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Optical fiber filter

A fiber filter and filter technology, which is used in lasers, laser parts, semiconductor lasers, etc. to ensure stability and reduce high and low fluctuations.

Inactive Publication Date: 2014-04-09
TXSTAR LASER TECH SHANGHAI CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] With the rapid development of optical communication technology, the optical fiber filters on the market are relatively mature. Optical fiber filters of various wavelengths and bandwidths can better meet the needs of the market. This type of filter only has the function of band-pass filtering. , there are also equalization filters to obtain the desired fixed pulse shape of the signal light, but there is no filter that can smooth pulses with randomly varying amplitudes

Method used

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0025] This embodiment is a preferred embodiment.

[0026] figure 1 A block diagram of the fiber optic filter. Optical fiber filters include optical modules and electrical modules; the use of opalescent diffuser glass in the optical module can smooth the chaotic and randomly changing signal light to a certain extent, weaken the ups and downs at the top of the pulse signal light, and pass through the opalescent diffuser glass. Thickness control can realize the smoothing of various chaotic and randomly changing pulse signal lights.

[0027] The input signal light needs to be a pulsed light, which can be a signal light with random and random fluctuations at the top of the pulse. Milky white diffuse glass is a kind of milky white opaque glass. Bubbles, stones, streaks and serious physical inhomogeneities inside the glass all cause various scatt...

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Abstract

The invention relates to an optical fiber filter, and aims to provide the optical fiber filter which has the function of smoothing a waveform and fills the blank of the market. The optical fiber filter is characterized in that an optical module mainly comprises an energy compensator and opal diffuse glass; the energy compensator mainly comprises a pumping laser, a circulator, a filter, a wavelength division multiplexer and a doped optical fiber; an input port of the circulator is used as a signal light input end; an output port of the circulator is used as a signal light output port to be connected with subsequent equipment; a middle port of the circulator is connected with a signal end of the wavelength division multiplexer through a filter; an output end of the wavelength division multiplexer is connected with the doped optical fiber to serve as a connecting end of the opal diffuse glass; and a pumping end of the wavelength division multiplexer is connected with the pumping laser. According to the optical fiber filter, the fluctuation of the top of pulse signal light can be weakened by adopting the opal diffuse glass; and smoothing of various disordered pulse signal light in random variation can be realized by thickness control of the opal diffuse glass.

Description

technical field [0001] The present invention relates to optical fiber filters. technical background [0002] With the rapid development of optical communication technology, the optical fiber filters on the market are relatively mature. Optical fiber filters of various wavelengths and bandwidths can better meet the needs of the market. This type of filter only has the function of band-pass filtering. , there are also equalization filters that can obtain the desired fixed pulse shape of the signal light, but there is no filter that can smooth pulses with randomly varying amplitudes. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an optical fiber filter with the function of smoothing waveforms to make up for the gap in the market. [0004] For solving the problems of the technologies described above, the technical solution of the present invention is: [0005] An optical fiber filter, including an optical module ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/293H01S5/042
Inventor 龚心弦邢美术杨文奎
Owner TXSTAR LASER TECH SHANGHAI CO LTD
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