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Sagnac interferometer all-optical logic logic based on erbium-doped fiber coupler

An erbium-doped fiber and coupler technology, which is applied in the field of optical information to achieve the effects of reducing pump optical power, low pump power, and fast switching response speed

Inactive Publication Date: 2017-04-19
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the shortcomings of existing all-optical logic devices, the invention provides a Sagnac interferometer all-optical logic device based on an erbium-doped fiber coupler, which has the advantages of low pump power, fast switching response speed, and strong anti-interference ability. Suitable for all-optical communication systems

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  • Sagnac interferometer all-optical logic logic based on erbium-doped fiber coupler
  • Sagnac interferometer all-optical logic logic based on erbium-doped fiber coupler
  • Sagnac interferometer all-optical logic logic based on erbium-doped fiber coupler

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Embodiment Construction

[0017] The embodiments of the present invention will be described in detail below in conjunction with the drawings.

[0018] Such as figure 1 As shown, the Sagnac interferometer all-optical logic device based on the erbium-doped fiber coupler in this embodiment includes a signal source 1-1, a signal source 1-2, a circulator 2-1, a circulator 2-2, and a multiplexer 3. , Erbium-doped fiber coupler 4, pump source 5, optical isolator 6, splitter 7, filter 8-1, filter 8-2, the wavelength range of the pump wave generated by the pump source 5 is 900nm- 980nm, the power range is 0~1W. The signal source 1-1, 1-2 produces the signal wavelength range 1500nm-1550nm, the power is 1mW. The cross-coupling coefficient of the erbium-doped fiber coupler 4 when no pump light is applied is 0.5. The passband wavelength range of the first filter 8-1 and the second filter 8-2 is 1500 nm-1550 nm. The first port of the multiplexer 3 is a 50% port, and the second port is a 50% port.

[0019] The signal ...

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Abstract

The invention discloses a Sagnac interferometer all-optical logic device based on an erbium-doped fiber coupler. The Sagnac interferometer all-optical logic device is characterized by comprising a first signal source, a second signal source, a first circulator, a second circulator, a combiner, the erbium-doped fiber coupler, a pumping source, an optoisolator, a wave separator, a first filter and a second filter, wherein the first signal source is connected with a1 of the first circulator, a2 of the first circulator is connected with c1 of the combiner, a3 of the first circulator is an output end A, c2 of the combiner is connected with the pumping source, c3 of the combiner is connected with d1 of the erbium-doped fiber coupler, d3 of the erbium-doped fiber coupler is connected with e3 of the wave separator, e1 of the wave separator is connected with the optoisolator, e2 of the wave separator is connected with g1 of the first filter, g2 of the first filter is connected with h2 of the second filter, h1 of the second filter is connected with d4 of the erbium-doped fiber coupler, d2 of the erbium-doped fiber coupler is connected with b2 of the second circulator, b1 of the second circulator is connected with the second signal source, and b3 of the second circulator is an output end B.

Description

Technical field [0001] The invention belongs to the field of optical information technology, and specifically relates to a Sagnac interferometer all-optical logic device based on an erbium-doped fiber coupler. Background technique [0002] The all-optical logic device is an optical path conversion device that can convert optical signals from any input port to any output port. In addition to being used for various operations like traditional logic, all-optical logic is also an important device to realize signal processing processes such as all-optical bit recognition, data encoding, parity, address recognition, and demultiplexing. At the same time, optical logic devices are also implemented The foundation of photonic computer, therefore, many scholars in the industry have conducted extensive research on it. The current solutions for realizing all-optical logic operations mainly include semiconductor optical amplifiers and highly nonlinear optical fibers. Existing all-optical log...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F3/00
CPCG02F3/00
Inventor 李齐良朱梦云李冬强张真胡淼唐向宏曾然魏一振周雪芳卢旸钱正丰
Owner HANGZHOU DIANZI UNIV
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