Investigation of Dynamic Effects and Coherence Limits of Hybrid Si/III-V Lasers
Abstract
We have achieved the 3 tasks we set out to complete: 1. We dramatically improved the performance of the frequency noise power spectral density measurement setup allowing measurement to be taken at 300 MHz. This enabled the measurement of a sub kHz Schawlow-Townes linewidth. 2. We have theoretically and experimentally investigated the limits of high coherence Si-III/V lasers considering non-linearities that exist in Si. We have found that while the coherence of these lasers can be increased by moving a larger fraction of the light from the high loss III/V to the low loss Si, FCA and TPA limit the output power and external efficiency of the lasers. We also proposed methodologies to overcome limitations imposed by FCA and TPA while still using silicon as a photon storage device. 3. We have investigated the modulation characteristics of the Si-III/V lasers. It might be advantageous to consider enabling heterogeneously integrated lasers on different materials platforms to avoid non-linearities present in silicon.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 30, 2016
- Accession Number
- AD1058827
Entities
People
- Amnon Yariv
- Mark Harfouche
Organizations
- California Institute of Technology