Coupler, Splitter and WDM

Highlights:

1. Compact and customer specified size and package, highly reliable and stable

2. Low excess loss

3. Excellent directivity, optional splitting ratio

4. Low polarization sensitivity

5. Excellent mechanical and environmental stability, comply with Telcordia standard

6. Competitive price

Application:

1. Long-haul telecommunication

2. LAN, WAN Networks

3. Optical fiber sensor

4. Network Monitoring

5. CATV System

Operating Parameter

Parameter	Performance
Directivity (Min)	≥60 dB (1×2) ≥65 dB (2×2)
Temperature	0.002 dB/℃
Working Temperature	-40℃ ~ +85℃ applicable to pigtail
Storing Temperature	-40℃ ~ +85℃ applicable to pigtail

l Coupler

Single Mode Fiber Coupler

Parameter		Unit	Premium	A Grade
Center Wavelength		nm	980, 1310, 1480 or 1550
Insertion Loss	Max	dB	3.4	3.6
Excess Loss	Typical	dB	0.1	0.15
Uniformity	Max	dB	0.6	1.0
PDL	Max	dB	0.10	0.15
Bandwidth		nm	10
Directivity	Min	dB	55
Temperature Coefficient	Max	dB/℃	0.002
Operating Temperature		℃	-40 ~ +85

Single Mode Single Window Broad Band Coupler

Parameter		Unit	Premium	A	B
Center Wavelength		nm	1310, 1550
Insertion Loss	Max	dB	3.3	3.5	3.7
Excess Loss	Typical	dB	0.07	0.10	0.15
Uniformity	Max	dB	0.4	0.5	0.6
PDL	Max	dB	0.05	0.10	0.15
Bandwidth		nm	±50
Directivity	Min	dB	≥60 (1×2) ≥65 (2×2)
Temperature Coefficient	Max	dB/℃	0.002
Operating Temperature		℃	-40 ~ +85

Single Mode Dual Window Broad band Coupler

Parameter		Unit	Premium	A	B
Center Wavelength		nm	1310, 1550
Insertion Loss	Max	dB	3.4	3.5	3.7
Excess Loss	Typical	dB	0.07	0.10	0.15
Uniformity	Max	dB	0.6	0.8	1.0
PDL	Max	dB	0.07	0.10	0.15
Bandwidth		nm	±50
Directivity	Min	dB	≥60 (1×2) ≥65 (2×2)
Temperature Coefficient	Max	dB/℃	0.002
Operating Temperature		℃	-40 ~ +85

l Splitter

Single Mode Standard Tree Splitter (1×N)/Star(N×N) Coupler/Splitter

Parameter		Unit	N×4 (N=1,4)		N×8 (N=1,8)		N×16 (N=1,16)		N×32 (N=1,32)
Operating Wavelength		nm	1310, 1550 or customer specified
Bandwidth		nm	±20
Grade			P	A	P	A	P	A	P	A
Insertion Loss	Max	dB	6.8	7.5	10	11.2	13.2	14.2	17	18.2
Excess Loss	Max	dB	0.2	0.3	0.3	0.4	0.4	0.5	0.5	0.6
Uniformity	Max	dB	1.0	1.6	1.8	2.8	2.4	3.6	3.0	4.8
PDL	Max	dB	0.2	0.22	0.3	0.32	0.4