Accession Number:

AD1058827

Title:

Investigation of Dynamic Effects and Coherence Limits of Hybrid Si/III-V Lasers

Descriptive Note:

Technical Report,01 Oct 2015,30 Sep 2016

Corporate Author:

California Institute of Technology Pasadena United States

Personal Author(s):

• Yariv, Amnon
• Harfouche,Mark

Report Date:

2016-12-30

Pagination or Media Count:

15.0

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-IIIV 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 IIIV 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-IIIV lasers. It might be advantageous to consider enabling heterogeneously integrated lasers on different materials platforms to avoid non-linearities present in silicon.

Descriptors:

• MEASUREMENT
• lasers
• modulation
• silicon
• two photon absorption
• DYNAMICS
• instrumentation

Subject Categories:

• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE