Abstract :
Experimental results are described for a new optical coupler, which consists of two laser diodes, two GRIN spherical rod lenses, a polarised filter and a single-mode fibre, and employs laser diode polarisation characteristics for an optical submarine transmission laser redundancy system. This optical coupler has two channels at a 1.3 ¿m wavelength. Optical coupler loss, which includes coupling loss, polarisation loss and assembly loss, is 4.9 dB for laser diode 1, and 5.2 dB for laser diode 2.
Keywords :
optical communication equipment; optical couplers; semiconductor junction lasers; GRIN spherical rod lenses; assembly loss; coupling loss; laser diodes; optical coupler; optical submarine transmission laser redundancy system; polarisation characteristics; polarisation loss; polarised filter; single-mode fibre;
