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The function and the performance of the mini size WDM couplers are the same as the regular WDM couplers. These mini size WDM couplers are widely used in EDFA modules and communication systems.
Key Features
Mini size
High isolation
Low PDL
Low excess loss
High stability and reliability
Applications
EDFA modules
WDM systems
Testing instruments
Specifications
Type Parameter | 980/1550 WDM | 980/1590 WDM | 1310/1550 WDM | |||
Operating wavelength (nm) | 980 and 1550 | 980 and 1590 | 1310 and 1550 | |||
Operating bandwidth (nm) | ±10/20 | ±10/20 | ±15 | |||
Package dimensions (Ф×L) (mm) | Ф2.4/3.0×30, Ф2.4×25 | Ф2.4×30 | ||||
Grade | P | A | P | A | P | A |
Insertion loss (dB) | ≤0.25 | ≤0.35 | ≤0.25 | ≤0.35 | ≤0.25 | ≤0.35 |
Isolation (dB) | ≥20 | ≥18 | ≥20 | ≥18 | ≥17 | ≥16 |
PDL (dB) | ≤0.08 | ≤0.12 | ≤0.08 | ≤0.12 | ≤0.08 | ≤0.12 |
Fiber lead length | 0.8 meter, others on request | 1 meter, others on request | ||||
Directivity (dB) | ≥55 | |||||
Operating temperature (℃) | -40 ~ +85 | |||||
Configuration | 1×2 or 2×2 |
* The above specification is without connector
*Other specifications can be made on customer request.