High-Precision Broadband Adjustable-Focus Fiber Collimator FAC11-1D-SMA-T2

JCOPTIX high-precision broadband fiber collimators collimate fiber output or couple free-space light into fibers. Controlled machining tolerances and special internal structures maintain coaxial alignment throughout focus adjustment. Purely axial linear drive moves the lens assembly precisely along the optical axis without lens rotation or circumferential twisting. This avoids pointing changes, axis offsets, and polarization changes associated with rotary focusing. Entirely mechanical fixation eliminates adhesives and elastic elements, improving durability and environmental adaptability. Stable geometry under temperature/humidity variations provides reliable, repeatable long-term collimation/coupling with high coupling efficiency. High-quality lenses preserve Gaussian output and coupling efficiency. Multiple high-precision broadband adjustable-focus models and extensive custom options are available; contact support. High-precision broadband adjustable-focus fiber collimator, FC/PC connector. Fiber connector: FC/PC; lens travel ±1 mm; pointing shift below 0.5 mrad; reliable locking distributes force uniformly without local compression; lenses neither rotate nor twist during focusing; for output collimation or free-space-to-fiber coupling. The lens-to-fiber-face distance adjusts over ±1 mm. Controlled tolerances and special internal construction maintain concentricity, while pure axial drive translates lenses without rotation or twisting. Compact construction facilitates integration. Optimized mechanics provide stability and resistance to thermal drift. Collimated output has a good Gaussian profile, with high-efficiency fiber coupling. Both collimation and free-space-to-fiber coupling maintain coaxial alignment. Contact support for custom requirements. High-precision broadband adjustable-focus fiber collimator, FC/APC connector. Fiber connector: FC/APC; lens travel ±1 mm; pointing shift below 0.5 mrad; reliable uniformly distributed locking without local compression; no lens rotation/twisting during focus; collimation or free-space-to-fiber coupling. Lens-to-fiber-face spacing adjusts over ±1mm. Controlled tolerances and special internal construction maintain concentricity; pure axial drive translates lenses without rotation/twisting. Compact optimized mechanics facilitate integration, mechanical stability, and resistance to thermal drift. A good Gaussian output profile and high coupling efficiency support both collimation and free-space coupling while maintaining coaxial alignment. Contact support for customization. High-precision broadband adjustable-focus fiber collimator, SMA connector. Fiber connector: SMA905; lens travel ±1mm; pointing shift below 0.5mrad; reliable uniformly distributed locking without local compression; lenses do not rotate/twist; collimation or free-space-to-fiber coupling. Lens-to-fiber-face distance adjusts over ±1 mm. Controlled tolerances and special internal construction maintain concentricity; pure axial drive translates lenses without rotation or circumferential twisting. Compact optimized mechanics facilitate integration, stability, and thermal-drift resistance. A good Gaussian output profile and efficient coupling support collimation and free-space-to-fiber coupling with continuous coaxial alignment. Contact support for custom needs. Coupling-stability testing at 670 nm used two identical FAC4.5-1D-APC-T2 high-precision broadband adjustable-focus collimators and FCS1-APC-600-770 single-mode fiber. Plot labels: FACxx Normalized Coupling Efficiency@ 0.4 m; FACxx Normalized Coupling Efficiency@ 1.6 m. The left plot covers a 0.4 m distance over 24 hours; the right covers 1.6 m over 50 hours.

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