Buying Fiber Couplers

AMS Techno­logies provides a broad variety of fiber couplers for single mode (SM), multi mode (MM) and polarization maintaining (PM) fibers for various applications:

• SM couplers & combiners, also in low-loss fused fiber technology
• module-style SM couplers & combiners in small or 19-inch-cases
• fused MM couplers & combiners
• PM couplers & combiners with customizable coupling ratio and/or wavelength
• fused PM couplers & combiners
• PM couplers based on bow-tie fibers
• high-power MM N×1 pump combiners for high-power fiber laser applications
• MM power combiners, also with signal feedthrough
• high temperature couplers for up to +250 °C
• sub-zero PM couplers operating from −55 °C
• fused dual-clad fiber (FDCF) couplers

Specialist in Special Optical Devices

See us at SPIE Photonics West 2025 in San Francisco, January 25–30 (booth 4212)!

CSRAYZER’s polarization-maintaining filter or fused coupler series products are used to split inputs from a polarization-maintaining optical fiber according to the given coupling ratio. They are widely used in fiber lasers, optical fiber amplifiers, optical fiber communications and fiber sensors, having compact dimensions, low insertion loss, low polarization dependent loss and high stability, and the ability to work under different temperature conditions.

Never stop exploring!

See us at SPIE Photonics West 2025 in San Francisco, January 25–30 (booth 441)!

Focuslight Technologies has fiber couplers which allow one to couple the light from a single emitter or from multiple emitters into a single fiber with only one lens element. They consist of a monolithic glass block with two opposite crossed cylindrical surfaces and mounting surfaces. The light of the fast and slow axes is collimated by one cylindrical lens to produce an almost symmetrical focus.

all wavelengths.

See us at SPIE Photonics West 2025 in San Francisco, January 25–30 (booth 1527, 3501, 3603)!

TOPTICA´s COOL patent pending fiber coupling concept is new, because it does not use any mechanical micro adjustable parts, which normally are the first to move due to thermal or mechanical influences.All major optical components are solidly mounted and the optical micro alignment is unsusceptible to mechanical and thermal distortions or translations.

Optics, Photonics and Metrology

See us at SPIE Photonics West 2025 in San Francisco, January 25–30 (booth 3456)!

High precision fiber couplers (fiber port) optimized for high pointing stability and long-term stability. Efficient coupling of ­collimated laser radiation into ­single-mode and PM fiber cables. Available as 60SMS and 60SMF version.

DK Photonics uses a unique fusing technique and polarization-maintaining fibers to fabricate the polarization maintaining fused coupler (PMC). The coupling ratio can be selected according to the customer’s request. It features low excess loss, small size and high polarization extinction ratio. PMC is widely used for optical sensors and optical gyros.