高功率2w波长1550nm单频窄线宽光纤激光器
¥99999.00
线宽小于15KHZ高功率 单频窄线宽光纤激光器
¥99999.00
O波段 1310nm 64通道 电动光延迟线
¥450000.00
400nm带宽1260-1650nm全波段超宽带光源
¥999999.00
1550nm 高功率输出功率2W 窄线宽15KHz窄线宽激光器
¥99999.00
四川梓冠供应 单模保偏976nm泵浦激光器
¥99999.00
〖简介Introduction〗
机械式三环偏振控制利用光纤在外力作用下感生双折射原理制成。其中三个环分别等效为ë/4、ë/2、ë/4 三种波片，光波进过ë/4波片转换为线偏振光，再由ë/2波片调整偏振方向，最后经由ë/4波片将线偏振光的偏振状态变成任意的偏振态。由双折射效应产生的延迟效果主要由光纤的包层半径、光纤环绕半径和光波波长所决定，经验证该控制器可产生全方位偏振态的变化，调整的偏振态可覆盖整个庞加球。
The Mechanical Three-ring Polarization Control is made by the principle of induced birefringence of optical fiber under external force.Three rings are equivalent to wave plates of ë/4、ë/2 and ë/4 respectively.Light waves are converted into linearly polarized light by ë/4 wave plates,then the polarization direction is adjusted by ë/2 wave plates.Finally,the polarization state of linearly polarized light is changed into arbitrary polarization state by ë/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.
〖特性Features〗
等效于ë/2、ë/4 光学波片
Equivalent to ë/2, ë/4 optical wave plate
可调至庞加球上任意偏振态点
Adjustable to any point of polarization on the poincare sphere
低插入损耗，宽波长工作范围
Low insertion loss,wide wavelength range
做工精良，价格低廉
Well-made,price moderate
拆卸方便，可自行更换缠绕光纤
Easy to disassemble ,self-replacement winding fiber
〖应用Applications〗
单模到保偏光纤的应用
Single-mode to polarization-maintaining fiber
偏振相关损耗的测量(PDL)
Measurement of polarization-dependent loss(PDL)
偏振敏感的器件的应用
Application of polarization sensitive devices
光纤激光器
Fiber laser
光纤干涉仪
Fiber optic interferometer
〖产品结构图Product Structure Diagram 〗
偏振控制器单环延迟度与波长、绕环圈数的关系
The Relationship between Single Loop Delay of Polarization Controller and Wavelength, loop number.
机械式三环偏振控制器结构示意图 （单位mm）
Mechanical Three-ring Polarization Controller’s structure diagram
（测试单位：光纤环直径 40mm ，光纤包层直径 125µm）
(Test unit:Diameter of fiber loop is 40mm,diameter of fiber cladding is 125µm)
举例：偏振控制器光纤环固定直径为40mm ，将包层直径为125µm 的单模光纤绕在其中；
Example:The fiber loop with a fixed diameter of Polarization controller is 40mm,include single mode fiber of cladding diameter is 125µm)
当λ=1550nm ，环绕圈数loop=1 时，该环相当于λ/2 波片；
When λ=1550nm, loop number=1,go to λ/2 wave
当λ=1550nm ，环绕圈数loop=3 时，该环相当于3λ/2 波片。
When λ=1550nm, loop number=3,go to 3 λ/2 wave
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