Semiconductor ring lasers with delayed optical feedback: low-frequency fluctuations

2014 ◽  
Author(s):  
Guy Van der Sande ◽  
Lilia Mashal ◽  
Romain Modeste Nguimdo ◽  
Miguel C. Soriano ◽  
Jan Danckaert ◽  
...  
Keyword(s):  
Optical Feedback ◽  
Low Frequency ◽  
Ring Lasers ◽  
Frequency Fluctuations ◽  
Semiconductor Ring Lasers ◽  
Delayed Optical Feedback

Low-Frequency Fluctuations in Semiconductor Ring Lasers With Optical Feedback

2013 ◽  
Vol 49 (9) ◽  
pp. 790-797 ◽  
Author(s):  
Lilia Mashal ◽  
Romain Modeste Nguimdo ◽  
Guy Van der Sande ◽  
Miguel Cornelles Soriano ◽  
Jan Danckaert ◽  
...  
Keyword(s):  
Optical Feedback ◽  
Low Frequency ◽  
Ring Lasers ◽  
Frequency Fluctuations ◽  
Semiconductor Ring Lasers

scholarly journals Square-wave oscillations in semiconductor ring lasers with delayed optical feedback

2012 ◽  
Vol 20 (20) ◽  
pp. 22503 ◽  
Author(s):  
Lilia Mashal ◽  
Guy Van der Sande ◽  
Lendert Gelens ◽  
Jan Danckaert ◽  
Guy Verschaffelt
Keyword(s):  
Optical Feedback ◽  
Square Wave ◽  
Ring Lasers ◽  
Semiconductor Ring Lasers ◽  
Delayed Optical Feedback

scholarly journals Control of Timing Stability, and Suppression in Delayed Feedback Induced Frequency-Fluctuations by Means of Power Split Ratio and Delay Phase-Dependent Dual-Loop Optical Feedback

2021 ◽  
Vol 11 (10) ◽  
pp. 4529
Author(s):  
Haroon Asghar ◽  
John G. McInerney
Keyword(s):  
Coupling Strength ◽  
Optical Feedback ◽  
Fine Tuning ◽  
Split Ratio ◽  
Optical Delay ◽  
Quantum Dash ◽  
Power Split ◽  
Frequency Fluctuations ◽  
Mode Locked Lasers ◽  
Delayed Optical Feedback

We experimentally demonstrated a power split ratio and optical delay phase dependent dual-loop optical feedback to investigate the suppression of frequency-fluctuations induced due to delayed optical feedback. The device under investigation is self-mode-locked (SML) two-section quantum-dash (QDash) laser operating at ∼21 GHz and emitting at ∼1.55 m. The effect of two selective combinations of power split ratios (Loop-I: −23.29 dB and Loop-II: −28.06 dB, and Loop-I and Loop-II: −22 dB) and two optical delay phase settings ((i) stronger cavity set to integer resonance and fine-tuning the weaker cavity, (ii) weaker cavity set to integer resonance and fine-tuning of stronger cavity) on the suppression of cavity side-bands have been studied. Measured experimental results demonstrate that delayed optical feedback induced frequency-fluctuations can be effectively suppressed on integer resonance as well as on full delay range tuning (0–84 ps) by adjusting coupling strength −22 dB through Loop-I and Loop-II, respectively. Our findings suggest that power split ratio and delays phase-dependent dual-loop optical feedback can be used to maximize the performance of semiconductor mode-locked lasers.

Experimental and numerical study of square wave oscillations due to asymmetric optical feedback in semiconductor ring lasers

2012 ◽  
Author(s):  
Lilia Mashal ◽  
Guy Van der Sande ◽  
Lendert Gelens ◽  
Stefano Beri ◽  
Thomas Erneux ◽  
...  
Keyword(s):  
Optical Feedback ◽  
Numerical Study ◽  
Square Wave ◽  
Ring Lasers ◽  
Semiconductor Ring Lasers

scholarly journals Chaotic transitions and low-frequency fluctuations in semiconductor lasers with optical feedback

2000 ◽  
Vol 145 (1-2) ◽  
pp. 130-143 ◽  
Author(s):  
Ruslan L. Davidchack ◽  
Ying-Cheng Lai ◽  
Athanasios Gavrielides ◽  
Vassilios Kovanis
Keyword(s):  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Low Frequency ◽  
Frequency Fluctuations
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