Optical bistability in side-mode injection locked dual-mode Fabry-Pérot laser diode
Source abstract
Abstract
In this paper, optical bistability characteristics are demonstrated experimentally based on a dual-mode laser system comprising a multi-mode Fabry-Pérot laser diode (MMFP-LD) and a built-in feedback cavity formed by a fiber facet. The results show that two lasing modes with frequency separation of ∼0.58 THz and comparable peak powers can be achieved by judicious adjustment of the bias current and the operating temperature of the laser chip, which has a peak fluctuation of less than ∼1 dBm over a measurement period of one hour. A combination of appropriate external injection power and wavelength detuning can result in remarkable optical bistability in two oscillation modes, in which the resulting contrast ratio between the unlocked and locked states can be up to 30 dB, and the corresponding hysteresis loop width can be changed by controlling the side-mode injection power and the wavelength detuning.
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Research context
OpenAlex topics: Photonic and Optical Devices · Optical Network Technologies · Advanced Fiber Laser Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Korea Advanced Institute of Science and Technology 1 Department of Electrical Engineering, , Daejeon 305-714, Republic of Korea
Korea Advanced Institute of Science and Technology 2 Department of Information and Communication Engineering, , Daejeon 305-714, Republic of Korea
References (38)
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