Changzhou Bell Data Communication Equipments Co., Ltd.

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FIBER OPTIC COUPLER

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Detailed Product Description

Overview:

The single mode standard coupler (SSC) features low excess loss, high stability and reliability. It is built by asymmetric coupling technique. The operating bandwidth of this normal coupler is expanding to ±40nm, and the ultra broadband coupler is expanding to ±80nm. The DWC has the same coupling ratio on both 1310nm and 1550nm communication windows, and with low excess loss and low PDL. DWC are widely used for communication systems, CATV, and FTTH.

Characteristics:

Low Excess Loss

Low PDL

All Fiber Construction

High Reliability

Outstanding Optical Performance

Different Fiber Types Available

Applications:

Fiber To The HomeFTTH

LAN

Passive Optical Networks (PON)

Fiber Optic CATV

Testing Equipment

Fiber Sensing

Performance index

1×2 Single mode:

Parameter		Single Window		Dual Windows
Operating Wavelength(nm)		1310 or 1550		1310 and 1550
Operating Bandwidth(nm)		± 20		± 40
Grade		A	B	A	B
Typical Excess Loss(dB)		0.07	0.10	0.07	0.10
Insertion Loss(dB)	50/50	≤3.4	≤3.6	≤3.6	≤3.8
	40/60	≤4.4/2.5	≤4.7/2.8	≤4.7/2.7	≤4.9/2.9
	30/70	≤5.7/1.8	≤6.0/2.0	≤6.0/1.9	≤6.4/2.1
	20/80	≤7.5/1.2	≤8.0/1.4	≤7.9/1.4	≤8.5/1.5
	10/90	≤10.8/0.7	≤11.5/0.9	≤11.0/0.7	≤12.0/0.8
	5/95	≤14.6/0.4	≤15.5/0.6	≤14.6/0.5	≤15.5/0.5
	2/98	≤18.4/0.25	≤18.8/0.3	≤18.5/0.4	≤19.0/0.4
	1/99	≤21.5/0.20	≤22.5/0.25	≤21.5/0.30	≤21.5/0.35
Thermal StabilitydB		≤0.2	≤0.3	≤0.2	≤0.3
PDLdB		≤0.10	≤0.15	≤0.10	≤0.15
ReflectancedB		≥55
DirectivitydB		≥55
Operating Temperature		-40 85

1×2 Multimode:

Parameter		Single Window
Operating Wavelengthnm		850 or 1300
Grade		A	A
Typical Excess LossdB		0.5	0.7
Insertion Loss(dB)	50/50	≤3.9	≤4.3
	40/60	≤4.9/3.0	≤5.4/3.5
	30/70	≤6.2/2.3	≤6.7/2.7
	20/80	≤8.0/1.8	≤8.7/2.1
	10/90	≤11.3/1.2	≤12.2/1.6
	5/95	≤14.9/0.9	≤16.2/1.3
	1/99	≤22.1/0.7	≤22.7/1. 0
Thermal StabilitydB		≤0.2	≤0.25
PDLdB		≤0.10	≤0.15
ReflectancedB		≥35
DirectivitydB		≥35
Operating Temperature		-40 85