Feedback insensitive external-cavity semiconductor ring laser utilizing a weak intracavity isolator

Theodorus van Schaijk, Daan Lenstra, Kevin Williams, Erwin Bente

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

External optical feedback (EOF), caused by the return loss of connected circuits, is well known to have a strong impact on the performance of semiconductor lasers [1]. Feedback effects are usually prevented by placing an optical isolator at the output of the laser. A strong isolation value of approximately 60dB is typically required for tunable lasers. It has proven difficult to implement sufficiently strong optical isolators in a form suited to photonic integration [2]. For this reason we have previously proposed a ring laser with weak intracavity isolation to enable a feedback insensitive integrated tunable laser [3]. In such a laser the isolator is used only to enforce unidirectional operation of the device and the returned signal couples in the lossy counter-propagating direction. Using our rate equation analysis it was predicted that 10dB intracavity isolation completely suppresses the effects of EOF over the operating range of interest in terms of output power, linewidth and relative intensity noise. In such a cavity, the weak isolation can now be implemented with known integration schemes [2].

Originele taal-2Engels
Titel2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's1
ISBN van elektronische versie978-1-7281-0469-0
DOI's
StatusGepubliceerd - 1 jun 2019
Evenement2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Duitsland
Duur: 23 jun 201927 jun 2019

Congres

Congres2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
LandDuitsland
StadMunich
Periode23/06/1927/06/19

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Citeer dit

van Schaijk, T., Lenstra, D., Williams, K., & Bente, E. (2019). Feedback insensitive external-cavity semiconductor ring laser utilizing a weak intracavity isolator. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 [8872232] Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/CLEOE-EQEC.2019.8872232