OPTICAL SIGNAL TRANSMITTER MODULS

摘要

An optical transmission module (10) for connection to an optical fibre (17) includes a laser (11), a waveguide (13) and at least one lens (15) mounted in a holder (23) for focusing light passing from the waveguide to at least one output for the optical fibre, the light beam diverging between the waveguide and adjacent lens and being subsequently focused into an optical fibre output, wherein a MEMS shutter assembly (21,121) is located in a diverging or converging portion of the light beam for attenuation of the optical output from the module.