Pulse phase stabilization method and device

• Main Authors: CHEN HONGWEI, GU XINGYAO, XIE SHIZHONG, CHEN MINGHUA
• Format: Patent
• Language: Chinese; English
• Published: 06.07.2011
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention relates to a pulse phase stabilization method and a device. The method comprises the following steps: S1, obtaining continuous light as signal light; S2, carrying out polarization state modulation and power control on the signal light and pulse light to be processed and inputting the signal light and the pulse light into respective and optical fiber to carry out cross polarization modulation; S3, filtering the output light after being subjected to the cross polarization modulation to filter the pulse light; S4, carrying out polarization state adjustment and intensity conversion to the filtered signal light to obtain a wavelength conversion light signal, thereby outputting a pulse signal. By adopting the technical scheme, the cross polarization modulation effect and the wavelength conversion principle are utilized for completely removing the phase information of the original pulse, so that the phase consistence of output pulses is ensured, thereby greatly improving the performance of the whole sy