MiXran Meg1059 High-Precision Wedge Prism

Overview

The MiXran Meg1059 High-Precision Wedge Prism is a metrology-grade optical component engineered for precise beam steering, collimation adjustment, and angular displacement calibration in laser alignment, interferometry, and optical cavity tuning applications. Based on the principle of refraction at non-parallel surfaces, the Meg1059 introduces a controlled angular deviation to an incident collimated beam—proportional to its wedge angle and refractive index—without inducing lateral beam displacement or focus shift when used in pairs. Manufactured from high-homogeneity N-BK7 optical glass (Schott equivalent), each prism undergoes precision diamond lapping and deterministic polishing to achieve surface flatness better than λ/10 @633 nm and wedge angle tolerance of ±5 arcseconds. Its monolithic construction ensures thermal stability, minimal wavefront distortion (<λ/20 RMS), and long-term repeatability under laboratory and OEM integration conditions.

Key Features

• Precision-ground wedge geometry with angular tolerances ≤ ±5″ across all standard configurations (0.87–17.63 mrad)
• Φ25.0 mm clear aperture with edge thickness ranging from 3.0 mm to 10.0 mm, optimized for mechanical mounting in kinematic and flexure-based holders
• Surface quality rated at 20–10 scratch-dig per MIL-PRF-13830B, verified via automated interferometric inspection
• Multiple anti-reflection coating options: broadband AR (350–700 nm), NIR-optimized AR (600–1100 nm), and SWIR-optimized AR (900–1700 nm), each delivering <0.25% average reflectance per surface
• Uncoated variant available for UV-sensitive or custom coating applications requiring low outgassing or high-LIDT handling
• Traceable dimensional certification included; each unit supplied with individual test report documenting measured wedge angle (via autocollimator), surface flatness (Zygo GPI interferometer), and transmitted wavefront error

Sample Compatibility & Compliance

The Meg1059 is compatible with continuous-wave and pulsed laser sources operating from ultraviolet (248 nm excimer) through visible and near-infrared up to 1700 nm, provided appropriate coating selection and power density limits are observed. It meets ISO 10110-3:2019 specifications for wedge prisms and conforms to RoHS 2011/65/EU and REACH (EC 1907/2006) material compliance requirements. All coated variants are qualified for use in Class 100 cleanroom assembly environments and support GLP-aligned optical setup documentation protocols. No regulatory certification (e.g., FDA, CE marking) applies, as the Meg1059 is classified as a passive optical component—not a medical device or safety-critical subsystem.

Software & Data Management

While the Meg1059 itself is a passive element, its integration into automated optical systems benefits from standardized digital asset management. Each part number (e.g., GW15-025-060-NIR) maps directly to a unique entry in MiXran’s Optical Component Metadata Schema (OCMS v2.1), which includes spectral transmittance curves (measured via PerkinElmer Lambda 1050+), wedge angle histograms, and coating durability data (adhesion per ISO 2409, humidity resistance per ISO 6270-2). Customers integrating the Meg1059 into metrology workflows may import calibrated performance files (.csv/.xml) into Zemax OpticStudio, CODE V, or FRED for first-order beam path modeling and tolerance analysis. Audit trails for calibration certificates are retained for ≥7 years in accordance with ISO/IEC 17025:2017 clause 7.8.3.

Applications

• Laser cavity alignment and mode-matching in Ti:sapphire, Nd:YAG, and fiber laser systems
• Angular calibration reference in autocollimators, electronic levels, and dual-axis goniometers
• Beam walk correction in multi-pass amplifier architectures and pulse compressor staging
• Optical path difference (OPD) generation in white-light and laser-based interferometers (e.g., Michelson, Twyman-Green)
• Mounting reference for tilt-stage feedback loops in adaptive optics and active mirror control systems
• OEM integration into spectrometer slit illumination modules and LIDAR receiver front-ends requiring stable angular bias

FAQ

What is the maximum permissible power density for the AR-coated Meg1059 prisms?

For CW lasers at 1064 nm, the AR@600–1100 nm coated variants support ≤500 W/cm² (unfocused); for nanosecond pulses (10 ns, 10 Hz), the damage threshold is ≥5 J/cm². Exact LIDT values are provided in the individual test report.
Can the Meg1059 be used in vacuum environments?

Yes—N-BK7 substrate and ion-beam-sputtered AR coatings exhibit negligible outgassing (per ASTM E595: TML <0.05%, CVCM <0.01%). Vacuum-compatible mounting fixtures are recommended.
Is custom wedge angle or diameter available?

Custom geometries (Φ12.5–50.8 mm, wedge angles from 0.1–30 mrad) are supported under MiXran’s OEM Component Program (lead time: 6–8 weeks; MOQ: 10 units).
How is wedge angle verified during production?

Each prism undergoes direct measurement using a high-resolution autocollimator (TRIOPTICS AccuAngle AA-100, resolution 0.01″), cross-validated against interferometric fringe analysis per ISO 10110-7.
Do you provide mounting solutions or kinematic cells for the Meg1059?

Standard SM1-threaded kinematic mounts (KCB1P/M) and adjustable prism tables (PT1/M) are listed in the Accessories Catalog; custom CNC-machined holders can be co-designed upon request.