Journals / Gazi Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 1998 / Cilt: 11 - Sayı: 1

Determination of a boundary limit value for dynamic stability of semiconductor laser diode with external optical feedback

Harici optik geribeslemeli yarıiletken lazer diyod'un dinamik kararlılığı için sınır değerinin belirlenmesi

Pages
31–40
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The effect of optical feedback on the stability of the system has been too bring the laser into astable condition power reflection ratio has been taken as $(ƒ_{ext}leq 10^{-4})$

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, dynamic stability analysis of modulated semiconductor laser diodes with external optical feedback has been made.
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Key Findings & Data:In the analysis the frequency response of the transfer function of laser diode$H(jomega_m)$,the transfer function of laser diode with external optical feedback $TF(jomega_m)$ and optical feedback transfer funetion $K(jomega_m)$ obtained from small signal ratio equations has been accomplished using Nyquist stability analysis in complex domain.
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Conclusion & Impact:The effect of optical feedback on the stability of the system has been too bring the laser into astable condition power reflection ratio has been taken as $(ƒ_{ext}leq 10^{-4})$
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, dynamic stability analysis of modulated semiconductor laser diodes with external optical feedback has been made. In the analysis the frequency response of the transfer function of laser diode$H(jomega_m)$,the transfer function of laser diode with external optical feedback $TF(jomega_m)$ and optical feedback transfer funetion $K(jomega_m)$ obtained from small signal ratio equations has been accomplished using Nyquist stability analysis in complex domain. The baundary value of damping frquency has been determined taking. The effect of optical feedback on the stability of the system has been too bring the laser into astable condition power reflection ratio has been taken as $(ƒ_{ext}leq 10^{-4})$

Özet

Bu çalışmada optik geribeslemeli yarıiletken lazer diyodun modülasyon altındaki dinamik kararlılık analizi yapılmıştır. Analizde, küçük işaret oran eşitliklerinden elde edilen, lazer diyod (LD) transfer fonksiyonu $H(jomega_m)$ optik geribeslemeli LD transfer fonksiyonu $TF(jomega_m)$ ve optik geribesleme transfer fonksiyonu $K(jomega_m)$’nın frekans cevapları, Nyquist kararlılık kriterine göre kompleks düzlemde analiz edilmiştir. Optik geribeslemenin sistem kararlılığına olan etkisi göz önüne alınarak, LD’yi kararlı hale getirmek için sönüm (damping) frekansı sınır değeri de belirlenmiştir. LD’yi kararlı hale getirmek için güç yansıma oranı $(ƒ_{ext}leq 10^{-4})$ olarak alınmıştır.

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Cite This Article

ÇAVUŞOĞLU, A., YILDIRIM, R. (2022). Determination of a boundary limit value for dynamic stability of semiconductor laser diode with external optical feedback. Gazi Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 11 - Sayı: 1, 31–40. https://ajindex.com/articles/522627