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This investigation experimentally demonstrates a 40 GHz phase shifter based on a semiconductor laser. The phase shift is achieved by adjusting the bias current and wavelength detuning. The device has ...
Semiconductor Laser White Noise Suppression by Optical Filtering with Ultra-Narrowband FBG
Semiconductor lasers Fiber Bragg gratings
2011/5/21
The white frequency noise of semiconductor lasers is attenuated significantly by optical filtering with an ultra-narrowband fiber Bragg grating. This noise reduction will improve carrier phase estimat...
Analysis of Nonlinear Optical Effects in Monolithically Integrated FM-Mode-Locked Semiconductor Laser Diodes
Nonlinear Optical Effects Monolithically Integrated FM-Mode-Locked Semiconductor Laser Diodes
2009/7/17
Simulation shows that asymmetric nonlinear optical gain causing the mode instability of mode-locked lasers can be compensated by phase modulation. Mode stabilization was confirmed experimentally using...
Challenge to Organic Semiconductor Laser: Low-Threshold Photopumped Organic Lasers Made of Styryl Benzene Derivatives
Organic semiconductor laser Distributed feedback Distributed Bragg reflector
2009/6/9
Based on our research, we comment on recent progress in organic semiconductor lasers. Styryl benzene derivatives having good gain-narrowing performance are one of promising materials for organic semic...
Study on Small Vibration Sensor by Self-Coupling Effect of Semiconductor Laser
Self-coupling effect Small vibration Sensor
2009/6/1
Small vibration sensors with the laser interferometer have been developed. However, there are some disadvantages, for example, weakness to external vibration, difficulty in optical alignment, and so o...