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Passive Devices-All-Fiber Polarization Maintaining Coupler. ( PM Coupler )

Optical Fiber Couplers are reliable passive devices for splitting optical signal in a number of optical network applications. FiberLogix manufactures All-Fiber couplers from proven fused technology with variety of optical performance at different wavelengths to fulfill system designer's requirements. These compact devices provide low insertion loss, extremely low back reflection, good extinction ratio and stability over a variety of environmental conditions. In house process expertize allows extremely tight control on the optical performance, quality and reliability. These devices are designed to meet Telcordia standards GR 1209 and GR 1221.

Applications:

Optical transmission systems
Optical fiber sensors
EDFA and Raman amplifier

Features:

Low Loss
High Power handling
Low cost
Good Extinction Ratio

Specifications
Wavelength	800, 980,1060,1300,1480 and 1550 nm
Fiber configuration	1x2,2x2, 1x3 and 3x3
Polarization Axis	Slow axis
	Premium P Grade	A Grade
Extinction Ratio(cross talk) dB	Typical 20, Max 23	Typical 18, Max 20
Excess Loss	0.3 typ. and max 0.4	0.4 typ. and 0.5 Max
Coupling Ratio	1, 5, 10, 50 or 99%
Bandwidth	+/-20nm
Directivity	>55dB
Input Power	>2W
Return loss	>55
Storage temp.	-50 to 85°C
Operating Temperature	-40 to 85 °C
Fiber type	PM Panda fiber
Pigtail option	1m fiber standard or 0.5m, 900um optional
Package size	3x 55mm (bare fiber)

Splitting Ratio	Tolerance,
	1x2 or 2x2
	Premium	A Grade
99.5/0.5⁸	+/-0.2	+/-0.2
99/1⁸	+/-0.4	+/-0.5
98/2	+/-0.6	+/-0.8
95/5	+/-1.5	+/-1.8
90/10	+/-2.0	+/-2.5
50/50	+/-5	+/-6
	1x3 and 3x3^7,9
33/33/33	+/-8	+/-10

1: All specifications for operation with Slow axis.
2: Center wavelength can be optimized for different applications.
3: Smaller package dimension can also be custom made.
4: Others fibers like E-core, Tiger or Bow tie are also available on request.
5: PM couplers can be integrated with In Line fiber Polarizers or other PM devices on request.
6: Smaller packaging dimensions can also available on request
7: Only available in 1310 and 1550nm wavelength range.
8: Tap fiber is also available in SM or Flexcore 1060 fiber configuration.
9: Specifications can be tailored to meet customer’s requirements.
10: Devices are Telcordia qualified.

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