Theory and observation on non-linear effects limiting the coherence properties of high-Q hybrid Si/III-V lasers

Yaakov Vilenchik; Christos T. Santis; Scott T. Steger; Naresh Satyan; Amnon Yariv

doi:10.1117/12.2078067

10 March 2015 Theory and observation on non-linear effects limiting the coherence properties of high-Q hybrid Si/III-V lasers

Yaakov Vilenchik, Christos T. Santis, Scott T. Steger, Naresh Satyan, Amnon Yariv

Author Affiliations +

Proceedings Volume 9382, Novel In-Plane Semiconductor Lasers XIV; 93820N (2015) https://doi.org/10.1117/12.2078067
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Hybrid Si/III-V is a promising platform for semiconductor narrow-linewidth lasers, since light can be efficiently stored in low loss silicon and amplified in III-V materials. The introduction of a high-Q cavity in silicon as an integral part of the laser's resonator leads to major reduction of the laser linewidth. However, the large intra-cavity field intensity resulting from the high-Q operation gives rise to non-linear effects. We present a theoretical model based on non-linear rate equations to study the effect of two-photon absorption and induced free-carrier absorption in silicon on the laser's performance. The predictions from this model are compared to the experimental results obtained from narrow-linewidth lasers fabricated by us. It is shown to have an effect on the linearity of the L-I curve, and to reduce the achievable Schawlow- Townes linewidth.

Citation Download Citation

Yaakov Vilenchik, Christos T. Santis, Scott T. Steger, Naresh Satyan, and Amnon Yariv "Theory and observation on non-linear effects limiting the coherence properties of high-Q hybrid Si/III-V lasers", Proc. SPIE 9382, Novel In-Plane Semiconductor Lasers XIV, 93820N (10 March 2015); https://doi.org/10.1117/12.2078067

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