Laser diode arrays and systems including structures for permitting optical power measurement therefrom

摘要

A laser diode system permitting indirect measurement of optical power includes a laser diode which emits usable light from a front facet and spontaneously emits stray light substantially proportional to the usable light from another facet; and a light pipe disposed proximate to the laser diode which collects and waveguides only the stray light to thereby generate a stray light beam providing an indication of optical power.