污水處理設備 污泥處理設備 水處理過濾器 軟化水設備/除鹽設備 純凈水設備 消毒設備|加藥設備 供水/儲水/集水/排水/輔助 水處理膜 過濾器濾芯 水處理濾料 水處理劑 水處理填料 其它水處理設備
廣州市瑞東電子科技有限公司
廣州市瑞東電子科技有限公司
Low insertion lossWide wavelength rangeEasy disassemble,self-replacement,winding fiber
The mechanical three-ring polarization controller
Product description
The mechanical three-ring polarization control is based on the principle of Birefringence produced by optical fiber under external force. The three rings are equivalent to λ/4, λ/2 ａnd λ/4 wave plates, respectively. The light waves passing through λ/4 wave plates are converted into linearly polarized light, and the polarization direction is adjusted by/2 wave plates. Finally, the polarization state of linearly polarized light is changed into arbitrary polarization state by/4 wave plates. The delay effect produced by the birefringence effect is mainly determined by the cladding radius of the fiber, the fiber ring radius and the wavelength of the light, the adjusted polarization state can cover the entire poincare sphere.
Application area
Product structure diagram
Schematic diagram of polarization controller
Relationship between single-loop delay and wavelength , number of loops in polarization controller.(Test unit: fiber loop diameter 40mm, fiber cladding diameter 900µm)
For example: Polarization controller fiebr loop fixed diameter of 40 mm, the cladding diameter of 900µm of tight-sheathed fiber around in the ghost.
When λ＝1550nm , and loop number =1 , the ring is equivalent toλ/2 wave plate.
When λ＝1550nm , and loop number =3, the ring is equivalent to 3λ/2 wave plate
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