Fiber optic couplers are optical devices that connect three or more fiber ends, dividing one input between two or more outputs, or combining two or more inputs into one output.
Fiber optic coupler is different from WDM.WDM Module or WDM device can divide the different wavelength fiber light into different channels. Fiber optic couplers divide the light power and send it to different channel.
Single window fiber optic coupler is with one working wavelength. Dual window fiber optic coupler is with two working wavelength. For Single mode fiber, the term means that the fiber is optimized for 1310 nm and 1550 nm; For Multimode fiber, the term means that the fiber is optimized for 850 nm and 1310 nm.
Choices for fiber optic coupler type include Single window narrow band, Single window Wide band, and Dual window Wide band fiber optic coupler.
Single Window Narrow band Fiber optics couplers (1310 +/-10nm or 1510 +/-10nm) are designed for a single wavelength with a narrow wavelength window.
1. 1310nm or 1550nm Singlemode fiber optic coupler
2. 1310nm or 1550nm Singlemode Tree coupler
3. 1310nm or 1550nm Unitary 1(3) x 3 coupler
Single Window Wideband fiber optics couplers (1310 +/-40nm or 1510+/-40nm; 850nm +/-40nm or 1310nm+/-40nm) are designed for a single wavelength with a wider wavelength window.
1. 1310nm or 1550nm Singlemode Wideband coupler
2. 1310nm or 1550nm Unitary 1x3 wideband coupler (+/-30nm)
3. 1310nm or 1550nm Wideband Tree coupler
4. 850/1310nm Standard Multimode coupler
Dual Window Wideband Fiber optics couplers (1310 +/-40nm and 1510+/-40nm) are designed for to wavelengths with a wide wavelength window for each.
1. 1310/1550nm Dual window wideband coupler
2. 1310/1550nm Dual window Tree coupler
3. 1310/1550nm Dual window Star coupler
4. 1310/1550nm Unitary 1X3 Dual Window Wideband
Fiber Optic Couplers and PLC Splitters are available in a variety of styles, sizes, port configurations, couple (split) values, and wavelength specifications allowing a high degree of flexibility in tailoring the product to suit your precise requirements and application.
Besides Fiber Optic coupler, Based on FTB technologies, we also offer Optical Filter and Fused WDM module for your different applications.