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Multimode Fiber Couplers

Applications

Local area networks
CATV systems
Subscriber loop
Fiberoptic instruments
Fiber sensors

Features

Low insertion loss
Wide operating wavelength
Compact size
Excellent environmental &
Mechanical stability

Performance Specifications

Type	Multimode Standard Fiber Couplers
Coupling Ratio (%)	50/50
Grade	P
Excess Loss (Typical) (dB)	0.7
Max. Insertion Loss (dB)	4.0 /4.0
Uniformity (Max.) (dB)	0.8
Directivity (dB)	>35
Central Wavelength (nm)	850 or 1310 or Customized
Operating Temperature	-40° C - 85° C
Fiber Type	Corning Multimode 50/125, 62.5/125 Fiber
Fiber Pigtail Length (m)	1 M or Custom on Request
Port Configuration	1x2 or 2x2
Package Dimension	Package A,B,C

For 50/125 um, 62.5/125 um Fiber, 50% coupling ratio, operating wavelength at 850nm.
* * Measured under the stable mode condition with LED light source.

SM Dual Window Couplers

Applications

Long-haul telecommunications
CATV systems & Fiber sensors
Local area network

Features

Low excess loss
Various coupling ratio
Compact size

Specifications:(Take Pass Channel wavelength 1550nm for example)

Coupling Ratio(%)	Jan-50
Directivity (dB)	>55 dB
Return Loss	>55 dB
Operating Temperature	-40°C - 85°C for package A,B,S /-20°C ~70°C for package C
Storage Temperature	-40°C - 85°C
Fiber Type	Corning Single mode SMF-28E, G657A
Fiber Pigtail Length (m)	1meter
Port Configuration	1x2 or 2x2
Package Dimension	Package A, B, C,S

SM Single Fusion Tree 1X4

Applications

Telecommunication systems
Digital, hybrid and AM-Video system
CATV systems
Fiber sensors

Features

Low excess loss
Single fusion design
Uniform power splitting
Compact size

Performance Specifications

Type	Single Fused
Grade	P	A
Port Configuration	1 x 4	1 x 4
Excess Loss (Typ.) (dB)	0.3	0.5
Insertion Loss (Max.) (dB)	6.8	7.6
Uniformity (Max.) (dB)	1	1.6
Polarization Sensitivity (dB)	0.12	0.15
Operating Wavelength (nm)	980,1310, 1480, 1550, 1585+10nm or custom wavelength
Directivity (dB)	50
Operating Temperature (° C)	-125
Fiber Type	Corning Singlemode SMF-28E, DS Fiber, or custom fiber
Fiber Pigtail Length (m)	1
Package Dimension (mm)	3X54mm or 3X60mm

SM Tree and Star Couplers

Applications

Long-haul telecommunications
Digital, hybrid and AM-Video systems
CATV systems
High speed local area networks
Fiber sensors

Features

Low excess loss
Uniform power splitting
Rugged package
Excellent environmental & mechanical stability

Performance Specifications

Directivity (dB)	>55 dB
Operating Temperature	-40 ° C - 85 ° C
Storage Temperature	-40 ° C - 85 ° C
Fiber Type	Corning Singlemode SMF-28E , DS Fiber, or Flexcore
Fiber Pigtail Length (m)	1m or Custom on Request
Port Configuration	1x4 to 32x32

Singlemode Standard Tree/Star Couplers
Configuration Type	1x 4(4x4)	1x8 (8x8)	1x16 (16x16)	1x32 (32x32)
Maximum insertion loss (dB)	6.8	10.2	13.6	17.5
Uniformity (Max.) (dB)	0.7	1	1.2	1.4
Poralization Dependant Loss (Max.) (dB)	0.15	0.2	0.25	0.3
Operating Wavelength (nm)	850, 980, 1310, 1550, 1585, or custom wavelength
Package Dimension	D,S	D,S	E	E