Heating structure of silicon filter

• Main Authors: WU LI, LI YANG, XU YUNBING, JIA CHUNYAN, WU YUPING
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2022
• 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 LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The utility model discloses a heating structure of a silicon filter. The heating structure comprises an a-Si filter, a PD detector, a WDM diaphragm, a to-be-measured end double-fiber collimator, a heating end double-fiber collimator, a to-be-measured light source and a heating light source, the to-be-detected end double-optical-fiber collimator, the WDM diaphragm, the a-Si filter and the PD detector are sequentially arranged at intervals in the light path direction, and the heating end double-optical-fiber collimator is arranged on the side of the WDM diaphragm; to-be-measured light emitted by the to-be-measured light source is input from the to-be-measured end double-fiber collimator, and reaches the a-Si filter after being transmitted by the WDM diaphragm; heating light emitted by the heating light source is input from the heating end double-optical-fiber collimator and reaches the a-Si filter after being reflected by the WDM diaphragm, the heating light emitted by the heating light source is a flat-topped