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We have fabricated ultra-short cavity membrane distributed Bragg reflector lasers on SiO2/Si substrate for constructing chip-to-chip optical links. To reduce the power consumption of transmitters, reducing cavity length is important. Since the membrane structure enables us to achieve a large optical confinement factor and a surface grating with a large coupling coefficient, we have successfully reduced...
Toward realization of an ultralow-power-consumption semiconductor light source for on-chip optical interconnection, we have been investigating the lateral current injection (LCI) membrane distributed feedback (DFB) laser. This time, we realized membrane DFB laser with 158 nm core thickness and demonstrated room-temperature continuous-wave (CW) operation with a threshold current of 390 μA for the cavity...
Toward realization of an ultralow-power-consumption semiconductor light source for optical interconnection, we have been investigating the lateral current injection (LCI) membrane distributed feedback (DFB) laser. This time, we realized membrane Fabry-Perot (FP) laser with 220 nm core thickness and demonstrated room-temperature continuous-wave (CW) operation with a threshold current of 3.5 mA for...
Lateral current injection DFB laser with a-Si surface grating was demonstrated, as step to realize membrane laser. The threshold current of 7.0 mA and the differential quantum efficiency of 43% from the front facet were obtained.
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