Novel technique for reduction of amplitude modulation of pulse trains generated by subharmonic synchronous mode-locked laser

2002 ◽  
Vol 14 (4) ◽  
pp. 543-545 ◽  
Author(s):  
M. Attygalle ◽  
A. Nirmalathas ◽  
H.F. Liu
Keyword(s):  
Amplitude Modulation ◽  
Synchronous Mode ◽  
Pulse Trains ◽  
Novel Technique ◽  
Mode Locked Laser

scholarly journals A Multidimensional Multiplexing Mode-Locked Laser Based on a Dual-Ring Integrative Structure for Tri-Comb Generation

2020 ◽  
Vol 10 (22) ◽  
pp. 8260
Author(s):  
Ruitao Yang ◽  
Hao Sun ◽  
Haisu Lv ◽  
Jian Xu ◽  
Jinxuan Wu ◽  
...  
Keyword(s):  
Operation Mode ◽  
Dispersion Analysis ◽  
Heterodyne Detection ◽  
Laser Ranging ◽  
Pulse Trains ◽  
Wavelength Multiplexing ◽  
Mode Locked Laser ◽  
Comb Generation ◽  
Single Cavity ◽  
Dual Ring

The tri-comb-based multi-heterodyne detection technique has been proven to be a powerful tool for precision metrology, e.g., laser ranging and spectroscopy. However, in existing tri-comb generation methods, it is difficult to provide a large and variable difference in tri-comb repetition rates. In this paper; we propose a multidimensional multiplexing mode-locked laser based on a dual-ring integrative structure. Combining the dimensions of sub-ring multiplexing and wavelength multiplexing, two modes of tri-comb generation can be achieved with the dual-ring single cavity laser. The generated combs are identified based on the relative intensity of the pulse trains and optical spectrum, and the repetition rates of dual-combs from the same sub-ring are distinguished based on dispersion analysis. With repetition rates of approximately 47 MHz and 49.6 MHz, the minimum and maximum repetition rate difference of the generated tri-comb can be changed from 2.38 kHz and 2.59526 MHz to 2.74 kHz and 2.59720 MHz merely by switching the operation mode of the dual-ring integrated mode-locked laser. The obtained results indicate that our method can offer a powerful scheme for future multi-comb generation and its application in multi-heterodyne detection-based laser ranging and spectroscopy.

Semiconductor mode-locked laser with external feedback: emergence of multi-frequency pulse trains with an increasing number of modes

2019 ◽  
Vol 92 (4) ◽  
Author(s):  
Kathy Lüdge ◽  
Lina Jaurigue ◽  
Benjamin Lingnau ◽  
Soizic Terrien ◽  
Bernd Krauskopf
Keyword(s):  
Pulse Trains ◽  
External Feedback ◽  
Mode Locked Laser ◽  
Frequency Pulse
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