An electromagnetic wave transmitting device (130, 400), comprising: a body (140, 440) comprising a transmitting end (142, 442) and a receiving end (141, 441); and a heating assembly (134, 434, 634) disposed on at least a perimeter of the body (140, 440), wherein the heating assembly comprises: an electrically resistive element (131, 431, 631; 132, 432, 433) having a main portion (131, 431, 631) and a connective portion (132, 432, 433) electrically coupled to the main portion (131, 431, 631), and an electrical connector (133, 431, 631), wherein the main portion (131, 431, 631) of the electrically resistive element (131, 431, 631; 132, 432, 433) wraps less than one time around the perimeter of the body (140, 440) to cover a majority of the perimeter of the transmitting end (142, 442), wherein the electrically resistive element (131, 431, 631; 132, 432, 433) has the form of a foil, wherein the electrical connector (133, 431, 631) is disposed on a distal end of the connective portion (132, 432, 433), wherein the heating assembly (134, 434, 634) is configured to prevent condensation and precipitation from accumulating on the body (140, 440), and wherein the heating assembly (134, 434, 634) is positioned relative to the body (140, 440) to allow light emitted by a light source to be received by the receiving end (141, 441) of the body (140, 440) and transmitted out the transmitting end (142, 442) of the body (140, 440). a body (140, 440) comprising a transmitting end (142, 442) and a receiving end (141, 441); and a heating assembly (134, 434, 634) disposed on at least a perimeter of the body (140, 440), wherein the heating assembly comprises: an electrically resistive element (131, 431, 631; 132, 432, 433) having a main portion (131, 431, 631) and a connective portion (132, 432, 433) electrically coupled to the main portion (131, 431, 631), and an electrical connector (133, 431, 631), wherein the main portion (131, 431, 631) of the electrically resistive element (131, 431, 631; 132, 432, 433) wraps less than one time around the perimeter of the body (140, 440) to cover a majority of the perimeter of the transmitting end (142, 442), wherein the electrically resistive element (131, 431, 631; 132, 432, 433) has the form of a foil, wherein the electrical connector (133, 431, 631) is disposed on a distal end of the connective portion (132, 432, 433), wherein the heating assembly (134, 434, 634) is configured to prevent condensation and precipitation from accumulating on the body (140, 440), and wherein the heating assembly (134, 434, 634) is positioned relative to the body (140, 440) to allow light emitted by a light source to be received by the receiving end (141, 441) of the body (140, 440) and transmitted out the transmitting end (142, 442) of the body (140, 440). an electrically resistive element (131, 431, 631; 132, 432, 433) having a main portion (131, 431, 631) and a connective portion (132, 432, 433) electrically coupled to the main portion (131, 431, 631), and an electrical connector (133, 431, 631), wherein the main portion (131, 431, 631) of the electrically resistive element (131, 431, 631; 132, 432, 433) wraps less than one time around the perimeter of the body (140, 440) to cover a majority of the perimeter of the transmitting end (142, 442), wherein the electrically resistive element (131, 431, 631; 132, 432, 433) has the form of a foil, wherein the electrical connector (133, 431, 631) is disposed on a distal end of the connective portion (132, 432, 433), wherein the heating assembly (134, 434, 634) is configured to prevent condensation and precipitation from accumulating on the body (140, 440), and wherein the heating assembly (134, 434, 634) is positioned relative to the body (140, 440) to allow light emitted by a light source to be received by the receiving end (141, 441) of the body (140, 440) and transmitted out the transmitting end (142, 442) of the body (140, 440).