Speckle-free image in a laser-diode microscope by using the optical feedback effect

1993 ◽  
Vol 18 (7) ◽  
pp. 549 ◽  
Author(s):  
Benjamin Dingel ◽  
Satoshi Kawata
Keyword(s):  
Laser Diode ◽  
Optical Feedback ◽  
Feedback Effect

Dual-Frequency Doppler LiDAR Using Periodic Window with Period-6 Based on External Optical Feedback Effect in a Laser Diode

2021 ◽  
Author(s):  
Zhuqiu Chen ◽  
Bairun Nie ◽  
Yuxi Ruan ◽  
Yanguang Yu ◽  
Qinghua Guo ◽  
...  
Keyword(s):  
Laser Diode ◽  
Optical Feedback ◽  
Feedback Effect ◽  
Doppler Lidar ◽  
Dual Frequency

scholarly journals SELF-MIXING LASER VIBROMETER WITHE RESOLUTION IN THE MICRO AND NANO METERS SCALE

Anales AFA ◽  
2021 ◽  
Vol 32 (1) ◽  
pp. 15-21
Author(s):  
L. E. Filgueira ◽  
◽  
C. T. Schmiegelow ◽  
Keyword(s):  
Laser Diode ◽  
Optical Feedback ◽  
The Self ◽  
Feedback Effect ◽  
Laser Vibrometer ◽  
Internal Reference ◽  
Contactless Measurements

We present the development of an interferometer capable of making contactless measurements of vibrations. The resultsshow the we achieve micro- and/or nano-metric measurements without the stabilization of the laser. While there aremultiple techniques to achieve this objective, in this case we use a method whose main virtue is the low componentcount and the self-alignment capacity. The method is based on the optical feedback effect in a laser diode which relieson the use of an internal reference for calibration.

Synchronization of Chaotic Quantum Dot Light Emitting Diodes under Optical Feedback Effect

2020 ◽  
pp. 144-148
Keyword(s):  
Quantum Dot ◽  
Delay Time ◽  
Chaos Synchronization ◽  
Optical Feedback ◽  
Light Emitting Diode ◽  
Feedback Effect ◽  
Complete Synchronization ◽  
Light Emitting ◽  
Coupling Methods ◽  
Coupling Parameters

Chaos synchronization of delayed quantum dot light emitting diode has been studied theortetically which are coupled via the unidirectional and bidirectional. at synchronization of chaotic, The dynamics is identical with delayed optical feedback for those coupling methods. Depending on the coupling parameters and delay time the system exhibits complete synchronization, . Under proper conditions, the receiver quantum dot light emitting diode can be satisfactorily synchronized with the transmitter quantum dot light emitting diode due to the optical feedback effect.

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