Faraday
Rotator Mirror (FRM)
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Description: The
Faraday Rotator (FRM) provides a 90° rotation in the polarization
of reflected signals
independent of the state of input polarization. This feature
eliminates polarization induced fringe fading in interferometers and
sensors. It can also provide for forward and backward pass through
EDFA for gain optimization. It features low insertion loss and high
return loss in a compact inline package. |
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Applications: ·
EDFA ·
Fiber
laser ·
Interferometers ·
Sensors ·
Instrumentation |
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Key
Features: ·
Low
insertion loss ·
High
return loss ·
Precision
polarization rotation · Compact inline package |
Specifications
(two performance grades are offered):
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Premium Grade |
A Grade |
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Wavelength |
1310,
1550nm |
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Spectral width |
±20nm |
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| Faraday Rotation Angle (23°C) |
45°±0.5°
(single pass) 90°±1°
(double pass) |
45°±1°
(single pass) 90°±2° (double pass) |
| Typical Insertion (Reflection) Loss (lc±20nm, 23°C) |
£0.5dB
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£0.7dB
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Maximum Reflection Loss (lc±20nm,
23°C) |
£0.7dB |
£0.9dB
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Polarization Sensitivity |
0.02dB |
0.05dB |
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Return Loss |
³
30dB |
³
25dB |
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Optical Power |
300mW |
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Operating Temperature |
0
to 70°C |
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Storage Temperature |
-40
to 85°C |
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Size |
Compact
inline package |
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Ordering
Information:
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FRM |
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Wavelength 1550nm 1310nm Other |
=1 =2 =3 |
Grade Premium Grade A |
=P =A |
Fiber
Type SMF28
(900m) SMF28
(250m) Other |
=1 =2 =3 |
Fiber
Length 1m Other |
=1 =2 |
Connectors None FC/PC FC/APC Other |
=0 =1 =2 =3 |