Single-mode fiber connectors are used to terminate the single-mode fibers, ensuring efficient and reliable signal transmission. Modes are the possible solutions of the Helmholtz equation for waves, which is obtained by combining. Thorlabs stocks an extensive selection of single mode fiber optic connectors, available for immediate shipping. Choose from FC/PC, FC/APC, ST/PC, LC/PC, E-2000/PC, SC/PC, or SC/APC style connectors with ceramic ferrules. We also offer individual ceramic or stainless steel ferrules. Pricing (USD) Filter the results in the table by unit price based on your quantity. A tariff of 30% may be applied if shipping to the United States. 5 micron diameter of multimode fiber, minute scratches and alignment become much more critical in singlemode connectors.