Generation of incoherent light from a laser diode subject to external optical injection from a superluminescent diode

In this study, incoherent light with a spectral linewidth of 7 nm and 140 mW of power was generated from a laser diode (LD) into which incoherent light emitted from a superluminescent diode was injected with 2.7 mW of power. The spectral linewidth of the light from the LD was broadened to 12 nm when...

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Published inApplied optics. Optical technology and biomedical optics Vol. 53; no. 3; p. 435
Main Authors Takamizawa, Akifumi, Yanagimachi, Shinya, Ikegami, Takeshi
Format Journal Article
LanguageEnglish
Published United States 20.01.2014
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Abstract In this study, incoherent light with a spectral linewidth of 7 nm and 140 mW of power was generated from a laser diode (LD) into which incoherent light emitted from a superluminescent diode was injected with 2.7 mW of power. The spectral linewidth of the light from the LD was broadened to 12 nm when the diode's output power was reduced to 15 mW. In the process of transformation from single-mode laser light to incoherent light with a broad spectrum by increasing injection-light power, multimode laser oscillation and a noisy spectrum were found in the light from the LD. This optical system can be used not only for amplification of incoherent light but also as a coherence-convertible light source.
AbstractList In this study, incoherent light with a spectral linewidth of 7 nm and 140 mW of power was generated from a laser diode (LD) into which incoherent light emitted from a superluminescent diode was injected with 2.7 mW of power. The spectral linewidth of the light from the LD was broadened to 12 nm when the diode's output power was reduced to 15 mW. In the process of transformation from single-mode laser light to incoherent light with a broad spectrum by increasing injection-light power, multimode laser oscillation and a noisy spectrum were found in the light from the LD. This optical system can be used not only for amplification of incoherent light but also as a coherence-convertible light source.
Author Takamizawa, Akifumi
Ikegami, Takeshi
Yanagimachi, Shinya
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  givenname: Takeshi
  surname: Ikegami
  fullname: Ikegami, Takeshi
BackLink https://www.ncbi.nlm.nih.gov/pubmed/24514129$$D View this record in MEDLINE/PubMed
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Snippet In this study, incoherent light with a spectral linewidth of 7 nm and 140 mW of power was generated from a laser diode (LD) into which incoherent light emitted...
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Title Generation of incoherent light from a laser diode subject to external optical injection from a superluminescent diode
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