New Patent Application Published

**US20230130757 - SELF-ALIGNED RIDGE WAVEGUIDE LASER STRUCTURE, METHOD FOR FABRICATION, AND METHOD FOR USE WITH INTERPOSER-BASED PICS**  

A structure and method for providing alignment aids that are co-fabricated with the optical emission output from a laser pedestal are described. In embodiments, the alignment aids are formed using processes and masking layers that produce a ridge waveguide laser structure. The use of same masking processes for the laser and the alignment aids provides lithographic level precision in the positioning of the alignment aids in relation to the optical output from the laser device. Optoelectrical die formed with the alignment aids may be used with complementary interposer structures to enable alignment of optical output from lasers formed on the optoelectrical die with optical devices on the interposer.

[https://patentscope.wipo.int/search/en/detail.jsf?docId=US396247863&\_cid=P20-LH4439-08987-1](https://patentscope.wipo.int/search/en/detail.jsf?docId=US396247863&_cid=P20-LH4439-08987-1)