3 ports fiber optic FTB coupler steel tube optical fiber FWDM splitter 1*2 coupler for FTTH

FWDM Optical Filter 3 Channel FC SC APC UPC FWDM 1310nm 1490nm 1550nm Optical Filter Filter WDM module extensively used in optical amplifiers, WDM networks. The device combines or separates light at different wavelengths (1310nm/1490nm/1550nm) in a wide wavelength range. It can expand the capacity of a single fiber to achieve bidirectional communication, so that widely used in optical network upgrade and expansion, or introduce new comprehensive business etc.

It works on 1310nm/1490nm, so CATV signal here is delivered over same fiber using 1550nm, and FWDM is a place where all this get together.

	Parameters	Unit	Specifications
1	Operating Wavelength Range	nm	1260 ~ 1620		1520 ~ 1570
2	Channel Spacing	---	20nm		100GHz
3	Channel Passband (@-0.5dB bandwidth)	nm	IUT ± 6.5		UT ± 0.125
4	Channel Quantity	---	C4CH	C8CH	C4CH	C8CH
5	Max. Pass Band Ripple	dB	<0.35		<0.4
6	Max. Channel Insertion Loss	dB	≤1.8	≤3.0	≤2.0	≤3.2
7	Min. Adjacent Channel Isolation	dB	>30		>25
8	Min. Non-Adjacent Channel Isolation	dB	>45		>35
9	Min. Express Channel Isolation		>13		>12
10	Min. Return Loss	dB	≥45
11	Max. PDL	dB	<0.1	<0.1	<0.20	<0.30
12	Insertion Loss Temperature Sensitivity	dB/℃	<0.005
13	Wavelength Temperature Shifting	nm/℃	<0.002
14	Max. Power Handling	mW	300
15	Directivity	dB	≥50
16	Operation Temperature Range	℃	-40 to +80
17	Storage Temperature Range	℃	-40 to +85
18	Fiber Jacket & Fiber Length	cm	Customize
19	Package Dimensions – 1	mm	100 * 80 * 10 or Customize
20	Package Dimensions – 2	mm	LGX Compatible
21	Package Dimensions – 3	mm	19” 1U Rack Mounted
22	Connector Type	--	SC/LC/FC or Customize
23	Fiber Type and Jacket Color		G.652D / G.657 A1 (or Customize)