Single Window Wideband Coupler
Overview:
Veecom's Single Window Wideband Couplers are high quality components designed to divide or combine optical signal in optical fiber system. These devices are fabricated by using the fused biconical taper (FBT) process and are reliable over wide range of temperature. The operating wavelength is 1310nm or 1550nm and the passband is 80nm. The coupling ratio can change from 1:99 to 50:50. Various packaging and pigtailing configurations can satisfy our customers' requirements.
Features:
Low insertion loss
Low excess loss
Low PDL
High directivity
Long haul reliability
Customer defined specifications
Specification:

Parameter			Unit	Premium	A	B
Operating Wavelength			nm	1310±40 or 1550±40
Excess Loss		Typ/ Max	dB	0.15
Polarization Stability		Max	dB	0.1	0.1	0.15
Uniformity (50:50)		Max	dB	0.4	0.5	0.6
Thermal Stability		Max	dB	0.2	0.3	0.4
Directivity		Min	dB	50 (1x2), 60 (2x2)
Reflectance		Min	dB	50 (1x2), 60 (2x2)
Operating Temperature			°C	-30 ~ 85
Storage Temperature			°C	-40 ~ 85
Insertion Loss	50/50	Max	dB	3.3/3.3	3.4/3.4	3.6/3.6
	45/55			3.8/2.9	3.9/3.0	4.0/3.1
	40/60			4.3/2.5	4.4/2.6	4.6/2.7
	35/65			4.9/2.1	5.0/2.2	5.2/2.3
	30/70			5.6/1.8	5.7/1.85	5.9/1.9
	25/75			6.4/1.45	6.5/1.55	6.7/1.6
	20/80			7.4/1.15	7.5/1.2	7.7/1.3
	15/85			8.7/0.9	8.8/0.95	9.0/1.0
	10/90			10.5/0.6	10.6/0.7	10.8/0.8
	5/95			13.7/0.35	13.8/0.4	14.0/0.5
	1/99			21.0/0.15	21.3/0.2	21.6/0.25