Surface	Polished, diffuse-reflective, gold-coated or silver-coated as required
Cooling Interface	Port position, tube connection and sealed flow path defined by drawing
End Faces	Ground or polished according to sealing and optical access requirements

Reflector Selection

Match the Internal Surface to the Pump Architecture

Configuration	Optical Function	Drawing Inputs
Diffuse Quartz	Broad internal scattering without a metal reflector layer	Bore layout, active length, surface zone
Gold-Coated	Reflective cavity option for wavelength and thermal conditions defined by the system	Coated area, masking, cooling exposure
Silver-Coated	Alternative reflective finish where the optical design calls for silver	Coated area, protection and interface details
Flow-Tube Assembly	Quartz body combined with a defined coolant path	Ports, seals, pressure responsibility and assembly drawing

Available Forms

Cavity and Reflector Configurations

Monolithic Multi-BoreRod and lamp channels machined or formed in one quartz body

Multi-Part AssemblyMatched quartz pieces assembled around the optical and cooling layout

Coated ReflectorGold or silver zone controlled by a coating and masking drawing

Integrated Flow PathCoolant ports and tube interfaces incorporated into the cavity assembly

Applications

Lamp-Pumped Laser Systems

Solid-State Laser CavitiesRod and flashlamp alignment for lamp-pumped laser assemblies

Industrial Laser SourcesCustom replacement cavities built from the equipment drawing or sample

Laser Research PlatformsSingle- and multi-lamp geometries for experimental pump layouts

Need a pump cavity matched to an existing laser assembly?Send the rod and lamp diameters, bore spacing, active length, reflector finish, cooling interfaces and assembly drawing.

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Engineering Data