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Light Sources & Photodiodes

3x3 2um Monolithic Single Mode Coupler

Product Description: 

The Monolithic Single Mode fusion couplers feature compact size, very low insertion loss and polarization dependence, excellent environmental stability and loss uniformity. These couplers were designed for power splitting or combining of optical signals. They are widely used for optical modules and the fiber sensors, fiber testing instruments.


Central Wavelength (nm)
1950, 2000, 2050 or other wavelength
Bandwidth (nm) ± 20
Insertion Loss (dB) 6.2
Typical Excess Loss (dB)    0.6
PDL (dB)     < 0.25
Uniformity (dB) ≤ 1.0
Return Loss (dB)    > 50
Directivity (dB)    > 55
Operating Temperature (ºC)   -40 ~ 85 for bare fiber; -20 ~ 75 for Loose tube 
Dimensions (mm)     3(Φ)X54(L) for bare fiber, 4.0(Φ)X70(L) for loose tube
Fiber Type     SMF-28e, SM1950 or others

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