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1xN Singlemode Coupler
1xN Singlemode Coupler
1xN Singlemode Coupler
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OPTKO's Singlemode coupler 1X2 2X2 offer very low insertion loss, low polarization dependence and excellent environmental stability Accurate coupling ratio from 50/50 to 1/99 and fiber type 250um bare fiber, 3mm and 900um loose tube fiber are available with very tight uniformity. Singlemode standard coupler and wideband coupler components find extensive application to perform power splitting and monitoring functions in all kinds of optical communication systems.

  • Passed Telcordia GR-1221-CORE, and 85℃, 85%RH test up to 1500 hours

  • Low excess loss

Applications

  • Long-haul Telecommunications

  • CATV Systems & Fiberoptic Sensors

  • Local Area Network

  • FTTH & LAN 

Performance Specifications

Single Standard Couplers

Grade

P Grade

A Grade

Coupling Ratio(%)

50/50

50/50

Excess Loss (Typical)(dB)

0.07

0.1

Maximum lnsertion loss(dB)

3.4

3.5

Polarization Sensitivity (dB)

0.15

0.2

Operating Wavelength(nm)

1310,1480,1550 or custom wavelength


Single Wideband Couplers

Grade

P Grade

A Grade

Coupling Ratio(%)

50/50

50/50

Excess Loss (Typical)(dB)

0.07

0.1

Maximum lnsertion loss(dB)

3.4

3.6

Polarization Sensitivity (dB)

0.15

0.2

Operating Wavelength(nm)

1310±40,1550±40,or custom wavelength

Coupling Ratio(%)

1~50

Directivity (dB)

≥55

Operating Temperature(℃)

-20~+80

Storage Temperature(℃)

-40~+85

Fiber Type

Corning singlemode SMF-28,DS fiber or flexcore

Fiber Pigtail Length(m)

1

Port Configuration

1×2 or 2×2

Dimensions (mm)

Package D,E,F,G

Coupling Ratio/insertion Loss Conversion Chart

Coupling Ratio

lnsertion Loss


P Grade

A Grade

40/60

4.4/2.5

4.6/2.8

30/70

5.6/1.8

6.0/2.0

20/80

7.4/1.1

7.7/1.3

10/90

10.8/0.6

11.6/0.8

5/95

14.2/0.4

14.6/0.5

2/98

18.5/0.2

19.0/0.3

1/99

21.0/0.2

21.5/0.3

Package Dimensions & Pigtail Style

Package Dimensions:

Package D:3mm x 45mm stainless steel tube


Package E:3mm x 54mm stainless steel tube


Package F:3mm x 60mm stainless steel tube


Package G:10mm x 20mm x 90mm case


Pigtail Style:

Package D,E:

250um bare fiber

Package F

250um bare fiber or 900um loose tube

Package G:

2mm,3mm cable or 900um loose tube


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