Table 1 Building blocks available on Fraunhofer HHI’s PIC foundry platform
From: Integrated transmitter devices on InP exploiting electro-absorption modulation
Tx-type BB | Passive BB | Rx-type BB |
|---|---|---|
gain element/SOA | optical waveguide (3 different index contrasts) | pin-PD (40G & <10G) |
DFB laser diode (20G) | tapered waveguide transition | PD impedance matching RC |
DBR laser | waveguide circular arc | |
DBR laser | waveguide crossing | |
phase shifter (current inject.) | I/O spot size converter | |
tunable Bragg grating | directional coupler | |
MMI (1 × 2; 2 × 2) | ||
arrayed waveguide grating | ||
polarisation converter | ||
polarisation beam splitter | ||
polarisation converter | ||
phase shifter (thermo- optic) | ||
metal interconnects & waveguide crossover | ||
RF lines | ||
p - isolation section |