1x2 and 2x2 Singlemode Fiber Optic Couplers

Newport’s wide range of Fiber Optic Couplers have been developed using fused fiber technology. The optical fiber couplers allow bi-directional coupling and can be used to either split or combine signals.

Broadband, wavelength flattened or single wavelength
633, 780, 850, 1310 and 1550 nm wavelengths
Low optical loss 1x2 and 2x2 fused couplers
Environmentally stable

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Showing 10 of 25 total products

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Description	Compatibility	Type	Operating Wavelength	Coupling Ratio	Fiber Connector	Excess Loss, Typical	Maximum Insertion Loss	Avail.	Price
F-CPL-S12635-FCUPCOptical Fiber Coupler, Single Wavelength, 1 x 2, 50/50, 633nm, FC/UPC	UNIVERSAL	1x2 Single Wavelength Coupler	633 nm	50%/50%	FC/UPC	0.2 dB	3.8 dB	Contact Us	$370
F-CPL-S12635-FCAPCOptical Fiber Coupler, Single Wavelength, 1 x 2, 50/50, 633nm, FC/APC	UNIVERSAL	1x2 Single Wavelength Coupler	633 nm	50%/50%	FC/APC Narrow Key	0.2 dB	3.8 dB	Contact Us	$440
F-CPL-S12785Optical Fiber Coupler, Single Wavelength, 1 x 2, 50/50, 780nm.	UNIVERSAL	1x2 Single Wavelength Coupler	780 nm	50%/50%	Bare Fiber	0.2 dB	3.8 dB	In Stock	$285
F-CPL-S12785-FCUPCOptical Fiber Coupler, Single Wavelength, 1 x 2, 50/50, 780nm, FC/UPC.	UNIVERSAL	1x2 Single Wavelength Coupler	780 nm	50%/50%	FC/UPC	0.2 dB	3.8 dB	In Stock	$375
F-CPL-S12785-FCAPCOptical Fiber Coupler, Single Wavelength, 1 x 2, 50/50, 780nm, FC/APC	UNIVERSAL	1x2 Single Wavelength Coupler	780 nm	50%/50%	FC/APC Narrow Key	0.2 dB	3.8 dB	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$395
F-CPL-S12855Optical Fiber Coupler, Single Wavelength, 1 x 2, 50/50, 850nm.	UNIVERSAL	1x2 Single Wavelength Coupler	850 nm	50%/50%	Bare Fiber	0.2 dB	3.8 dB	In Stock	$290
F-CPL-S12855-FCAPCOptical Fiber Coupler, Single Wavelength, 1 x 2, 50/50, 850nm, FC/APC	UNIVERSAL	1x2 Single Wavelength Coupler	850 nm	50%/50%	FC/APC	0.2 dB	3.8 dB	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$410
F-CPL-F12131Fiber Coupler, Wavelength Flattened, 1 x 2, 10/90, 1310 nm.	UNIVERSAL	1x2 Wavelength Flattened Coupler	1310 nm	10%/90%	Bare Fiber	0.1 dB	0.63 dB	In Stock
F-CPL-F12155Fiber Coupler, Wavelength Flattened, 1 x 2, 50/50, 1550nm.	UNIVERSAL	1x2 Wavelength Flattened Coupler	1550 nm	50%/50%	Bare Fiber	0.1 dB	3.4 dB	In Stock
F-CPL-B12355Optical Fiber Coupler, Broadband, 1 x 2, 50/50, 1310/1550nm	UNIVERSAL	1x2 Broadband Coupler	1310/1550 nm	50%/50%	Bare Fiber	0.08 dB	3.6 dB	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$75

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Specifications

Fiber Type
Singlemode
Return Loss
55 dB
(633, 780 and 850 nm Single Wavelength Models: 60 dB)

Bandwidth
Broadband and Wavelength Flattened Models: ±40 nm
Operating Humidity
90-95%

Features

50/50 Fiber Optic Couplers

50/50 fiber optic couplers are used to evenly split fiber optic light. A 2x2 coupler combines the light on one side and evenly splits it on the other side. A 1x2 coupler works in the same way, but one of the input fibers has been cut short. We offer broadband, narrowband and wavelength flattened versions.

10/90 Fused Fiber Optic Couplers

10/90 fiber optic couplers are used to split off 10% of the input fiber optic light. We offer broadband, narrowband and wavelength flattened versions.

FC/UPC, FC/APC or Bare Fiber Pigtails

All standard models come with non-terminated (pigtailed) ends. FC/UPC or FC/APC fiber connectors are also available for most models.

Rugged Housing and Cabling

A semi-ruggedized housing, used on 1x2 and 2x2 couplers at 633, 780, and 850 nm, consists of a stainless steel outer housing from which 1 m long, 900 µm buffered fibers exit through molded strain relief boots. All other couplers feature a fully ruggedized black plastic housing with 1 m long, 3 mm PVC covered pigtails.

Fused Biconical Taper Construction

A fused coupler consists of two, parallel optical fibers that have been twisted, stretched and fused together so that their cores are very close to each other. This forms a coupling region with the length determining the coupling ratio from one fiber to the other. During the manufacturing process, light is launched into an input port and the output power from each output port is carefully monitored. When the desired coupling ratio is achieved, the fully automated manufacturing process is stopped. The resulting coupler is essentially one fiber with two cores that are very near to one another. This process is known as the Fused Biconical Taper (FBT) process.

Broadband Fiber Optic Couplers

Our Broadband couplers optimized to work over both the 1310 and 1550 nm windows. This allows users the versatility to use a single device at both wavelengths.

Wavelength Flattened Fiber Optic Couplers

Wavelength flattened fiber optic couplers extend the optimal wavelength range to a band of ±40 nm around center wavelengths of 1310 or 1550 nm. The wavelength flattened couplers are ideal solutions for applications that require some spectral range around either 1310 or 1550 nm. Unlike the Broadband devices, these will not work well at both wavelengths.

Single Wavelength Fiber Optic Couplers

Single wavelength couplers provide optimal performance at center wavelengths of 633, 780, 850, 1310, or 1550 nm. These devices are designed for the specified wavelengths and come with more options than both the Broadband and Wavelength Flattened devices.