T. Ota et al., 8-PORT MULTIMODE INTERCONNECTABLE STAR COUPLER ADOPTING INTERSECTED OPTICAL WAVE-GUIDE CIRCUITS, Electronics Letters, 32(4), 1996, pp. 320-321
The Letter reports an eight-port multimode interconnectable star coupl
er comprising an intersected optical waveguide circuit. The interconne
ctable star coupler formed on a polymer substrate exhibits an excess l
oss of 3.5dB and a return light loss of 38.2dB.