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Needle Size Coupler (SSC)

Needle size couplers feature compact package size, low insertion loss, and high reliability performance. These couplers are designed for optical modules, fiber sensors, and fiber testing instruments.

Features
§  Super mini-size
§  Low excess loss
§  High stability and reliability 

Applications
§Fiber sensor 
§Testing instruments 

Specifications
Parameter Needle size coupler
Operating wavelength (nm) 1310 or 1550, others on request
Operating bandwidth (nm) ±15
Package dimension   (Ф×L) (mm) Ф1.2×18
Grade P A
Typical excess loss (dB) 0.15 0.25
Insertion loss (dB) 50/50 ≤3.60 ≤3.80
40/60 ≤4.60/2.8 ≤4.90/3.00
30/70 ≤5.90/2.10 ≤6.30/2.20
20/80 ≤7.80/1.30 ≤8.20/1.50
10/90 ≤11.30/0.75 ≤11.80/0.90
5/95 ≤14.50/0.50 ≤15.00/0.55
3/97 ≤16.90/0.40 ≤17.60/0.45
2/98 ≤18.80/0.35 ≤19.50/0.40
1/99 ≤21.80/0.30 ≤22.50/0.35
PDL (dB) ≤0.1 ≤0.15
Directivity (dB) ≥50
Operating temperature (℃) -40 ~ +85
Configuration 1×2 or 2×2
Fiber lead length 1 meter, others on request
*The above specification is without connector
*Other specifications can be made on customer request