A Quantum Dot Optical Modulator for Integration With Si CMOS
Abstract
During the period covered by this report, we have successfully overcome several technical challenges for the device fabrication and made solid progress heading toward a functional optical modulator of 635 nm working wavelength. This is the wavelength of the commercially available DVD lasers. The key challenge for us is the insufficient thickness control in spin-coating in the university fabrication laboratory like ours. As will be shown in the report, the variation in the film thickness is significantly larger than the value that is routinely achievable in manufacturing facilities, which is what is required for matching of the cavity mode with the laser wavelength. We have also fabricated several prototypes of devices with the absorption peak narrowly missed the 635 nm working wavelength. All of these suggest that we are at the eve of making a well functional optical modulator. Another key element of the program is the education of under represented students. Mr. Seife Woldeeyesus, who is an undergraduate student at UCLA participated actively in the program. He has mastered the technique of device processing especially sputter deposition. Moreover, his professional maturity and interest in engineering have progressed significantly.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2005
- Accession Number
- ADA459498
Entities
People
- Y. H. Xie
Organizations
- University of California, Los Angeles