COUPLER
COUPLER
Singlemode Single Window Standard Coupler
Singlemode Single Window Wideband Coupler
Singlemode Dual Window Wideband Coupler
Singlemode Single-Fused 1x3 (1x4) and 3x3 Coupler
Singlemode Tree/Star Coupler
Multimode Coupler
42
COUPLER
SINGLEMODE SINGLE WINDOW STANDARD COUPLER
Features
• Low excess loss
• Variety of coupling ratios available
• Compact size
•
Excellent environmental and mechanical stability
Applications
•Long-haul optical telecommunications
•LAN, WAN systems
•Test equipment
•Fiber sensors
•CATV systems
Coupling ratio ( % ) 50 40 30
Grade P A P A P A
Excess loss ( typical ) (dB ) 0.1 0.1 0.1 0.1 0.1 0.1
Max. insertion loss ( dB ) 3.3 3.4 4.3/2.4 4.5/2.5 5.5/1.7 5.6/1.8
Uniformity ( max. ) ( dB )* 0.3 0.35
Polarization sensitivity ( dB ) ≤0.1 ≤0.1 ≤0.1 ≤0.15 ≤0.1 ≤0.15
Operating wavelength ( nm )** 850, 980, 1310, 1480, 1550 or 1585
Directivity ( dB ) ≥55 ( for 1x2 ), ≥65 ( for 2x2 )
Thermal stability ( typical ) ( dB / ˚C ) ≤0.002
Operating temperature ( ˚C ) -40 ~ +85
Storage temperature ( ˚C ) -40 ~ +85
Fiber pigtail type Bare fiber, 900µm loose tube, or 3mm cable
Fiber pigtail length ( m ) 1 meter, or custom on request
Port configuration 1x2 or 2x2
Package dimensions ( mm ) Package A, B, C
Coupling Ratio ( % ) / Insertion Loss ( dB ) Conversion Chart
Coupling ratio ( % ) P A
20/80 7.4/1.1 7.6/1.3
10/90 10.8/0.6 12.0/0.8
5/95 14.6/0.4 15.0/0.5
1/99 21.5/0.2 22.0/0.3
Specifications
* High flatness can be requested.
** Other operating wavelengths are available upon request.
43
COUPLER
SINGLEMODE SINGLE WINDOW WIDEBAND COUPLER
Features
• Low excess loss
• Variety of coupling ratios available
• Compact size
•
Excellent environmental and mechanical stability
Applications
•Long-haul telecommunications
•LAN, WAN systems
•Test equipment
•Fiber sensors
•CATV systems
Coupling ratio ( % ) 50 40 30
Grade P A P A P A
Excess loss ( typical ) ( dB ) 0.1 0.1 0.1 0.1 0.1 0.1
Max. insertion loss ( dB ) 3.4 3.5 4.4/2.5 4.8/2.8 5.6/1.8 5.8/2.0
Uniformity ( max. ) ( dB )* 0.6 0.6
Polarization sensitivity ( dB )** ≤0.1 ≤0.15 ≤0.15 ≤0.15 ≤0.2 ≤0.2
Operating wavelength ( nm ) 1310 ± 40, 1550 ± 40 or 1585 ± 40
Directivity ( dB ) ≥55 ( for 1x2 ), ≥65 ( for 2x2 )
Thermal stability ( typical ) ( dB / ˚C ) ≤0.002
Operating temperature ( ˚C ) -40 ~ +85
Storage temperature ( ˚C ) -40 ~ +85
Fiber type Corning SMF-28
Fiber pigtail type Bare fiber, 900µm loose tube, or 3mm cable
Fiber pigtail length ( m ) 1 meter, or custom on request
Port configuration 1x2 or 2x2
Package dimensions ( mm ) Package A, B, C
Coupling Ratio ( % ) / Insertion Loss ( dB ) Conversion Chart
Coupling ratio ( % ) P A
20/80 7.4/1.1 8.0/1.3
10/90 10.8/0.6 12.0/0.8
5/95 14.6/0.4 15.0/0.5
1/99 21.5/0.2 22.0/0.3
Specifications
Transmission Spectrum
* High flatness can be requested.
** Low PDL is available upon request.
Coupling Ratio (%)
Wavelength (nm)
100
90
80
70
60
50
40
30
20
10
0
1260 1270 1280 1290 1300 1310 1320 1330 1340 1350 1360
44
COUPLER
SINGLEMODE DUAL WINDOW WIDEBAND COUPLER
Features
• Low excess loss
• Variety of coupling ratios available
• Compact size
•
Excellent environmental and mechanical stability
Applications
• Long-haul telecommunications
• LAN, WAN systems
• Test equipment
• Fiber sensors
• CATV systems
Coupling ratio ( % ) 50 40 30
Grade P A P A P A
Excess loss ( typical ) ( dB ) 0.1 0.1 0.1 0.1 0.1 0.1
Max. insertion loss ( dB ) 3.6 3.7 4.7/2.7 5.0/2.9 6.0/1.9 6.4/2.1
3.5* 3.6* 4.5/2.6* 4.8/2.8* 5.8/1.8* 6.0/2.0*
Uniformity ( max. ) ( dB ) 0.8 0.85
0.6* 0.7*
Polarization sensitivity ( dB )** ≤0.1 ≤0.15 ≤0.2 ≤0.2 ≤0.2 ≤0.2
Operating wavelength ( nm ) 1310/1550 ± 40
Directivity ( dB ) ≥55 ( for 1x2 ), ≥65 ( for 2x2 )
Thermal stability ( typical ) ( dB / ˚C ) ≤0.002
Operating temperature ( ˚C ) -40 ~ +85
Storage temperature ( ˚C ) -40 ~ +85
Fiber type Corning SMF-28
Fiber pigtail type Bare fiber, 900µm loose tube, or 3mm cable
Fiber pigtail length ( m ) 1 meter, or custom on request
Port configuration 1x2 or 2x2
Package dimensions ( mm ) Package A, B, C
Coupling Ratio ( % ) / Insertion Loss ( dB ) Conversion Chart
Coupling ratio ( % ) P A
20/80 7.9/1.2 8.5/1.4
10/90 11.3/0.6 12.7/0.8
5/95 15.2/0.4 16.5/0.5
1/99 23.5/0.3 24.0/0.4
Specifications
Coupling Ratio (%)
Wavelength (nm)
100
90
80
70
60
50
40
30
20
10
0
1260 1340 1420 1500 1580
* Operating wavelength range is 1310/1550 ± 20nm.
** Low PDL is available upon request.
45
COUPLER
SINGLEMODE SINGLE-FUSED 1X3 (1X4) AND 3X3 COUPLER
Features
• Low excess loss
• Variety of coupling ratios available
• Compact size
•
Excellent environmental and mechanical stability
Applications
• Telecommunication systems
• LAN, WAN systems
• Fiber optic sensors
• CATV systems
Type Single Window Standard Single Window Wideband
Grade A B A B
Excess loss ( typical ) ( dB ) 0.3 0.5 0.3 0.5
Max. insertion loss ( dB ) 5.8 ( 6.9* ) 6.0 ( 7.2* ) 6.0 ( 7.2* ) 6.6 ( 7.6* )
Uniformity ( max. ) ( dB ) 1.0 1.2 1.2 1.6
Polarization sensitivity ( dB ) ≤0.15 ≤0.2 ≤0.15 ≤0.2
Operating wavelength ( nm ) 1310 ± 10, 1550 ± 10 or 1585 ± 10 1310 ± 20, 1550 ± 20 or 1585 ± 20
Directivity ( dB ) ≥55 ( for 1x3 and 1x4 ), ≥65 ( for 3x3 and 4x4 )
Thermal stability ( typical ) ( dB / ˚C ) ≤0.002
Operating temperature ( ˚C ) -40 ~ +85
Storage temperature ( ˚C ) -40 ~ +85
Fiber type Corning singlemode SMF-28
Fiber pigtail type Bare fiber, 900µm loose tube
Fiber pigtail length ( m ) 1 meter, or custom on request
Package dimensions Package B, C ( for 900µm loose tube )
Specifications
* For 1x4 coupler.
46
COUPLER
SINGLEMODE TREE/STAR COUPLER
Features
•Low excess loss
•Uniform power splitting
•Rugged package
•Excellent environmental stability
•Variety of splitting ratios and configurations
•Optical path epoxy free
Applications
•Long-haul telecommunications
•LAN, WAN systems
•Military and aerospace systems
•Fiber optic sensors
•CATV systems
Directivity ( dB ) ≥55
Operating temperature ( ˚C ) -40 ~ +85
Storage temperature ( ˚C ) -40 ~ +85
Fiber type Corning Singlemode SMF-28
Fiber pigtail type 900µm loose tube, or 3mm cable
Fiber pigtail length ( m ) 1 meter, or custom on request
Port configuration 1x3 to 32x32
Singlemode Single Window Standard Tree/Star Couplers
Configuration type 1x3 1x5 1x6 1x7 1x9
Max. insertion loss ( dB ) 5.3 7.9 8.8 9.5 11.0
Uniformity ( max. ) ( dB ) 0.4 0.8 0.9 1.0 1.5
Package dimensions Package D*, E*
Operating wavelength ( nm ) 1310, or 1550
Singlemode Single Window Wideband Tree/Star Couplers
Configuration type 1x3 1x5 1x6 1x7 1x9
Max. insertion loss ( dB ) 5.5 8.2 9.3 10.2 11.3
Uniformity ( max. ) ( dB ) 0.7 1.4 1.5 1.6 2.0
Package dimensions Package D*, E*
Operating wavelength ( nm ) 1310 ± 40, or 1550 ± 40
Singlemode Dual Window Wideband Tree/Star Couplers
Configuration type 1x3 1x5 1x6 1x7 1x9
Max. insertion loss ( dB ) 5.7 8.2 9.2 10.0 11.5
Uniformity ( max. ) ( dB ) 1.0 1.4 1.5 1.7 2.0
Package dimensions Package D*, E*
Operating wavelength ( nm ) 1310/1550 ± 40
Specifications
* Package with 3mm cable or 900µm loose tube.
* Package with 3mm cable or 900µm loose tube.
* Package with 3mm cable or 900µm loose tube.
47
Features
• Low excess loss
• Uniform power splitting
• Rugged package
•
Excellent environmental and mechanical stability
• Variety of splitting ratios and
configurations available
Applications
• Long-haul telecommunications
• LAN, WAN systems
• Military and aerospace systems
• Fiber optic sensors
• CATV systems
Directivity ( dB ) ≥55
Operating temperature ( ˚C ) -40 ~ +85
Storage temperature ( ˚C ) -40 ~ +85
Fiber type Corning Singlemode SMF-28 ( 1310, 1550 ) or Flexcore ( 850, 980 )
Fiber pigtail type 900µm loose tube, or 3mm cable
Fiber pigtail length ( m ) 1 meter, or custom on request
Port configuration 1x4 to 32x32
Singlemode Single Window Standard Tree/Star Couplers
Configuration type 1x4 ( 4x4 ) 1x8 ( 8x8 ) 1x16 ( 16x16 ) 1x32 ( 32x32 )
Max. insertion loss ( dB ) 6.8 10.5 14.0 17.5
Uniformity ( max. ) ( dB ) 0.6 1.3 1.8 2.5
Package dimensions Package D* Package D* Package E* Package G*
Operating wavelength ( nm ) 850, 980, 1310, 1550, or 1585
Singlemode Single Window Wideband Tree/Star Couplers
Configuration type 1x4 ( 4x4 ) 1x8 ( 8x8 ) 1x16 ( 16x16 ) 1x32 ( 32x32 )
Max. insertion loss ( dB ) 7.2 10.8 14.5 18.0
Uniformity ( max. ) ( dB ) 1.2 1.8 2.4 3.0
Package dimensions Package D* Package D* Package E* Package F*
Operating wavelength ( nm ) 1310 ± 40, 1550 ± 40 or 1585 ± 40
Singlemode Dual Window Wideband Tree/Star Couplers
Configuration type 1x4 ( 4x4 ) 1x8 ( 8x8 ) 1x16 ( 16x16 ) 1x32 ( 32x32 )
Max. insertion loss ( dB ) 7.6 ( 7.2** ) 11.5 ( 10.8** ) 15.5 ( 14.5** ) 19.5 ( 18.5** )
Uniformity ( max. ) ( dB ) 1.7 ( 1.4** ) 2.6 ( 2.1** ) 3.5 ( 2.8** ) 4.3 ( 3.5** )
Package dimensions Package D* Package D* Package E* Package F*
Operating wavelength ( nm ) 1310/1550 ± 40 or ( ** 1310/1550 ± 20 )
Specifications
COUPLER
SINGLEMODE TREE/STAR COUPLER
Features
* Package with 3mm cable or 900µm loose tube.
* Package with 3mm cable or 900µm loose tube.
* Package with 3mm cable or 900µm loose tube.
** Operating wavelength = 1310/1550 ± 20nm.
48
COUPLER
MULTIMODE COUPLER
Features
• Low insertion loss
• Compact size
• Broad operating wavelength band
• Excellent environmental and mechanical stability
Applications
• Local area networks
• CATV systems
• Subscriber loops
• Fiber optic instruments
• Fiber sensors
Multimode Standard Couplers
Coupling ratio ( % ) 50 ( 1-49 on custom request )
Grade A B
Excess loss ( typical ) ( dB ) 0.5 ( 0.8* ) 0.7 ( 1.0* )
Max. insertion loss ( dB ) 3.5 ( 4.0* ) 3.7 ( 4.2* )
Uniformity ( max. ) ( dB ) 0.6 0.8
Directivity ( dB ) ≥40
Operating wavelength ( nm ) 600 ~ 1600
Central wavelength ( nm ) 850 or 1310
Operating temperature ( ˚C ) -40 ~ +85
Fiber type Corning multimode 50/125, 62.5/125, 100/140µm fiber
Fiber pigtail type Bare fiber, 900µm loose tube, or 3mm cable
Fiber pigtail length ( m ) 1 meter, or custom on request
Port configuration 1x2 or 2x2
Package dimensions Package A, B, C
Multimode Tree/Star Couplers
Configuration type 1x4 4x4 1x8 8x8 1x16 16x16 1x32 32x32
Max. insertion loss ( dB ) 7.0 7.5 10.5 11.0 14.0 14.5 17.5 22.0
7.6* 8.2* 11.0* 11.5* 15.0* 15.5* 18.5* 23.0*
Package dimensions Package D, M Package D Package E Package F
Directivity ( dB ) ≥40
Operating wavelength ( nm ) 600 ~ 1600
Central wavelength ( nm ) 850 or 1310
Operating temperature ( ˚C ) -40 ~ +85
Fiber type Corning multimode 50/125, 62.5/125, 100/140µm fiber
Fiber pigtail type 900µm loose tube or 3mm cable
Fiber pigtail length ( m ) 1 meter or custom on request
Specifications
* For 50/125µm, 62.5/125µm fiber, 50% coupling ratio.
* For 50/125µm, 62.5/125µm fiber.
