An optical module, such as a package for a vertical cavity surface emitting laser diode (VCSEL) or other light emitting device, includes monitoring of the emitted optical power by tapping the transmitted beam. The module includes a substrate, which carries the light emitting device and an optical monitor....http://www.google.fr/patents/US7165896?utm_source=gb-gplus-shareBrevet US7165896 - Light transmitting modules with optical power monitoring
Light transmitting modules with optical power monitoring
