Ch9Sec5

Ch9Sec5 - R y x y x P out = 0 E P in y 45 E Dr. Joseph C....

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Dr. Joseph C. Palais 9.5 1 THE FIBER FORUM Fiber Optic Communications Dr. JOSEPH C. PALAIS PRESENTED BY
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Dr. Joseph C. Palais 9.5 2 Section 9.5 Isolator
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Dr. Joseph C. Palais 9.5 3 An isolator is a one-way transmission line. y x x 45 0 Faraday Rotator Polarizer P L Polarizer P R x y E y x P in 45 0 E y P out = P in Input in forward direction:
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Dr. Joseph C. Palais 9.5 4 Input in reverse direction: y x x 45 0 Faraday Rotator Polarizer P L Polarizer P
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Unformatted text preview: R y x y x P out = 0 E P in y 45 E Dr. Joseph C. Palais 9.5 5 The Faraday rotator is non-reciprocal. Application of the isolator: Protects laser diodes from back reflections. It is also used in the EDFA (erbium doped fiber amplifier) to reduce back reflections which might cause the amplifier to go into oscillation....
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Ch9Sec5 - R y x y x P out = 0 E P in y 45 E Dr. Joseph C....

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