FO Attenuators

Product description Attenuators are used to adapt the transmitted light power to the characteristics of the implanted receiver. The Telegärtner ST, SC, FC single mode inline attenuator brings together the benefits of an attenuation performed using special doped fibre and the innovative features of the SC, LC - PC (0°) or APC (8°) connector system. Different insertion loss values are achieved using specially doped fibres, thus ensuring availability over the full range of wavelengths from 1250 to 1360 nm and 1480 to 1580 nm. The standard product range includes attenuators in 5 dB increments up to max. 30 dB; 1 dB increments are also available on request. Telegärtner attenuators are characterized by low tolerance, constant attenuation values over the entire service life, a robust design with metal housing and by simple, economic handling. Climatic Characteristics Operating temperature: -5°...70° C Storage temperature: -25°...80° C Optical Characteristics Connector type: Singlemode APC: SC, FC, LC Connector type: Singlemode PC: ST, SC, FC, LC Fibre: 9/125 µm Wavelength: 1250 nm - 1360 nm; 1480 nm - 1580 nm attenuation: for 5 dB, 10 dB, 15 dB, 20 dB, 25 dB, 30 dB, on request in 1 dB steps Maximal attenuation tolerance: for 1-5 dB: ±0.5 dB¹; for 6-10: ±1 dB¹; for 11-20 dB: ±1.5 dB¹; for 21-30 dB: ±2 dB¹ Durability (mating cycles): ≥500 Return loss: Singlemode APC: ≥65 dB² Return loss: Singlemode PC: ≥43 dB² Ferrule split sleeve: ceramic, slotted sleeve