1.5 μm Fiber Isolator

An isolator is typically used to block light traveling in the backward direction. Our proprietary design with epoxy-free optical path provides the device with high power handling capability.

1.5 μm Fiber Isolator

Polarization Insensitive: AP-ISO-1550PI
Polarization Maintaining: AP-ISO-1550PM
  • Low insertion loss
  • High isolation
  • High power
  • High extinction ratio (PM version)
  • Excellent stability and reliability
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1.5 μm Fiber Isolator Specification Sheet

AP-ISO-1550PI-and-1550PM_16.1.pdf

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Product Characteristics

AP-ISO-1550PI
ParameterUnitSpecification
Center Wavelength
nm

1550

Operating Wavelength
nm

+/-20

Max. Optical Power (CW)
W

1, 5, or 10

Typical Peak Isolation (Dual Stage)
dB

58

Min. Isolation at 23 °C (Dual Stage)
dB

48

Typical Insertion Loss at 23 °C
dB

0.4

Max. Insertion Loss at -5 to 70 °C
dB

0.55

Min. Return Loss (Input/Output)
dB

55/50

Max. PDL at 23 °C
dB

0.05

Max. PMD
ps

0.05

Min. Extinction Ratio
dB

N/A

Package Dimensions
mm

Ø5.5 x 35 (for 1 to 5 W)
12 x 10 x 80 (for 10 W)

Operating Temperature
mm

Ø5.5 x 35 (for 1 to 5 W)
12 x 10 x 80 (for 10 W)

Storage Temperature
°C

-5 to +70

Max. Tensile Load
N

5

Fiber Type
Type

SMF-28e Fiber
250 µm Bare Fiber

Fiber Length
m

1.0

Fiber Termination
Type

None (no connectors)

Product Characteristics

AP-ISO-1550PM

ParameterUnitSpecification
Center Wavelength
nm

1550

Operating Wavelength
nm

+/-20

Max. Optical Power (CW)
W

1, 5, or 10

Typical Peak Isolation (Dual Stage)
dB

58

Min. Isolation at 23 °C (Dual Stage)
dB

48

Typical Insertion Loss at 23 °C
dB

0.5

Max. Insertion Loss at -5 to 70 °C
dB

0.65

Min. Return Loss (Input/Output)
dB

55/50

Max. PDL at 23 °C
dB

N/A

Max. PMD
ps

N/A

Min. Extinction Ratio
dB

22

Package Dimensions
mm

12 x 10 x 80 (for 1 to 5 W)
12 x 10 x 80 (for 10 W)

Operating Temperature
mm

Ø5.5 x 35 (for 1 to 5 W)
12 x 10 x 80 (for 10 W)

Storage Temperature
°C

-5 to +70

Max. Tensile Load
N

5

Fiber Type
Type

PM Panda Fiber
250 µm Bare Fiber

Fiber Length
m

1.0

Fiber Termination
Type

None (no connectors)
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