【摘要】 根据光波导理论，对光纤的耦合原理进行了详细的理论分析，提出了研制耦合器的设计方案。采用抛磨方法，并通过可的机械装置，设计并研制出了耦合率高且可调的单模光纤定向耦合器。更多还原

【Abstract】 Coupling principles of fiber are analysed according to optical waveguide theory with a design plan presented. By polishing method, a special adjusting mechanism is employed to design and develop turnable directional coupler with high coupling ratio .更多还原