MPD119-M01
Ø1" 90° Off-Axis Parabolic Mirror, Prot. Gold, RFL = 1"
Quantity
Key Highlights
90° Off-Axis Parabolic (OAP) Mirror designed for efficient focusing and collimating of light
Protected gold coating provides broad infrared (IR) wavelength performance.
1" (25.4 mm) diameter for compact optical system integration
1" (25.4 mm) Reflected Focal Length (RFL) for short-focal-length applications
0.5" (12.7 mm) Parent Focal Length (PFL)
<λ/2 RMS reflected wavefront error at 633 nm
Off-axis design eliminates the need to place the optical source or detector in the reflected beam path.
Suitable for IR optics, laser systems, spectroscopy, and fiber-coupling applications
Three 4-40 mounting taps on the bottom provide convenient integration with optical mounts and systems.
Compact design for use in space-constrained optical setups
Description
The Thorlabs MPD119-M01 is a Ø1" 90° Off-Axis Parabolic (OAP) Mirror featuring a protected gold coating and a 1" reflected focal length. It is designed to efficiently focus or collimate light while providing a convenient 90° beam turn, making it particularly useful for compact and high-performance optical systems. Unlike conventional parabolic mirrors, the off-axis configuration allows the input and output beams to be spatially separated from the mechanical axis of the mirror. This provides greater flexibility when designing optical systems where components such as detectors, light sources, or fiber-optic assemblies need to be positioned without obstructing the optical path. The protected gold coating makes the MPD119-M01 particularly suitable for applications involving infrared wavelengths, while its 1" diameter and short 1" reflected focal length provide a compact solution for focusing and beam-collimation applications. The mirror provides a reflected wavefront error of <λ/2 RMS at 633 nm, supporting applications where controlled optical performance is important. Three 4-40 tapped holes on the bottom provide additional mounting flexibility for integration into optical mounts and laboratory setups. The MPD119-M01 is well suited for researchers and engineers developing laser optics, infrared optical systems, spectroscopy instruments, fiber-coupling setups, and other precision photonics applications.
Specifications
Optical Component Type: 90° Off-Axis Parabolic Mirror Mirror Diameter: Ø1" (25.4 mm) Reflected Focal Length (RFL): 1" (25.4 mm) Parent Focal Length (PFL): 0.5" (12.7 mm) Mirror Thickness: 1.25" (31.7 mm) Coated: Protected Gold Reflected Wavefront Error: <λ/2 RMS at 633 nm Off-Axis Angle: 90° Bottom Mounting: Three 4-40 Taps Application Focus: Beam Focusing, Beam Collimation, IR Optics, Laser Systems Specifications are based on the manufacturer's published product information.
Application
Infrared (IR) Optical Systems
Laser Beam Focusing
Laser Beam Collimation
Fiber Optic Coupling
Fourier Transform Infrared (FTIR) and Spectroscopy Systems
Infrared Spectroscopy
Laser Communication Systems
THz and Multispectral Optical Systems
Free-Space Optical Systems
Detector and Source Coupling
Research and Development in Photonics