T. Hashimoto et al., HYBRID INTEGRATION OF SPOT-SIZE CONVERTED LASER-DIODE ON PLANAR LIGHTWAVE CIRCUIT PLATFORM BY PASSIVE ALIGNMENT TECHNIQUE, IEEE photonics technology letters, 8(11), 1996, pp. 1504-1506
An index alignment technique was developed for a planar lightwave circ
uit platform. The technique was successfully applied to the hybrid int
egration of a spot-size converted laser diode on the platform. The fab
ricated modules exhibited an average coupling loss of 4.2 dB and a max
imum optical output power of 10 mW at an injection current of 70 mA.