488-2100nm PM Fused Coupler

Specifications

Parameter

Unit

Value

Center Wavelength (λc)

nm

488, 532, 635

780, 830

980, 1064

1310, 1480,  1550

1700, 2000

Operating Wavelength

nm

λc ± 5

λc ± 10

λc ± 10

λc ± 20

λc ± 20

Typ. Excess Loss

dB

0.8

0.5

0.4

0.2

0.5

Max. Excess Loss

dB

1.2

0.8

0.6

0.4

0.8

Min. ER*

dB

18

18

20*

20

20

Max. Excess Loss for each connector

dB

1.5

0.7

0.5

0.3

0.3

Max. Optical Power (Continuous Wave)

W

2

Thermal Stability

dB/℃

≤0.005 

Min. Return Loss

dB

50

Min. Directivity

dB

50

Fiber Type for Signal Port

PM fiber

Fiber Type for Tap Port

PM fiber or Singlemode fiber

Operating Temperature

℃

-5 to +75

Storage Temperature

℃

-40 to +85

Coupling Ratio & Its Tolerance

Coupling Ratio

%

1/99

2/98

5/95

10/90

20/80

30/70

40/60

50/50

Max. Coupling Ratio Tolerance, λc

%

± 0.3

± 0.5

± 0.7

± 1.0

± 2.0

± 2.0

± 2.5

± 3.0

 Coupling Ratio

 Tap Ratio Tolerance, λc