We present an octave spanning supercontinuum (at the -35 dB level) ranging from 1100 nm to 2500 nm in InGaP photonic wire waveguides that are bonded to a silicon substrate and pumped by an ultrashort pulsed laser centered at 1550 nm. OCIS codes: (130.4310) Integrated optics, Nonlinear; (190.4400) Nonlinear optics, materials; (320.6629) Ultrafast optics, supercontinuum generation; (90.4390) Nonl...