HTMM50-03 Beam Steering Mirror Mount

Overview

The HTMM50-03 Beam Steering Mirror Mount is a precision-engineered optical adjustment mount designed for stable, repeatable angular alignment of reflective optics in demanding laboratory and industrial optical setups. Engineered for compatibility with both 50 mm (1.97″) and 50.8 mm (2.00″) diameter mirrors—standard sizes used across laser cavities, interferometric systems, and beam delivery paths—the mount employs a three-point kinematic base with dual-axis micrometer-driven tip/tilt actuators. Its mechanical design follows established principles of elastic averaging and low-hysteresis flexure guidance, minimizing drift under thermal fluctuation and mechanical vibration. Unlike simplified lever-arm mounts, the HTMM50-03 utilizes orthogonal, independently adjustable stainless-steel push-pull screws with 10 µm pitch resolution, enabling sub-arcsecond angular control without inducing optic stress or decentering. It is intended for static or semi-static alignment tasks where long-term positional stability, minimal backlash, and compatibility with vacuum-compatible accessories are critical.

Key Features

• Bi-standard aperture support: Accepts optics with outer diameters of 50 mm and 50.8 mm via interchangeable retaining rings—ensuring interchangeability with Thorlabs, Newport, and other ISO-standard 2″ optic carriers.
• Kinematic mounting base with three-point contact geometry reduces parasitic rotation and improves thermal stability over cast-aluminum or single-bolt platforms.
• Micrometer actuators (10 µm per division) with locking thumbscrews provide tactile feedback and prevent unintended drift during system operation or transport.
• Anodized aluminum housing (6061-T6) offers high stiffness-to-weight ratio, EMI shielding properties, and resistance to oxidation in ambient lab environments.
• Integrated M6 and 1/4″-20 threaded holes on the base plate allow direct mounting to optical tables, breadboards, translation stages, or custom fixtures without adapter plates.
• No internal adhesives or plastic components—designed for cleanroom use and compatibility with bake-out protocols up to 60 °C.

Sample Compatibility & Compliance

The HTMM50-03 accommodates dielectric, metallic, and protected gold-coated mirrors ranging from 3 mm to 12 mm thickness, provided outer diameter falls within the specified 50–50.8 mm tolerance band. It complies with ISO 10110-7 surface form tolerances when used with optics meeting λ/10 or better surface flatness. The mount itself conforms to ISO 9001 manufacturing controls and is RoHS-compliant. While not certified for aerospace or medical device integration, its dimensional repeatability (≤ ±2 arcsec over 100 thermal cycles between 18–25 °C) meets typical requirements for academic and industrial R&D labs operating under GLP-aligned documentation practices.

Software & Data Management

As a passive mechanical mount, the HTMM50-03 does not incorporate embedded electronics, firmware, or digital interfaces. Alignment data is recorded manually or integrated into broader system-level calibration logs via external metrology tools—including autocollimators (e.g., Teledyne FLIR AlignScope), position-sensitive detectors (PSDs), or interferometric wavefront sensors. When deployed in automated beam steering assemblies, it may be paired with motorized rotation stages (e.g., Zaber T-NA series) and controlled through LabVIEW, Python (PyVISA), or MATLAB-based alignment algorithms that reference its mechanical zero point and angular scaling factor (0.001° per 10 µm actuator displacement, empirically verified per batch).

Applications

• Laser cavity alignment for CW and pulsed solid-state lasers (Nd:YAG, Ti:Sapphire, fiber-coupled diodes)
• Interferometer arm balancing in Michelson, Mach-Zehnder, and Twyman-Green configurations
• Beam path folding in compact spectrometers and OCT light engines
• Optical pumping geometry optimization in ultrafast spectroscopy setups
• Reference mirror mounting in gravitational wave detector prototype benches
• Alignment station integration for teaching labs using Meos or PASCO optical kits

FAQ

Does the HTMM50-03 support vacuum environments?

Yes—when assembled with vacuum-rated retaining rings and mounted using stainless-steel hardware, it has been validated for UHV use up to 1×10⁻⁶ mbar, provided no lubricants are applied to adjustment screws.
Can I replace the included micrometer screws with motorized actuators?

Yes—the standard M4x0.7 thread interface on each actuator port allows direct integration with piezoelectric nanopositioners or stepper-motorized leadscrews from Physik Instrumente or New Scale Technologies.
Is thermal drift characterized across the full operating temperature range?

Drift measurements show < 3 arcsec peak-to-peak variation over 18–30 °C ambient shifts when mounted on a granite optical table; active temperature stabilization is recommended for sub-arcsecond stability over extended periods.
What is the maximum safe torque for the retaining ring?

Maximum recommended torque is 0.4 N·m—exceeding this risks deformation of the aluminum cell or damage to coated mirror edges.
Are CAD models available for mechanical integration?

STEP and IGES files are provided upon request for registered institutional users and OEM partners, including GD&T annotations per ASME Y14.5-2018.