Spatial Filter Assembly

Spatial Filter Assembly Specification

Lens
Accepts standard microscope objective lenses and pinholes

Objective
To clean and shape laser beams for laboratory and photonic applications

Color
Black (Body), Silver (Knobs)

Magnification
Supports objective lenses ranging from 10x to 100x

Measurement
Spatial filtration and beam profile adjustment

Accuracy
High precision alignment for optical beam spatial filtering

Theory
Improves laser beam quality by filtering higher order spatial modes

Product Type
Spatial Filter Assembly

Material
Aluminum alloy body, stainless steel components

Size
Adjustable lens holder 25 mm to 38 mm diameter

Weight
Approx. 0.85 kg

Length
Body length approx. 130 mm

Function
Precise spatial mode filtering, beam collimation and cleaning

Resolution
Micro-positioning adjustments with sub-micron accuracy

Spatial Filter Assembly Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
4 Pieces Per Month

Delivery Time
4 Week

Main Export Market(s)
Asia

Main Domestic Market
All India

About Spatial Filter Assembly

Spatial Filter Assembly

Type: Fixed Pin Hole, Detachable Pin Hole
Material: Black Anodized Al
Mounting Slots: M6

Fixed Pinhole

Model No.	Microscope Objective	Pin Hole (micron)	Cost
CSFA-F-10-25	10X	25	32,000/-
CSFA-F-20-15	20X	15	36,000/-
CSFA-F-40-10	40X	10	40,000/-

Detachable Pinhole

Model No.	Microscope Objective	Pin Hole (micron)	Cost
CSFA-D-10-25	10X	25	70,000/-
CSFA-D-20-15	20X	15	75,000/-
CSFA-D-40-10	40X	10	80,000/-

Precision Alignment and Advanced Design

This spatial filter assembly combines a high-accuracy micrometer-driven xyz translation stage with an adjustable XY diaphragm, ensuring exact pinhole-lens alignment for enhanced beam quality. The body features a robust aluminum alloy design with black anodized finish to prevent stray light, while silver stainless steel knobs offer durable, precise handling. Compatibility with standard optical components simplifies integration into existing setups.

Flexible Compatibility and Customization

Engineered to fit most laboratory environments, the assembly mounts effortlessly on standard optical breadboards and posts. Adjustable lens holders accommodate objectives from 10x to 100x and lens diameters from 25 mm to 38 mm. For specialized projects, aperture size and pinhole options can be customized to suit experimental requirements without compromising precision.

Comprehensive Application and Package

Optimized for laser research, holography, interferometry, and beam shaping, this assembly includes all essential components: lens holders, pinholes, XY stage, guide rail, and base plate. Its working wavelength range of 4001100 nm ensures versatility for VIS to NIR applications. The system enables high-resolution spatial filtering and stable, repeatable beam collimation.

FAQs of Spatial Filter Assembly:

Q: How does the spatial filter assembly improve laser beam quality?

A: The assembly uses an objective lens to focus the laser beam through a precisely aligned pinhole, which filters out higher-order spatial modes and cleans the beam profile, resulting in a more uniform and high-quality output.

Q: What is the process for aligning the pinhole in the assembly?

A: Alignment is achieved using the micrometer-driven xyz translation mechanism and precision XY adjustable diaphragm, allowing sub-micron positioning of the pinhole relative to the focused spot for optimal spatial filtering.

Q: When should I choose different pinhole sizes with this assembly?

A: Pinhole size selection depends on your lasers beam diameter and divergence. Smaller pinholes (525 microns) are ideal for tighter focusing and higher spatial filtering, while larger pinholes (up to 100 microns) allow more light through but with less filtering.

Q: Where can the spatial filter assembly be used?

A: It is designed for use in laboratory environments, including laser research facilities, photonics labs, and setups for holography, interferometry, and general beam shaping tasks requiring high alignment accuracy.

Q: What are the compatible lens and mounting options?

A: The assembly accepts standard microscope objective lenses ranging from 10x to 100x and fits lens diameters between 25 mm and 38 mm. It mounts directly on standard optical breadboards and posts.

Q: How does the anodized black finish benefit optical experiments?

A: The anodized black surface minimizes stray reflections and scattering, enhancing contrast and measurement accuracy during sensitive optical experiments.

Q: What is included in the spatial filter assembly package?

A: The package includes the assembly body, lens holders, pinholes, XY translation stage, guide rail, and base plate, ensuring comprehensive setup for immediate use and alignment tasks.

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