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.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating wavelength [without connector] | 1310 or 1550, others on request |
| Operating bandwidth [without connector] | ±15 nm |
| Package dimension（Φ×L） [without connector] | Φ1.2×18 |
| Typical excess loss [Grade P; without connector] | 0.15 dB |
| PDL [Grade P; without connector] | ≤0.1 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 50/50] | ≤3.60 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 40/60] | ≤4.60/2.8 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 30/70] | ≤5.90/2.10 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 20/80] | ≤7.80/1.30 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 10/90] | ≤11.30/0.75 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 5/95] | ≤14.50/0.50 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 3/97] | ≤16.90/0.40 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 2/98] | ≤18.80/0.35 dB |
| Insertion loss [Grade P; without connector; Coupling ratio 1/99] | ≤21.80/0.30 dB |
| Typical excess loss [Grade A; without connector] | 0.25 dB |
| PDL [Grade A; without connector] | ≤0.15 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 50/50] | ≤3.80 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 40/60] | ≤4.90/3.00 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 30/70] | ≤6.30/2.20 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 20/80] | ≤8.20/1.50 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 10/90] | ≤11.80/0.90 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 5/95] | ≤15.00/0.55 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 3/97] | ≤17.60/0.45 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 2/98] | ≤19.50/0.40 dB |
| Insertion loss [Grade A; without connector; Coupling ratio 1/99] | ≤22.50/0.35 dB |
| Directivity [without connector] | ≥50 dB |
| Operating temperature [without connector] | -40 ~ +85 ℃ |
| Configuration [without connector] | 1×2 or 2×2 |
| Fiber lead length [without connector] | 1 meter, others on request |
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